* Cygwin 3.1.5, 3.1.6 and 3.1.7 builds reporting tty errors with OpenSSH Services in indows Event Logs
@ 2020-09-14 8:18 Peter Board
2020-09-15 16:22 ` Stephen Carrier
0 siblings, 1 reply; 12+ messages in thread
From: Peter Board @ 2020-09-14 8:18 UTC (permalink / raw)
To: cygwin
[-- Attachment #1: Type: text/plain, Size: 2244 bytes --]
Hi,
I am trying to update our Cygwin libraries at work, which we use on many servers to provide OpenSSH services.
I have been making update packages for many years from a Cygwin install on a development server, and went to update our systems to the latest OpenSSH 8.3p1 build.
However after making the update package, I found that the Windows Event Log (or if Syslogd is setup – which we do have in our general Cygwin deployment /var/log/messages) gets two errors when using any version of the Cygwin Libraries after the 3.1.4 build.
Sep 14 12:06:48 hostname sshd: PID 2093: error: Failed to disconnect from controlling tty.
Sep 14 12:06:48 hostname sshd: PID 2093: error: ioctl(TIOCSCTTY): Operation not permitted
I first tried rolling back to older OpenSSH packages (tried 8.2, 8.1 and what we had been using 7.8), but found that all versions still had the same error in the ssh connections. I then tried older builds of the core Cygwin updates and found that version 3.1.4 and earlier don’t display this error when the SSH connection occurs, but 3.1.5 and later (tested up to 3.1.7) do show this error.
It doesn’t actually seem to affect the SSH connections, they work fine, but it logs two errors every time.
I found the lines that produce these errors in the sshpty.c file (https://github.com/openssh/openssh-portable/blob/master/sshpty.c), lines 120 and 127 in the source code write these errors out, but I can’t see specifically what I would need to change to fix this, and I checked that the source code for older versions of OpenSSH haven’t changed for many versions (checked the master branch, and versions back to the 7.8 build we were on before in the sshpty.c source code).
Anyway, I think its a bug that has been introduced in 3.1.5 version or later, or possibly it has always been happening but just not reported before?
I’ve attached a cygcheck.exe -s output (I removed a few bits that for internal security I wouldn’t want to post), but in my test Cygwin x64 build I can see this problem is resolved by rolling back to the 3.1.4 cygwin core libraries.
Any help in resolving this issue would be great.
Peter
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
[-- Attachment #2: cygcheck.txt --]
[-- Type: text/plain, Size: 15509 bytes --]
Cygwin Configuration Diagnostics
Current System Time: Mon Sep 14 18:02:40 2020
Windows 2012 R2 Server Datacenter Ver 6.3 Build 9600
Running in Terminal Service session
Path: C:\Program Files\avs\bin
C:\Program Files\avs\bin32
C:\Windows\system32
C:\Windows
C:\Windows\System32\Wbem
C:\Windows\System32\WindowsPowerShell\v1.0\
C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\110\Tools\Binn\
C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\
C:\Program Files\Microsoft SQL Server\120\Tools\Binn\
C:\Program Files\Microsoft SQL Server\120\DTS\Binn\
C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\ManagementStudio
C:\Program Files (x86)\Microsoft SQL Server\120\DTS\Binn
c:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn
c:\Program Files\Microsoft SQL Server\100\Tools\Binn
c:\Program Files\Microsoft SQL Server\100\DTS\Binn
C:\Program Files\Microsoft DNX\Dnvm
C:\Program Files (x86)\Microsoft SMS Installer\Installer Step-up Utility\Apps
C:\Program Files (x86)\Microsoft SMS Installer\Installer Step-up Utility\Apps\Extensions
C:\Program Files (x86)\ExchangeMapi
C:\Program Files\Microsoft\Web Platform Installer
C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\ManagementStudio\
C:\Program Files (x86)\Microsoft SQL Server\120\DTS\Binn\
.
