Servers at DMZ (such as Mail, Web, DNS,...) install services for servers. After one year, I install CSA at Web Server(operating is Solaris). Web Server is operating 32 bit. When I install CSA at Web Server, I must install some package to upgrade Web Server to 64 bit.
After 1 week, I see the server runs unstable, some services at Web server sometimes corrupt and I can't ping or test services. After 1 months, now I can't telnet to Web server, services at Web server is hang and I must use port Console to reboot Web Server.
I think the cause is the conflict among some files of Operating Solaris because when I install CSA, I must install some package at Solaris (operating 32 bit to 64 bit). Before I installed CSA at Web Server, Web Server operated stable.
If you kown, please help me to troubleshoot.