Red Hat Bugzilla – Bug 159268
RFE: Log IPv4 adresses as IPv4, not IPv6.
Last modified: 2007-11-30 17:07:18 EST
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Description of problem:
sshd logs all connection attempts as IPv6 addresses, even if they were really
May 29 18:58:06 homer sshd: Failed password for root from ::ffff:18.104.22.168 port 49674 ssh2
May 29 18:58:07 homer sshd: Invalid user admin from ::ffff:22.214.171.124
This clutters up the logs (and hence logwatch mails) and is generally unsightly.
A workaround is to add
to /etc/ssh/sshd_conf, but that disables listening to ipv6 alltogether,
which isn't really what I want.
Upstream has a patch to fix this. From the 4.1p1 changelog:
- (dtucker) [canohost.c] normalise socket addresses returned by
get_remote_hostname(). This means that IPv4 addresses in log messages
on IPv6 enabled machines will no longer be prefixed by "::ffff:" and
AllowUsers, DenyUsers, AllowGroups, DenyGroups will match IPv4-style
addresses only for 4-in-6 mapped connections, regardless of whether
or not the machine is IPv6 enabled. ok djm@
Please backport this.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. install openssh
2. ssh to it (via ipv4)
3. check out the logs.
Actual Results: encapsulated ipv4 addresses.
Expected Results: proper dotted-quad ipv4 addressses.
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*** Bug 172181 has been marked as a duplicate of this bug. ***
We have the academic site license, which doesn't include that kind of support.
(Yes, we have a bunch of systems with additional support, but this "bug" doesn't
apply to them, they're still at rhel 2.1 or 3)
I thought this kind of thing was what the "enhancement" severity was for.