Output from F:\cygwin64\bin\id.exe
UID: 1051173(xxxxxx admin)
GID: 1049089(Domain Users)
1049089(Domain Users)
197612(HOSTNAME+HelpLibraryUpdaters)
197617(HOSTNAME+WSS_ADMIN_WPG)
559(Performance Log Users)
545(Users)
544(Administrators)
14(REMOTE INTERACTIVE LOGON)
4(INTERACTIVE)
11(Authenticated Users)
15(This Organization)
4095(CurrentSession)
66048(LOCAL)
1049088(Domain Admins)
405504(High Mandatory Level)
SysDir: C:\Windows\system32
WinDir: C:\Windows
Path = 'C:\Program Files\avs\bin;C:\Program Files\avs\bin32;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\CITEC\PROGRAMS\I386\TOOLS;C:\CITEC\SPLUNK;C:\Program Files (x86)\OpenSSH\Bin;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\110\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\ManagementStudio;C:\Program Files (x86)\Microsoft SQL Server\120\DTS\Binn;c:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn;c:\Program Files\Microsoft SQL Server\100\Tools\Binn;c:\Program Files\Microsoft SQL Server\100\DTS\Binn;C:\Users\boardp_admin.QGI\.dnx\bin;C:\Program Files\Microsoft DNX\Dnvm;C:\Program Files (x86)\Microsoft SMS Installer\Installer Step-up Utility\Apps;C:\Program Files (x86)\Microsoft SMS Installer\Installer Step-up Utility\Apps\Extensions;C:\Program Files (x86)\ExchangeMapi;E:\oracle\instantclient_12_1;C:\Program Files\Microsoft\Web Platform Installer;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\ManagementStudio\;C:\Program Files (x86)\Microsoft SQL Server\120\DTS\Binn\;'
Use '-r' to scan registry
obcaseinsensitive set to 1
Cygwin installations found in the registry:
System: Key: 26046373354fe4fc Path: F:\cygwin64
User: Key: b99ad95be22e68fe Path: F:\cygwin
c: hd NTFS 143006Mb 84% CP CS UN PA FC QU
d: hd NTFS 35708Mb 14% CP CS UN PA FC QU SQLDATA
e: hd NTFS 40829Mb 60% CP CS UN PA FC QU SQL Backup and Email
f: hd NTFS 10205Mb 19% CP CS UN PA FC QU Cygwin
g: hd NTFS 102269Mb 31% CP CS UN PA FC QU DISTRIBS
z: cd N/A N/A
F:\cygwin64 / system binary,auto
F:\cygwin64\bin /usr/bin system binary,auto
F:\cygwin64\lib /usr/lib system binary,auto
cygdrive prefix /cygdrive user binary,posix=0,auto
39k 2016/09/19 .\cygargp-0.dll
19k 2018/12/20 .\cygattr-1.dll
254k 2020/03/31 .\cygblkid-1.dll
66k 2019/07/21 .\cygbz2-1.dll
42k 2020/02/17 .\cygcbor-0.dll
13k 2019/01/02 .\cygcom_err-2.dll
39k 2017/09/03 .\cygcrypt-0.dll
194k 2019/04/03 .\cygcrypt-2.dll
2273k 2018/04/03 .\cygcrypto-1.0.0.dll
2451k 2020/04/08 .\cygcrypto-1.1.dll
154k 2013/10/20 .\cygedit-0.dll
353k 2020/03/31 .\cygfdisk-1.dll
27k 2015/11/17 .\cygffi-6.dll
118k 2020/02/19 .\cygfido2-1.dll
56k 2019/07/28 .\cygformw-10.dll
73k 2020/04/16 .\cyggcc_s-seh-1.dll
46k 2019/07/10 .\cyggdbm-4.dll
582k 2020/03/01 .\cyggmp-10.dll
938k 2017/05/02 .\cyggnutls-28.dll
1472k 2019/07/29 .\cyggnutls-30.dll
24k 2017/05/02 .\cyggnutls-openssl-27.dll
274k 2018/03/16 .\cyggssapi_krb5-2.dll
33k 2017/02/13 .\cyghistory7.dll
167k 2016/03/13 .\cyghogweed-2.dll
168k 2019/02/19 .\cyghogweed-4.dll
1007k 2020/07/13 .\cygiconv-2.dll
196k 2014/12/06 .\cygidn-11.dll
114k 2019/07/29 .\cygidn2-0.dll
42k 2016/10/23 .\cygintl-8.dll
192k 2018/03/16 .\cygk5crypto-3.dll
754k 2018/03/16 .\cygkrb5-3.dll
37k 2018/03/16 .\cygkrb5support-0.dll
144k 2019/07/21 .\cyglzma-5.dll
125k 2018/03/18 .\cygmagic-1.dll
168k 2018/01/23 .\cygman-2-7-6-1.dll
22k 2018/01/23 .\cygmandb-2-7-6-1.dll
28k 2019/07/28 .\cygmenuw-10.dll
346k 2017/08/01 .\cygmpfr-4.dll
2664k 2020/07/11 .\cygmpfr-6.dll
301k 2019/07/28 .\cygncursesw-10.dll
180k 2016/03/13 .\cygnettle-4.dll
205k 2019/02/19 .\cygnettle-6.dll
1020k 2020/03/27 .\cygp11-kit-0.dll
14k 2019/07/28 .\cygpanelw-10.dll
474k 2020/03/29 .\cygpcre-1.dll
41k 2019/09/12 .\cygpipeline-1.dll
41k 2016/07/13 .\cygpopt-0.dll
