使用Squid部署代理缓存服务
Squid是Linux系统中最为流行的一款高性能代理服务软件,通常作为Web网站的前置缓存服务,能够代替用户向网站服务器请求页面数据并进行缓存。Squid服务配置简单、效率高、更能丰富，可以基于多种条件禁止用户访问存在威胁或不适宜的网站资源,因此可以保护企业内网的安全,提升用户的网络体验,帮助节省网络带宽.
配置Squid服务程序
首先准备两台虚拟机,一台用做Squid服务器,一台用作Squid客户端.
主机操作系统IP地址Squid服务器 RHEL7 172.16.10.20
Squid客户端 CentOS7 172.16.10.10
[root@Squid-Server ~]# ping
PING (61.135.169.121) 56(84) bytes of data.
64 bytes from 61.135.169.121 (61.135.169.121): icmp_seq=1 ttl=128 time=38.0 ms
64 bytes from 61.135.169.121 (61.135.169.121): icmp_seq=2 ttl=128 time=37.9 ms
//安装Squid服务
[root@Squid-Server ~]# yum install squid
Loaded plugins: product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
dvd | 4.1 kB 00:00:00
Resolving Dependencies
--> Running transaction check
---> Package squid.x86_64 7:3.5.20-10.el7 will be installed
--> Processing Dependency: perl(DBI) for package: 7:squid-3.5.20-10.el7.x86_64
--> Processing Dependency: perl(Digest::MD5) for package: 7:squid-3.5.20-10.el7.x86_64
--> Processing Dependency: squid-migration-script for package: 7:squid-3.5.20-10.el7.x86_64
--> Processing Dependency: libecap.so.3()(64bit) for package: 7:squid-3.5.20-10.el7.x86_64
--> Running transaction check
---> Package libecap.x86_64 0:1.0.0-1.el7 will be installed
---> Package perl-DBI.x86_64 0:1.627-4.el7 will be installed
--> Processing Dependency: perl(RPC::PlClient) >= 0.2000 for package: perl-DBI-1.627-4.el7.x86_64
--> Processing Dependency: perl(RPC::PlServer) >= 0.2001 for package: perl-DBI-1.627-4.el7.x86_64
---> Package perl-Digest-MD5.x86_64 0:2.52-3.el7 will be installed
--> Processing Dependency: perl(Digest::base) >= 1.00 for package: perl-Digest-MD5-2.52-3.el7.x86_64
---> Package squid-migration-script.x86_64 7:3.5.20-10.el7 will be installed
--> Running transaction check
---> Package perl-Digest.noarch 0:1.17-245.el7 will be installed
---> Package perl-PlRPC.noarch 0:0.2020-14.el7 will be installed
--> Processing Dependency: perl(Net::Daemon) >= 0.13 for package: perl-PlRPC-0.2020-14.el7.noarch
--> Processing Dependency: perl(Compress::Zlib) for package: perl-PlRPC-0.2020-14.el7.noarch
--> Processing Dependency: perl(Net::Daemon::Log) for package: perl-PlRPC-0.2020-14.el7.noarch
--> Processing Dependency: perl(Net::Daemon::Test) for package: perl-PlRPC-0.2020-14.el7.noarch
--> Running transaction check
---> Package perl-IO-Compress.noarch 0:2.061-2.el7 will be installed
--> Processing Dependency: perl(Compress::Raw::Bzip2) >= 2.061 for package: perl-IO-Compress-2.061-2.el7.noarch
--> Processing Dependency: perl(Compress::Raw::Zlib) >= 2.061 for package: perl-IO-Compress-2.061-2.el7.noarch
---> Package perl-Net-Daemon.noarch 0:0.48-5.el7 will be installed
--> Running transaction check
---> Package perl-Compress-Raw-Bzip2.x86_64 0:2.061-3.el7 will be installed
---> Package perl-Compress-Raw-Zlib.x86_64 1:2.061-4.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==========================================================================================
Package Arch Version Repository Size
==========================================================================================
Installing:
squid x86_64 7:3.5.20-10.el7 dvd 3.1 M
Installing for dependencies:
libecap x86_64 1.0.0-1.el7 dvd 21 k
perl-Compress-Raw-Bzip2 x86_64 2.061-3.el7 dvd 32 k
perl-Compress-Raw-Zlib x86_64 1:2.061-4.el7 dvd 57 k
perl-DBI x86_64 1.627-4.el7 dvd 802 k
perl-Digest noarch 1.17-245.el7 dvd 23 k
perl-Digest-MD5 x86_64 2.52-3.el7 dvd 30 k
perl-IO-Compress noarch 2.061-2.el7 dvd 260 k
perl-Net-Daemon noarch 0.48-5.el7 dvd 51 k
perl-PlRPC noarch 0.2020-14.el7 dvd 36 k
squid-migration-script x86_64 7:3.5.20-10.el7 dvd 48 k
Transaction Summary
==========================================================================================
Install 1 Package (+10 Dependent packages)