acl SSL_ports port 443 563
acl Safe_ports port 80        # http
acl Safe_ports port 21        # ftp
acl Safe_ports port 443        # https
acl Safe_ports port 70        # gopher
acl Safe_ports port 210        # wais
acl Safe_ports port 1025-65535    # unregistered ports
acl Safe_ports port 280        # http-mgmt
acl Safe_ports port 488        # gss-http
acl Safe_ports port 591        # filemaker
acl Safe_ports port 777        # multiling http
acl CONNECT method CONNECT

[root@centos ~]# mkdir /var/cache/squid
[root@centos ~]# 
[root@centos ~]# vim /etc/squid/squid.conf
[root@centos ~]# 
[root@centos ~]# 
[root@centos ~]# 
[root@centos ~]# ls -l /var/cache/squid
total 0
[root@centos ~]# 
[root@centos ~]# 
[root@centos ~]# chown -R squid:squid /var/cache/squid
[root@centos ~]# 
[root@centos ~]# 
[root@centos ~]# service squid start
init_cache_dir /var/cache/squid... Starting squid:         [FAILED]
[root@centos ~]# 

[root@centos ~]# tail 10 /etc/squid/squid.conf|grep -v '#'
tail: cannot open `10' for reading: No such file or directory
==> /etc/squid/squid.conf <==
 
visible_hostname yourdomain.com
 
icp_port 3130
 
always_direct    allow    all
 
forwarded_for off
 
coredump_dir /var/cache/squid

[root@centos ~]# squid -z
2010/04/08 14:03:01| parseConfigFile: line 5 unrecognized: ' '
FATAL: Bungled squid.conf line 7: acl Safe_ports port 80        # http
Squid Cache (Version 2.6.STABLE21): Terminated abnormally.
[root@centos ~]# /etc/init.d/squid start
init_cache_dir /var/spool/squid... Starting squid:         [FAILED]
[root@centos ~]# 

[root@centos ~]# ls -l /var/cache/squid
ls: /var/cache/squid: No such file or directory
[root@centos ~]# ls -l /var/spool/squid
total 0