I am trying to learn about UTS namespace. I want to write some log entries from both a parent namespace and a child UTS namespace. This is for demonstration purposes, so it doesn't matter if rsyslog writes to the same log file or separate log files for each namespace. The only thing that matters is that the child namespace writes logs with a different hostname from parent namespace. But I can't seem to preserve the two different hostnames.
Here is my latest attempt:
I have two SSH terminal windows opened both with the same user.
Go to Terminal 1
me@localhost: sudo unshare --uts /bin/bash root@localhost: hostname api1 root@localhost: hostname api1 root@localhost: rsyslogd -n -i /var/run/rsyslogd-child.pid -f /etc/rsyslog.conf & root@localhost: logger foochild1 Go to Terminal 2
me@localhost: logger fooparent1 Now in my /var/log/syslog, both entries were recorded with the hostname from the child namespace:
Mar 8 22:47:12 api1 root: foochild1 Mar 8 22:47:33 api1 me: fooparent1 Can someone suggest to me a way to write log files from different namespaces while also preserving the hostname of the respective namespaces?