54k 2016/09/20 .\cygprocps-5.dll
65k 2019/07/21 .\cygpsl-5.dll
219k 2017/02/13 .\cygreadline7.dll
11k 2015/07/17 .\cygsigsegv-2.dll
14k 2020/02/19 .\cygsk-libfido2.dll
156k 2020/03/31 .\cygsmartcols-1.dll
403k 2018/04/03 .\cygssl-1.0.0.dll
506k 2020/04/08 .\cygssl-1.1.dll
12k 2017/09/09 .\cygssp-0.dll
1681k 2020/04/16 .\cygstdc++-6.dll
68k 2019/07/29 .\cygtasn1-6.dll
57k 2019/07/28 .\cygticw-10.dll
1612k 2018/08/16 .\cygunistring-2.dll
27k 2020/03/31 .\cyguuid-1.dll
30k 2013/11/15 .\cygwrap-0.dll
83k 2017/03/03 .\cygz.dll
3473k 2020/08/22 .\cygwin1.dll
Cygwin DLL version info:
DLL version: 3.1.7
DLL epoch: 19
DLL old termios: 5
DLL malloc env: 28
Cygwin conv: 181
API major: 0
API minor: 340
Shared data: 5
DLL identifier: cygwin1
Mount registry: 3
Cygwin registry name: Cygwin
Installations name: Installations
Cygdrive default prefix:
Build date:
Shared id: cygwin1S5
39k 2016/09/19 F:\cygwin64\bin\cygargp-0.dll
19k 2018/12/20 F:\cygwin64\bin\cygattr-1.dll
254k 2020/03/31 F:\cygwin64\bin\cygblkid-1.dll
66k 2019/07/21 F:\cygwin64\bin\cygbz2-1.dll
42k 2020/02/17 F:\cygwin64\bin\cygcbor-0.dll
13k 2019/01/02 F:\cygwin64\bin\cygcom_err-2.dll
39k 2017/09/03 F:\cygwin64\bin\cygcrypt-0.dll
194k 2019/04/03 F:\cygwin64\bin\cygcrypt-2.dll
2273k 2018/04/03 F:\cygwin64\bin\cygcrypto-1.0.0.dll
2451k 2020/04/08 F:\cygwin64\bin\cygcrypto-1.1.dll
154k 2013/10/20 F:\cygwin64\bin\cygedit-0.dll
353k 2020/03/31 F:\cygwin64\bin\cygfdisk-1.dll
27k 2015/11/17 F:\cygwin64\bin\cygffi-6.dll
118k 2020/02/19 F:\cygwin64\bin\cygfido2-1.dll
56k 2019/07/28 F:\cygwin64\bin\cygformw-10.dll
73k 2020/04/16 F:\cygwin64\bin\cyggcc_s-seh-1.dll
46k 2019/07/10 F:\cygwin64\bin\cyggdbm-4.dll
582k 2020/03/01 F:\cygwin64\bin\cyggmp-10.dll
938k 2017/05/02 F:\cygwin64\bin\cyggnutls-28.dll
1472k 2019/07/29 F:\cygwin64\bin\cyggnutls-30.dll
24k 2017/05/02 F:\cygwin64\bin\cyggnutls-openssl-27.dll
274k 2018/03/16 F:\cygwin64\bin\cyggssapi_krb5-2.dll
33k 2017/02/13 F:\cygwin64\bin\cyghistory7.dll
167k 2016/03/13 F:\cygwin64\bin\cyghogweed-2.dll
168k 2019/02/19 F:\cygwin64\bin\cyghogweed-4.dll
1007k 2020/07/13 F:\cygwin64\bin\cygiconv-2.dll
196k 2014/12/06 F:\cygwin64\bin\cygidn-11.dll
114k 2019/07/29 F:\cygwin64\bin\cygidn2-0.dll
42k 2016/10/23 F:\cygwin64\bin\cygintl-8.dll
192k 2018/03/16 F:\cygwin64\bin\cygk5crypto-3.dll
754k 2018/03/16 F:\cygwin64\bin\cygkrb5-3.dll
37k 2018/03/16 F:\cygwin64\bin\cygkrb5support-0.dll
144k 2019/07/21 F:\cygwin64\bin\cyglzma-5.dll
125k 2018/03/18 F:\cygwin64\bin\cygmagic-1.dll
168k 2018/01/23 F:\cygwin64\bin\cygman-2-7-6-1.dll
22k 2018/01/23 F:\cygwin64\bin\cygmandb-2-7-6-1.dll
28k 2019/07/28 F:\cygwin64\bin\cygmenuw-10.dll
346k 2017/08/01 F:\cygwin64\bin\cygmpfr-4.dll
2664k 2020/07/11 F:\cygwin64\bin\cygmpfr-6.dll
301k 2019/07/28 F:\cygwin64\bin\cygncursesw-10.dll
180k 2016/03/13 F:\cygwin64\bin\cygnettle-4.dll
205k 2019/02/19 F:\cygwin64\bin\cygnettle-6.dll
1020k 2020/03/27 F:\cygwin64\bin\cygp11-kit-0.dll
14k 2019/07/28 F:\cygwin64\bin\cygpanelw-10.dll
474k 2020/03/29 F:\cygwin64\bin\cygpcre-1.dll
41k 2019/09/12 F:\cygwin64\bin\cygpipeline-1.dll
41k 2016/07/13 F:\cygwin64\bin\cygpopt-0.dll
54k 2016/09/20 F:\cygwin64\bin\cygprocps-5.dll
65k 2019/07/21 F:\cygwin64\bin\cygpsl-5.dll
219k 2017/02/13 F:\cygwin64\bin\cygreadline7.dll
11k 2015/07/17 F:\cygwin64\bin\cygsigsegv-2.dll
14k 2020/02/19 F:\cygwin64\bin\cygsk-libfido2.dll
156k 2020/03/31 F:\cygwin64\bin\cygsmartcols-1.dll
403k 2018/04/03 F:\cygwin64\bin\cygssl-1.0.0.dll
506k 2020/04/08 F:\cygwin64\bin\cygssl-1.1.dll
12k 2017/09/09 F:\cygwin64\bin\cygssp-0.dll
1681k 2020/04/16 F:\cygwin64\bin\cygstdc++-6.dll
68k 2019/07/29 F:\cygwin64\bin\cygtasn1-6.dll
57k 2019/07/28 F:\cygwin64\bin\cygticw-10.dll
