From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yb1-xb33.google.com (mail-yb1-xb33.google.com [IPv6:2607:f8b0:4864:20::b33]) by sourceware.org (Postfix) with ESMTPS id 82AD73858C39 for ; Sat, 23 Jul 2022 22:19:09 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 82AD73858C39 Received: by mail-yb1-xb33.google.com with SMTP id 75so13747959ybf.4 for ; Sat, 23 Jul 2022 15:19:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=OJn60tuI5SkntYzPXcWHZic7+WYpEn6AWj+DlHSdIJY=; b=doBXjB+RjXNQPeglLk5ERTPlpwMiydPdnmBmFrHb036Zh/g6zq7xSZQjETWNncF5bM pkN1nR5OX6WHQKl3Bc45Xc9kivVDQkZTOFuOIvRe9WucH2zApeMVurz2ljaJT4Hh+z+d l3egbjmVnZNXxr9syjj6HAZa6veMhHv6YJCMojPnPLEYQezPaOf9ih2NmEzAgGr/2p28 8IRmmOMb99nhABz4MB5EVccA8J4npl5vvvKM1+efKfVHszd8uGmHyDpNjugZ7V6u98hw NZJ6iw6R9MXzsTJ0+iDx2M3IqEBIvlTcx32J6y4MlbXxRmOZFX9auZojqxOX4PC4Qttu eeSg== X-Gm-Message-State: AJIora/xHRvLOjdyQg1KXzRyoWiTNw+VAVX6bpfZoIDK45BiKzhFQAiT ZfqLikAlw5fqsswuCU9H/Cku59HfN4oXxt1WeIZUF7AVXzN2zQ== X-Google-Smtp-Source: AGRyM1tZ5xWo+vVArUHQ272Fm30Hdq/fy4RwKni+uS1J4QwbMaHFRTV0D4VuJP79Hkynh455H+UXVOeQtO+XnDAhYIE= X-Received: by 2002:a25:740b:0:b0:66e:e5f2:1a4c with SMTP id p11-20020a25740b000000b0066ee5f21a4cmr4747180ybc.336.1658614748701; Sat, 23 Jul 2022 15:19:08 -0700 (PDT) MIME-Version: 1.0 From: Peter Polgar Date: Sun, 24 Jul 2022 00:18:57 +0200 Message-ID: Subject: nsswitch.conf - db service for hosts To: libc-help@sourceware.org X-Spam-Status: No, score=0.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, HTML_MESSAGE, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: libc-help@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-help mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 Jul 2022 22:19:11 -0000 Hi, I am trying to use the db service in nsswitch.conf. I couldn't make it work so I decided to get some hints from the source code. A comment in test-netdb.c:310 says that "db is not implemented for hosts". Also seen in the nss/Makefile:128 that "hosts" is filtered out from the list of dbs. Do these mean that db service is not implemented for hosts? If it is implemented how can I find the path where nsswitch is looking for the db? I am on Ubuntu 20.04 LTS with GLIBC 2.31-0ubuntu9.9, libnss-db/focal,now 2.2.3pre1-6build6 Thanks! Peter