After I started my Zimbra server, I had alerte from my server. It told me about my CA was mismatch with my domain. This is example alert :
If you want to create new CA for your Zimbra server , you can follow these steps :
I have one server, it is installed CentOS5. After I installed Vmware Server program, I installed new Linux guest virtual machine which it is CentOS5 ,too.
I found this problem when I started it (Linux guest) about 3 days, I found it had shift time.
I try to find root cause of this problem. Ohhh I found.
I want to redirect from http to https when I type URL in browser . And this is solution :
| [root@zimbra] # su – zimbra [zimbra@zimbra] $ zmtlsctl mixed [zimbra@zimbra] $ zmcontrol stop [zimbra@zimbra] $ zmcontrol start |
Work more !! 
Yesterday, I found problem about date&time system on Linux server virtual machine on VMServer. That virtual machine has shifted time by automatic and this is example how to use command line set date&time in Linux server. Continue reading