Solaris 10 - /var unnecessary files

Hello,
We are facing the following problem in our T2000 server:
Preinstalled Solaris 10, partitioned the disk in 15GB slices and everything was mounted on /. I have allocated my partitions for the Users and our tools but the default partition is almost full. I am afraid that it will stuck soon. The df -hk shows :
Filesystem size used avail capacity Mounted on
/dev/dsk/c0t0d0s0 15G 14G 384M 98% /
What i have noticed is that /var dominates the partition (about 6,7GB). Can you suggest any unnecessary files that i can delete to resolve the problem? I have seen that there are two huge files named X1msgs & X2 msgs in the /var/adm file. What are those? Can i delete them or not?
I know that the best solution is to reformat but i would like to avoid this, if possible. A partition extension can be useful but i have read that growfs cannot work on / partition. What else can i do?
Thank you in advance,
George
Edited by: gthe on Nov 17, 2009 8:05 AM

We have some Sun Solaris machines with VNC installed, set to no authentication (you need to connect in x-windows though). Running an nmap scan with these settings, nmap -sV -T4 -oN scan.nmap 192.168.1.0/24, these servers X1msgs (X2msgs, etc) in /var/adm files begin to grow quickly and end up eating
all space on the drive (even after the scan has been cancelled). The message filling up the logs is:
XserverDesktop: XserverDesktop::wakeupHandler: unable to accept new
connection: Invalid argument (22)
XserverDesktop: XserverDesktop::wakeupHandler: unable to accept new
connection: Invalid argument (22)
XserverDesktop: XserverDesktop::wakeupHandler: unable to accept new
connection: Invalid argument (22)
XserverDesktop: XserverDesktop::wakeupHandler: unable to accept new
connection: Invalid argument (22)
I've noticed this in the past doing Nessus scans, and the option that stopped this was happening was "Open port
recheck" under General plugins. Has anyone on the list seen something similar and do you know why this occurs, and
hopefully how to fix it? I figured this might be a good place to ask...

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