All, I have intermittent problem of PID conflict between squid and other service. As report below, squid uses PID that also be used by tty2. Sometime it conflict with other service. I load squid from rc.local. Is it the cause of problem? Should I use another method to load Squid? Please advise Thx & Rgds, Awie ===SNIP=== root 637 0.0 0.1 1340 372 tty1 S 10:13 0:00 /sbin/mingetty tty1 root 638 0.0 0.1 1340 372 tty2 S 10:13 0:00 /sbin/mingetty tty2 ..................... ..................... ..................... root 1226 0.1 0.6 5548 1592 ? S 11:13 0:00 sshd: root@pts/0 root 1228 0.1 0.4 2080 1212 pts/0 S 11:13 0:00 -bash root 1264 0.0 0.2 2568 740 pts/0 R 11:13 0:00 ps auxww [root@Squid root]# squid 2005/10/17 11:14:15| Squid is already running! Process ID 638 [root@Squid root]# squid -k shutdown squid: ERROR: Could not send signal 15 to process 638: (1) Operation not permitted