bugzilla-daemon at mindrot
Sep 18, 2003, 10:05 AM
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[Bug 682] UseDNS option name can be inaccurate if alternative name service is in use
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http://bugzilla.mindrot.org/show_bug.cgi?id=682
Summary: UseDNS option name can be inaccurate if alternative name
service is in use
Product: Portable OpenSSH
Version: 3.7.1p1
Platform: All
OS/Version: All
Status: NEW
Severity: trivial
Priority: P5
Component: sshd
AssignedTo: openssh-bugs [at] mindrot
ReportedBy: djast [at] cs
The UseDNS option causes the OpenSSH daemon to perform a lookup of the remote
hostname (via getnameinfo() and/or getaddrinfo()) in certain appropriate
circumstances. Although this is typically a DNS lookup, these routines could be
using a different name service such as /etc/hosts or NIS/NIS+. In such cases,
the name of the option is misleading.
Moreover, there are some diagnostics within canohost.c which assume that
getnameinfo() is using DNS (e.g., "Nasty PTR record...")
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[Bug 682] UseDNS option name can be inaccurate if alternative name service is in use