1612k 2018/08/16 F:\cygwin64\bin\cygunistring-2.dll
27k 2020/03/31 F:\cygwin64\bin\cyguuid-1.dll
30k 2013/11/15 F:\cygwin64\bin\cygwrap-0.dll
83k 2017/03/03 F:\cygwin64\bin\cygz.dll
3473k 2020/08/22 F:\cygwin64\bin\cygwin1.dll
Cygwin DLL version info:
DLL version: 3.1.7
DLL epoch: 19
DLL old termios: 5
DLL malloc env: 28
Cygwin conv: 181
API major: 0
API minor: 340
Shared data: 5
DLL identifier: cygwin1
Mount registry: 3
Cygwin registry name: Cygwin
Installations name: Installations
Cygdrive default prefix:
Build date:
Shared id: cygwin1S5
Service : cygsshd
Display name : CYGWIN cygsshd
Current State : Stopped
Command : /usr/sbin/sshd -D
Cygwin Package Information
Package Version Status
_autorebase 001007-1 OK
alternatives 1.3.30c-10 OK
base-cygwin 3.8-1 OK
base-files 4.3-2 OK
bash 4.4.12-3 OK
bzip2 1.0.8-1 OK
ca-certificates 2.40-1 OK
coreutils 8.26-2 OK
crypto-policies 20190218-1 OK
csih 0.9.11-1 OK
cygrunsrv 1.62-1 OK
cygutils 1.4.16-2 OK
cygwin 3.1.7-1 OK
dash 0.5.9.1-1 OK
diffutils 3.5-2 OK
dos2unix 7.3.4-1 OK
editrights 1.03-1 OK
file 5.32-1 OK
findutils 4.6.0-1 OK
gawk 5.1.0-1 OK
getent 2.18.90-4 OK
grep 3.0-2 OK
groff 1.22.4-1 OK
gzip 1.8-1 OK
hostname 3.13-1 OK
inetutils 1.9.4-1 OK
inetutils-server 1.9.4-1 OK
info 6.7-1 OK
ipc-utils 1.0-2 OK
less 551-1 OK
libargp 20110921-3 OK
libattr1 2.4.48-2 OK
libblkid1 2.33.1-2 OK
libbz2_1 1.0.8-1 OK
libcbor 0.5.0-1 OK
libcom_err2 1.44.5-1 OK
libcrypt0 2.1-1 OK
libcrypt2 4.4.4-1 OK
libedit0 20130712-1 OK
libfdisk1 2.33.1-2 OK
libffi6 3.2.1-2 OK
libfido2 1.3.0-2 OK
libgcc1 9.3.0-2 OK
libgdbm4 1.13-1 OK
libgmp10 6.2.0-2 OK
libgnutls28 3.3.27-1 OK
libgnutls30 3.6.9-1 OK
libgssapi_krb5_2 1.15.2-2 OK
libhogweed2 2.7.1-1 OK
libhogweed4 3.4.1-1 OK
libiconv 1.16-2 OK
libiconv2 1.16-2 OK
libidn11 1.29-1 OK
libidn2_0 2.2.0-1 OK
libintl8 0.19.8.1-2 OK
libk5crypto3 1.15.2-2 OK
libkrb5_3 1.15.2-2 OK
libkrb5support0 1.15.2-2 OK
liblzma5 5.2.4-1 OK
libmpfr4 3.1.5-1p10 OK
libmpfr6 4.1.0-1 OK
libncursesw10 6.1-1.20190727 OK
libnettle4 2.7.1-1 OK
libnettle6 3.4.1-1 OK
libopenssl100 1.0.2o-1 OK
libp11-kit0 0.23.20-1 OK
libpcre1 8.44-1 OK
libpipeline1 1.5.1-1 OK
libpopt-common 1.16-2 OK
libpopt0 1.16-2 OK
libprocps-ng5 3.3.11-1 OK
libpsl5 0.21.0-1 OK
libreadline7 7.0.3-3 OK
libsigsegv2 2.10-2 OK
libsmartcols1 2.33.1-2 OK
libssl1.1 1.1.1f-1 OK
libssp0 6.4.0-1 OK
libstdc++6 9.3.0-2 OK
libtasn1_6 4.14-1 OK
libunistring2 0.9.10-1 OK
libuuid1 2.33.1-2 OK
libwrap0 7.6-22 OK
login 1.13-1 OK
man-db 2.7.6.1-1 OK
mintty 3.3.0-1 OK
nano 2.9.7-1 OK
ncurses 6.1-1.20190727 OK
openssh 8.3p1-1 OK
openssl 1.1.1f-1 OK
p11-kit 0.23.20-1 OK
p11-kit-trust 0.23.20-1 OK
procps-ng 3.3.11-1 OK
publicsuffix-list-dafsa 20200326-1 OK
rebase 4.4.4-1 OK
run 1.3.4-2 OK
sed 4.4-1 OK
tar 1.29-1 OK
terminfo 6.1-1.20190727 OK
terminfo-extra 6.1-1.20190727 OK
tzcode 2020a-1 OK
tzdata 2020a-1 OK
util-linux 2.33.1-2 OK
vim 7.4.2367-1 OK
vim-common 7.4.2367-1 OK
vim-minimal 8.2.0486-1 OK
wget 1.19.1-2 OK
which 2.20-2 OK
xxd 7.4.2367-1 OK
xz 5.2.4-1 OK
zlib0 1.2.11-1 OK
Use -h to see help about each section
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: Cygwin 3.1.5, 3.1.6 and 3.1.7 builds reporting tty errors with OpenSSH Services in indows Event Logs
2020-09-14 8:18 Cygwin 3.1.5, 3.1.6 and 3.1.7 builds reporting tty errors with OpenSSH Services in indows Event Logs Peter Board
@ 2020-09-15 16:22 ` Stephen Carrier
2020-09-15 23:46 ` Peter Board
0 siblings, 1 reply; 12+ messages in thread
From: Stephen Carrier @ 2020-09-15 16:22 UTC (permalink / raw)
To: Peter Board; +Cc: cygwin
On Mon, Sep 14, 2020 at 08:18:53AM +0000, Peter Board via Cygwin wrote:
> Hi,
>
> I am trying to update our Cygwin libraries at work, which we use on many servers to provide OpenSSH services.
