Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
SlideShare a Scribd company logo

Squid file

•Download as ODT, PDF•
•

The document provides instructions for installing and configuring the Squid proxy server on CentOS/RHEL 5. It describes using yum to install Squid, configuring the squid.conf file to define ACLs for allowed internal networks, starting the Squid service, verifying port 3128 is open, and opening the port in iptables firewall.

1 of 2
Install Squid on CentOS / RHEL 5 Use yum command as follows: # yum install squid Output: Loading "installonlyn" plugin Setting up Install Process Setting up repositories Reading repository metadata in from local files Parsing package install arguments Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Package squid.i386 7:2.6.STABLE6-4.el5 set to be updated --> Running transaction check Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Installing: squid i386 7:2.6.STABLE6-4.el5 updates 1.2 M Transaction Summary ============================================================================= Install 1 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 1.2 M Is this ok [y/N]: y Downloading Packages: Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing: squid ######################### [1/1] Installed: squid.i386 7:2.6.STABLE6-4.el5 Complete! Squid Basic Configuration Squid configuration file located at /etc/squid/squid.conf. Open file using a text editor: # vi /etc/squid/squid.conf At least you need to define ACL (access control list) to work with squid. The defaults port is TCP 3128. Following example ACL allowing access from your local networks 192.168.1.0/24 and 192.168.2.0/24. Make sure you adapt to list your internal IP networks from where browsing should be allowed: acl our_networks src 192.168.1.0/24 192.168.2.0/24 http_access allow our_networks Save and close the file. Start squid proxy server:
# chkconfig squid on # /etc/init.d/squid start Output: init_cache_dir /var/spool/squid... Starting squid: . [ OK ] Verify port 3128 is open: # netstat -tulpn | grep 3128 Output: tcp 0 0 0.0.0.0:3128 0.0.0.0:* LISTEN 20653/(squid) Open TCP port 3128 Finally make sure iptables is allowing to access squid proxy server. Just open /etc/sysconfig/iptables file: # vi /etc/sysconfig/iptables Append configuration: -A RH-Firewall-1-INPUT -m state --state NEW,ESTABLISHED,RELATED -m tcp -p tcp --dport 3128 -j ACCEPT Restart iptables based firewall: # /etc/init.d/iptables restart Output: Flushing firewall rules: [ OK ] Setting chains to policy ACCEPT: filter [ OK ] Unloading iptables modules: [ OK ] Applying iptables firewall rules: [ OK ] Loading additional iptables modules: ip_conntrack_netbios_n[ OK ]

More Related Content

Squid file

  • 1. Install Squid on CentOS / RHEL 5 Use yum command as follows: # yum install squid Output: Loading "installonlyn" plugin Setting up Install Process Setting up repositories Reading repository metadata in from local files Parsing package install arguments Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Package squid.i386 7:2.6.STABLE6-4.el5 set to be updated --> Running transaction check Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Installing: squid i386 7:2.6.STABLE6-4.el5 updates 1.2 M Transaction Summary ============================================================================= Install 1 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 1.2 M Is this ok [y/N]: y Downloading Packages: Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing: squid ######################### [1/1] Installed: squid.i386 7:2.6.STABLE6-4.el5 Complete! Squid Basic Configuration Squid configuration file located at /etc/squid/squid.conf. Open file using a text editor: # vi /etc/squid/squid.conf At least you need to define ACL (access control list) to work with squid. The defaults port is TCP 3128. Following example ACL allowing access from your local networks 192.168.1.0/24 and 192.168.2.0/24. Make sure you adapt to list your internal IP networks from where browsing should be allowed: acl our_networks src 192.168.1.0/24 192.168.2.0/24 http_access allow our_networks Save and close the file. Start squid proxy server:
  • 2. # chkconfig squid on # /etc/init.d/squid start Output: init_cache_dir /var/spool/squid... Starting squid: . [ OK ] Verify port 3128 is open: # netstat -tulpn | grep 3128 Output: tcp 0 0 0.0.0.0:3128 0.0.0.0:* LISTEN 20653/(squid) Open TCP port 3128 Finally make sure iptables is allowing to access squid proxy server. Just open /etc/sysconfig/iptables file: # vi /etc/sysconfig/iptables Append configuration: -A RH-Firewall-1-INPUT -m state --state NEW,ESTABLISHED,RELATED -m tcp -p tcp --dport 3128 -j ACCEPT Restart iptables based firewall: # /etc/init.d/iptables restart Output: Flushing firewall rules: [ OK ] Setting chains to policy ACCEPT: filter [ OK ] Unloading iptables modules: [ OK ] Applying iptables firewall rules: [ OK ] Loading additional iptables modules: ip_conntrack_netbios_n[ OK ]