[Bug 2545] New: reverse DNS lookups shouldn't block login

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2545

            Bug ID: 2545
           Summary: reverse DNS lookups shouldn't block login
           Product: Portable OpenSSH
           Version: 6.6p1
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: sshd
          Assignee: unassigned-bugs at mindrot.org
          Reporter: bugzilla.mindrot.org at beej.org

sshd currently blocks on doing a reverse DNS lookup during login when
UseDNS is yes.  this normally doesn't present a problem, but broken or
misconfigured resolvers and servers can cause a 20-second penalty to
sshd users.

sshd should do the name resolution in a non-blocking way.

see https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/424371

-- 
You are receiving this mail because:
You are watching the assignee of the bug.