> I have been making update packages for many years from a Cygwin install on a development server, and went to update our systems to the latest OpenSSH 8.3p1 build.
>
> However after making the update package, I found that the Windows Event Log (or if Syslogd is setup – which we do have in our general Cygwin deployment /var/log/messages) gets two errors when using any version of the Cygwin Libraries after the 3.1.4 build.
>
>
> Sep 14 12:06:48 hostname sshd: PID 2093: error: Failed to disconnect from controlling tty.
>
> Sep 14 12:06:48 hostname sshd: PID 2093: error: ioctl(TIOCSCTTY): Operation not permitted
Can this be reproduced in a standard cygwin install? It seems as if
your have a customized environment where you compile your own packages,
and updated the cygwin libs perhaps w/o updating openssh at the same time.
Stephen
^ permalink raw reply [flat|nested] 12+ messages in thread
* RE: Cygwin 3.1.5, 3.1.6 and 3.1.7 builds reporting tty errors with OpenSSH Services in indows Event Logs
2020-09-15 16:22 ` Stephen Carrier
@ 2020-09-15 23:46 ` Peter Board
2020-09-17 16:16 ` Stephen Carrier
2020-09-17 16:51 ` Takashi Yano
0 siblings, 2 replies; 12+ messages in thread
From: Peter Board @ 2020-09-15 23:46 UTC (permalink / raw)
To: Stephen Carrier; +Cc: cygwin
Hi Stephen,
Thanks for responding. I have a standard Cygwin install on my Development server (32bit and 64bit setups) that I extract the updates from for our custom package and I tested for the fault after I saw it was occurring in our custom Cygwin install using the standard Cygwin setup. The same errors are being logged in the standard Cygwin install. I ran the Cygwin sshd installation script in the standard 64bit Cygwin install, to create the Cygwin OpenSSH service, authorised my user account to login and found that the Windows Event logs also logged the same errors as our normal package location.
I keep the standard installs on “F:\Cygwin” (32bit Cygwin) and “F:\Cygwin64” (64bit Cygwin).
Our Custom Cygwin \ OpenSSH package lives on “C:\Program Files(x86)\OpenSSH”, which is where we have kept it for 15+ odd years.
After setting up the Cygwin (64bit version) just using a out of the box Cygwin installer on F:\Cygwin64, I setup OpenSSH using the built in /bin/ssh-host-config script and then authorised my user to login to the “cygsshd” service. The standard SSH service with no modifications from me, produces these errors in the Windows Event Logs.
It accepted the password and logged the user in fine to bash shell. (I’ve removed the hostname and username from the example below)
---------- Event Log Entries ------------
Log Name: Application
Source: sshd
Date: 14/09/2020 4:30:26 PM
Event ID: 0
Task Category: None
Level: Information
Keywords: Classic
User: SYSTEM
Computer: hostname
Description:
The description for Event ID 0 from source sshd cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
sshd: PID 1620: Accepted password for USERNAME from X.X.X.X port 56545 ssh2
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="sshd" />
<EventID Qualifiers="0">0</EventID>
<Level>4</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2020-09-14T06:30:26.000000000Z" />
<EventRecordID>2427841</EventRecordID>
<Channel>Application</Channel>
<Computer>hostname</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data>sshd: PID 1620: Accepted password for USERNAME from X.X.X.X port 56545 ssh2</Data>
</EventData>
</Event>
---------- Event Log Entries ------------
Log Name: Application
Source: sshd
Date: 14/09/2020 4:30:27 PM
Event ID: 0
Task Category: None
Level: Error
Keywords: Classic
User: SYSTEM
Computer: hostname
Description:
The description for Event ID 0 from source sshd cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
sshd: PID 1622: error: Failed to disconnect from controlling tty.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="sshd" />
<EventID Qualifiers="0">0</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2020-09-14T06:30:27.000000000Z" />
<EventRecordID>2427842</EventRecordID>
<Channel>Application</Channel>
<Computer>hostname</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data>sshd: PID 1622: error: Failed to disconnect from controlling tty.</Data>
</EventData>
</Event>
---------- Event Log Entries ------------
Log Name: Application
Source: sshd
Date: 14/09/2020 4:30:27 PM
Event ID: 0
Task Category: None
Level: Error
Keywords: Classic
User: SYSTEM
Computer: hostname
Description:
The description for Event ID 0 from source sshd cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
sshd: PID 1622: error: ioctl(TIOCSCTTY): Operation not permitted
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="sshd" />
<EventID Qualifiers="0">0</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2020-09-14T06:30:27.000000000Z" />
<EventRecordID>2427843</EventRecordID>
<Channel>Application</Channel>
<Computer> hostname </Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data>sshd: PID 1622: error: ioctl(TIOCSCTTY): Operation not permitted</Data>
</EventData>
</Event>
-------------- End of Entries ------------------
Regards,
Peter
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
From: Stephen Carrier<mailto:carrier@berkeley.edu>
Sent: Wednesday, 16 September 2020 2:22 AM
To: Peter Board<mailto:p_board@hotmail.com>
Cc: cygwin@cygwin.com<mailto:cygwin@cygwin.com>
Subject: Re: Cygwin 3.1.5, 3.1.6 and 3.1.7 builds reporting tty errors with OpenSSH Services in indows Event Logs
On Mon, Sep 14, 2020 at 08:18:53AM +0000, Peter Board via Cygwin wrote:
> Hi,
>
> I am trying to update our Cygwin libraries at work, which we use on many servers to provide OpenSSH services.
