Red Hat NETWORK PROXY 5.3.0 -, Руководство по установке

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Chapter 6. Troubleshooting
24
After subscribing a registered system to the private channel, you can also execute the command
up2date -l --showall
on the registered system and look for the packages from the private
RHN channel.
Q:
I've changed the DNS name setting of my Proxy Server, and now my client systems can't
update. How can I fix this?
A:
Run the
up2date -u
command on the client system for the name change to take effect.
Q:
How can I determine whether the clients are connecting to the Squid server?
A:
The
/var/log/squid/access.log
file logs all connections to the Squid server.
Q:
The Red Hat Update Agent on the client systems does not connect through the RHN Proxy
Server. How can I resolve this error?
A:
Make sure that the latest version of the Red Hat Update Agent is installed on the client systems.
The latest version contains features necessary to connect through an RHN Proxy Server. The
latest version can be obtained through the Red Hat Network by issuing the command
yum
update yum
as root or from
http://www.redhat.com/support/errata/
1
.
The RHN Proxy Server is an extension of Apache. See
Table 6.1, “Log Files”
for its log file
location.
Q:
My RHN Proxy Server configuration does not work. Where do I begin troubleshooting it?
A:
Make sure
/etc/sysconfig/rhn/systemid
is owned by root.apache with the permissions
0640.
Read the log files. A list is available at
Table 6.1, “Log Files”
.
6.4. General Problems
To begin troubleshooting general problems, examine the log file or files related to the component
exhibiting failures. A useful exercise is to
tail
all log files and then run
up2date --list
. You
should then examine all new log entries for potential clues.
A common issue is full disk space. An almost sure sign of this is the appearance of halted writing in
the log files. If logging stops during a write, such as mid-word, you likely have filled disks. To confirm
this, run this command and check the percentages in the Use% column:
df -h
In addition to log files, you can obtain valuable information by retrieving the status of your various
components. This can be done for the Apache Web server and Squid.
To obtain the status of the Apache Web server, run the command:
service httpd status