06-06-2017
Have you examined the output from dmesg which is written before the syslog daemon starts?
dmesg > somefile looks like /var/adm/messages did: normal operations then a bunch of 390400 kern messages which could have been the results of the network change when the localhost IP changed. The server was booted days ago and used the proper IP. It was in-flight days later that it did this -- on two independent servers at the same time. Each had been rebooted a day from the other after DRPC patching.
Did they DHCP somehow? No log of such and daemon is not running and there are no dhcp config files
Do they boot from local disk or is it SAN provided?
Local disk
Has anyone run sysunconfigure, which would destroy the identity of the server (hostname, network config, host lookup, etc.)
No. All the files /etc/hosts /etc/hostname.nxge0 /etc/netmasks etc untouched with old timestamps. Also bash_history doesn't show commands were entered.
Thanks
Last edited by hdatontodo; 06-06-2017 at 10:30 AM..
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LEARN ABOUT OSF1
syslog.auth
syslog.auth(4) Kernel Interfaces Manual syslog.auth(4)
NAME
syslog.auth - authorization file for accepting remote syslog messages
SYNOPSIS
# format: Each fully qualified host name on a separate line hostname.domain_name
DESCRIPTION
The /etc/syslog.auth file specifies which remote hosts are allowed to forward syslog messages to the local host. For the sake of security,
only messages coming from remote hosts listed in the local /etc/syslog.auth file will be logged by the syslogd daemon.
If the /etc/syslog.auth file does not exist, then messages coming from any host will be accepted.
Each remote host name should appear in a separate line in /etc/syslog.auth. A line started with the # character is considered as a comment
and is thus ignored.
A host name must be a complete domain name such as trout.zk3.dec.com. If a domain host name is given, it must either appear in the local
/etc/hosts file or be able to be resolved by the local name server (BIND).
Note that a host name can have at most as many characters as defined by the MAXHOSTNAMELEN constant in <sys/param.h>, although each line
in the /etc/syslog.auth file can have up to 512 characters.
The /etc/syslog.auth file must be owned by root and has a permission of 0600.
To invoke a new version of the /etc/syslog.auth file, run the following command (as the super user) to initialize the syslogd daemon: kill
-HUP `cat /var/run/syslog.pid`
EXAMPLES
The following example provides a typical authorization file: # format: Each fully qualified host name on a separate line
c3poid.rvo.dec.com r2d2id.ckt.dec.com
FILES
Location of the authorization file.
RELATED INFORMATION
Commands: syslogd(8), syslog(1)
System Administration delim off
syslog.auth(4)