> I have been making update packages for many years from a Cygwin install on a development server, and went to update our systems to the latest OpenSSH 8.3p1 build.
>
> However after making the update package, I found that the Windows Event Log (or if Syslogd is setup – which we do have in our general Cygwin deployment /var/log/messages) gets two errors when using any version of the Cygwin Libraries after the 3.1.4 build.
>
>
> Sep 14 12:06:48 hostname sshd: PID 2093: error: Failed to disconnect from controlling tty.
>
> Sep 14 12:06:48 hostname sshd: PID 2093: error: ioctl(TIOCSCTTY): Operation not permitted
Can this be reproduced in a standard cygwin install? It seems as if
your have a customized environment where you compile your own packages,
and updated the cygwin libs perhaps w/o updating openssh at the same time.
Stephen
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: Cygwin 3.1.5, 3.1.6 and 3.1.7 builds reporting tty errors with OpenSSH Services in indows Event Logs
2020-09-15 23:46 ` Peter Board
@ 2020-09-17 16:16 ` Stephen Carrier
2020-09-17 16:51 ` Takashi Yano
1 sibling, 0 replies; 12+ messages in thread
From: Stephen Carrier @ 2020-09-17 16:16 UTC (permalink / raw)
To: Peter Board; +Cc: cygwin
Please don't top-post in this list. I'll move your reply down.
> From: [2]Stephen Carrier
> Sent: Wednesday, 16 September 2020 2:22 AM
> To: [3]Peter Board
> Cc: [4]cygwin@cygwin.com
> Subject: Re: Cygwin 3.1.5, 3.1.6 and 3.1.7 builds reporting tty errors
> with OpenSSH Services in indows Event Logs
>
>
> On Mon, Sep 14, 2020 at 08:18:53AM +0000, Peter Board via Cygwin wrote:
> > Hi,
> >
> > I am trying to update our Cygwin libraries at work, which we use on
> many servers to provide OpenSSH services.
> > I have been making update packages for many years from a Cygwin
> install on a development server, and went to update our systems to the
> latest OpenSSH 8.3p1 build.
> >
> > However after making the update package, I found that the Windows
> Event Log (or if Syslogd is setup – which we do have in our general
> Cygwin deployment /var/log/messages) gets two errors when using any
> version of the Cygwin Libraries after the 3.1.4 build.
> >
> >
> > Sep 14 12:06:48 hostname sshd: PID 2093: error: Failed to disconnect
> from controlling tty.
> >
> > Sep 14 12:06:48 hostname sshd: PID 2093: error: ioctl(TIOCSCTTY):
> Operation not permitted
> Can this be reproduced in a standard cygwin install? It seems as if
> your have a customized environment where you compile your own packages,
> and updated the cygwin libs perhaps w/o updating openssh at the same
> time.
> Stephen
>
> References
>
> 1. https://go.microsoft.com/fwlink/?LinkId=550986
> 2. mailto:carrier@berkeley.edu
> 3. mailto:p_board@hotmail.com
> 4. mailto:cygwin@cygwin.com
On Tue, Sep 15, 2020 at 11:46:30PM +0000, Peter Board wrote:
> Hi Stephen,
>
>
> Thanks for responding. I have a standard Cygwin install on my
> Development server (32bit and 64bit setups) that I extract the updates
> from for our custom package and I tested for the fault after I saw it
> was occurring in our custom Cygwin install using the standard Cygwin
> setup. The same errors are being logged in the standard Cygwin install.
> I ran the Cygwin sshd installation script in the standard 64bit Cygwin
> install, to create the Cygwin OpenSSH service, authorised my user
> account to login and found that the Windows Event logs also logged the
> same errors as our normal package location.
>
>
> I keep the standard installs on “F:\Cygwin” (32bit Cygwin) and
> “F:\Cygwin64” (64bit Cygwin).
>
>
> Our Custom Cygwin \ OpenSSH package lives on “C:\Program
> Files(x86)\OpenSSH”, which is where we have kept it for 15+ odd years.
>
>
> After setting up the Cygwin (64bit version) just using a out of the box
> Cygwin installer on F:\Cygwin64, I setup OpenSSH using the built in
> /bin/ssh-host-config script and then authorised my user to login to the
> “cygsshd” service. The standard SSH service with no modifications from
> me, produces these errors in the Windows Event Logs.
>
>
> It accepted the password and logged the user in fine to bash shell.
> (I’ve removed the hostname and username from the example below)
>
>
> ---------- Event Log Entries ------------
>
>
> Log Name: Application
>
> Source: sshd
>
> Date: 14/09/2020 4:30:26 PM
>
> Event ID: 0
>
> Task Category: None
>
> Level: Information
>
> Keywords: Classic
>
> User: SYSTEM
>
> Computer: hostname
>
> Description:
>
> The description for Event ID 0 from source sshd cannot be found. Either
> the component that raises this event is not installed on your local
> computer or the installation is corrupted. You can install or repair
> the component on the local computer.
>
>
> If the event originated on another computer, the display information
> had to be saved with the event.
>
>
> The following information was included with the event:
>
>
> sshd: PID 1620: Accepted password for USERNAME from X.X.X.X port 56545
> ssh2
>
>
> Event Xml:
>
> <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
>
> <System>
>
> <Provider Name="sshd" />
>
> <EventID Qualifiers="0">0</EventID>
>
> <Level>4</Level>
>
> <Task>0</Task>
>
> <Keywords>0x80000000000000</Keywords>
>
> <TimeCreated SystemTime="2020-09-14T06:30:26.000000000Z" />
>
> <EventRecordID>2427841</EventRecordID>
>
> <Channel>Application</Channel>
>
> <Computer>hostname</Computer>
>
> <Security UserID="S-1-5-18" />
>
> </System>
>
> <EventData>
>
> <Data>sshd: PID 1620: Accepted password for USERNAME from X.X.X.X
> port 56545 ssh2</Data>
>
> </EventData>
>
> </Event>
>
>
> ---------- Event Log Entries ------------
>
>
> Log Name: Application
>
> Source: sshd
>
> Date: 14/09/2020 4:30:27 PM
>
> Event ID: 0
>
> Task Category: None
>
> Level: Error
>
> Keywords: Classic
>
> User: SYSTEM
>
> Computer: hostname
>
> Description:
>
> The description for Event ID 0 from source sshd cannot be found. Either
> the component that raises this event is not installed on your local
> computer or the installation is corrupted. You can install or repair
> the component on the local computer.
>
>
> If the event originated on another computer, the display information
> had to be saved with the event.
>
>
> The following information was included with the event:
>
>
> sshd: PID 1622: error: Failed to disconnect from controlling tty.
>
>
> Event Xml:
>
> <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
>
> <System>
>
> <Provider Name="sshd" />
>
> <EventID Qualifiers="0">0</EventID>
>
> <Level>2</Level>
>
> <Task>0</Task>
>
> <Keywords>0x80000000000000</Keywords>
>
> <TimeCreated SystemTime="2020-09-14T06:30:27.000000000Z" />
>
> <EventRecordID>2427842</EventRecordID>
>
> <Channel>Application</Channel>
>
> <Computer>hostname</Computer>
>
> <Security UserID="S-1-5-18" />
>
> </System>
>
> <EventData>
>
> <Data>sshd: PID 1622: error: Failed to disconnect from controlling
> tty.</Data>
>
> </EventData>
>
> </Event>
>
> ---------- Event Log Entries ------------
>
>
> Log Name: Application
>
> Source: sshd
>
> Date: 14/09/2020 4:30:27 PM
>
> Event ID: 0
>
> Task Category: None
>
> Level: Error
>
> Keywords: Classic
>
> User: SYSTEM
>
> Computer: hostname
>
> Description:
>
> The description for Event ID 0 from source sshd cannot be found. Either
> the component that raises this event is not installed on your local
> computer or the installation is corrupted. You can install or repair
> the component on the local computer.
>
>
> If the event originated on another computer, the display information
> had to be saved with the event.
>
>
> The following information was included with the event:
>
>
> sshd: PID 1622: error: ioctl(TIOCSCTTY): Operation not permitted
>
>
> Event Xml:
>
> <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
>
> <System>
>
> <Provider Name="sshd" />
>
> <EventID Qualifiers="0">0</EventID>
>
> <Level>2</Level>
>
> <Task>0</Task>
>
> <Keywords>0x80000000000000</Keywords>
>
> <TimeCreated SystemTime="2020-09-14T06:30:27.000000000Z" />
>
> <EventRecordID>2427843</EventRecordID>
>
> <Channel>Application</Channel>
>
> <Computer> hostname </Computer>
>
> <Security UserID="S-1-5-18" />
>
> </System>
>
> <EventData>
>
> <Data>sshd: PID 1622: error: ioctl(TIOCSCTTY): Operation not
> permitted</Data>
>
> </EventData>
>
> </Event>
>
>
> -------------- End of Entries ------------------
>
>
> Regards,
>
>
> Peter
>
>
> Sent from [1]Mail for Windows 10
Hi Peter.
If you can reproduce the error with a standard cygwin install as
you claim, why muddy the waters by talking about your custom builds?
A problem in the standard install is of much more interest to the list
and would provide some focus that is missing from this report, which is
all over the place and has me confused about how anyone would go about
helping you.
Is it possible that the message is coming from the Windows OpenSSH
server? Finding errors in the Event Log instead of /var/log/cygsshd.log
suggests this to me. Also, the fact that the service name is 'sshd'
instead of 'cygsshd'. Maybe have a look at /var/log/cygsshd.log to see
if some other process grabbed port 22 preventing cygsshd from starting.
Also, you don't say what client you are using. Are these errors in
response to an attempted client connection or do they happen at service
startup? How about with different clients?
Stephen
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: Cygwin 3.1.5, 3.1.6 and 3.1.7 builds reporting tty errors with OpenSSH Services in indows Event Logs
2020-09-15 23:46 ` Peter Board
2020-09-17 16:16 ` Stephen Carrier
@ 2020-09-17 16:51 ` Takashi Yano
[not found] ` <PSXP216MB03268C87FE0C80D06B7A79E99A3E0@PSXP216MB0326.KORP216.PROD.OUTLOOK.COM>
1 sibling, 1 reply; 12+ messages in thread
From: Takashi Yano @ 2020-09-17 16:51 UTC (permalink / raw)
To: cygwin; +Cc: Peter Board
On Tue, 15 Sep 2020 23:46:30 +0000
Peter Board via Cygwin wrote:
> Hi Stephen,
>
> Thanks for responding. I have a standard Cygwin install on my Development server (32bit and 64bit setups) that I extract the updates from for our custom package and I tested for the fault after I saw it was occurring in our custom Cygwin install using the standard Cygwin setup. The same errors are being logged in the standard Cygwin install. I ran the Cygwin sshd installation script in the standard 64bit Cygwin install, to create the Cygwin OpenSSH service, authorised my user account to login and found that the Windows Event logs also logged the same errors as our normal package location.
>
> I keep the standard installs on “F:\Cygwin” (32bit Cygwin) and “F:\Cygwin64” (64bit Cygwin).
>
> Our Custom Cygwin \ OpenSSH package lives on “C:\Program Files(x86)\OpenSSH”, which is where we have kept it for 15+ odd years.
>
> After setting up the Cygwin (64bit version) just using a out of the box Cygwin installer on F:\Cygwin64, I setup OpenSSH using the built in /bin/ssh-host-config script and then authorised my user to login to the “cygsshd” service. The standard SSH service with no modifications from me, produces these errors in the Windows Event Logs.
>
> It accepted the password and logged the user in fine to bash shell. (I’ve removed the hostname and username from the example below)
>
> ---------- Event Log Entries ------------
>
> Log Name: Application
> Source: sshd
> Date: 14/09/2020 4:30:26 PM
> Event ID: 0
> Task Category: None
> Level: Information
> Keywords: Classic
> User: SYSTEM
> Computer: hostname
> Description:
> The description for Event ID 0 from source sshd cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
>
> If the event originated on another computer, the display information had to be saved with the event.
>
> The following information was included with the event:
>
> sshd: PID 1620: Accepted password for USERNAME from X.X.X.X port 56545 ssh2
>
> Event Xml:
> <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
> <System>
> <Provider Name="sshd" />
> <EventID Qualifiers="0">0</EventID>
> <Level>4</Level>
> <Task>0</Task>
> <Keywords>0x80000000000000</Keywords>
> <TimeCreated SystemTime="2020-09-14T06:30:26.000000000Z" />
> <EventRecordID>2427841</EventRecordID>
> <Channel>Application</Channel>
> <Computer>hostname</Computer>
> <Security UserID="S-1-5-18" />
> </System>
> <EventData>
> <Data>sshd: PID 1620: Accepted password for USERNAME from X.X.X.X port 56545 ssh2</Data>
> </EventData>
> </Event>
>
> ---------- Event Log Entries ------------
>
> Log Name: Application
> Source: sshd
> Date: 14/09/2020 4:30:27 PM
> Event ID: 0
> Task Category: None
> Level: Error
> Keywords: Classic
> User: SYSTEM
> Computer: hostname
> Description:
> The description for Event ID 0 from source sshd cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
>
> If the event originated on another computer, the display information had to be saved with the event.
>
> The following information was included with the event:
>
> sshd: PID 1622: error: Failed to disconnect from controlling tty.
>
> Event Xml:
> <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
> <System>
> <Provider Name="sshd" />
> <EventID Qualifiers="0">0</EventID>
> <Level>2</Level>
> <Task>0</Task>
> <Keywords>0x80000000000000</Keywords>
> <TimeCreated SystemTime="2020-09-14T06:30:27.000000000Z" />
> <EventRecordID>2427842</EventRecordID>
> <Channel>Application</Channel>
> <Computer>hostname</Computer>
> <Security UserID="S-1-5-18" />
> </System>
> <EventData>
> <Data>sshd: PID 1622: error: Failed to disconnect from controlling tty.</Data>
> </EventData>
> </Event>
> ---------- Event Log Entries ------------
>
> Log Name: Application
> Source: sshd
> Date: 14/09/2020 4:30:27 PM
> Event ID: 0
> Task Category: None
> Level: Error
> Keywords: Classic
> User: SYSTEM
> Computer: hostname
> Description:
> The description for Event ID 0 from source sshd cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
>
> If the event originated on another computer, the display information had to be saved with the event.
>
> The following information was included with the event:
>
> sshd: PID 1622: error: ioctl(TIOCSCTTY): Operation not permitted
>
> Event Xml:
> <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
> <System>
> <Provider Name="sshd" />
> <EventID Qualifiers="0">0</EventID>
> <Level>2</Level>
> <Task>0</Task>
> <Keywords>0x80000000000000</Keywords>
> <TimeCreated SystemTime="2020-09-14T06:30:27.000000000Z" />
> <EventRecordID>2427843</EventRecordID>
> <Channel>Application</Channel>
> <Computer> hostname </Computer>
> <Security UserID="S-1-5-18" />
> </System>
> <EventData>
> <Data>sshd: PID 1622: error: ioctl(TIOCSCTTY): Operation not permitted</Data>
> </EventData>
> </Event>
>
> -------------- End of Entries ------------------
What does the following command say?
cygrunsrv -V -L
--
Takashi Yano <takashi.yano@nifty.ne.jp>
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2020-09-27 4:35 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-14 8:18 Cygwin 3.1.5, 3.1.6 and 3.1.7 builds reporting tty errors with OpenSSH Services in indows Event Logs Peter Board
2020-09-15 16:22 ` Stephen Carrier
2020-09-15 23:46 ` Peter Board
2020-09-17 16:16 ` Stephen Carrier
2020-09-17 16:51 ` Takashi Yano
[not found] ` <PSXP216MB03268C87FE0C80D06B7A79E99A3E0@PSXP216MB0326.KORP216.PROD.OUTLOOK.COM>
2020-09-18 0:10 ` Takashi Yano
2020-09-18 1:44 ` Peter Board
2020-09-19 1:18 ` Takashi Yano
2020-09-23 5:45 ` Peter Board
2020-09-24 11:21 ` Takashi Yano
2020-09-24 23:51 ` Peter Board
2020-09-27 4:25 ` Andrey Repin
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