CentOS 6.5上安装squid 3.0

一、准备工作

[root@squid ~]# iptables -L -n

Chain INPUT (policy ACCEPT)

target     prot opt source               destination         


Chain FORWARD (policy ACCEPT)

target     prot opt source               destination         


Chain OUTPUT (policy ACCEPT)

target     prot opt source               destination         

[root@squid ~]# getenforce

Disabled

[root@squid ~]# hostname

squid.contoso.com

[root@squid ~]# crontab -l

0 * * * * /usr/sbin/ntpdate   210.72.145.44 64.147.116.229 time.nist.gov

[root@squid ~]# yum -y install gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb krb5-devel libidn libidn-devel openssl openssl-devel make gcc-c++ cmake bison-devel ncurses-devel

二、编译安装squid

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mkdir -p /opt/tools
cd /opt/tools/
wget http://www.squid-cache.org/Versions/v3/3.0/squid-3.0.STABLE20.tar .gz
tar -zxf squid-3.0.STABLE20.tar.gz 
cd squid-3.0.STABLE20
 
./configure  --prefix=/usr/local/squid \
--enable-async-io=100 \
--with-pthreads \
--enable-storeio="aufs,diskd,ufs" \
--enable-removal-policies="heap,lru" \
--enable-icmp \
--enable-delay-pools \
--enable-useragent-log \
--enable-referer-log \
--enable-kill-parent-hack \
--enable-cachemgr-hostname=localhost \
--enable-arp-acl \
--enable-default-err-language=English \
--enable-err-languages="Simplify_Chinese English" \
--disable-poll \
--disable-wccp \
--disable-wccpv2 \
--disable-ident-lookups \
--disable-internal-dns \
--enable-basic-auth-helpers="NCSA" \
--enable-stacktrace \
--with-large-files \
--disable-mempools \
--with-filedescriptors=64000 \
--enable-ssl \
--enable-x-accelerator-vary \
--disable-snmp \
--with-aio \
--enable-linux-netfilter \
--enable-linux-tproxy
 
make
make install

三、配置squid

useradd -s /sbin/nologin -M squid   #创建squid用户

cd /usr/local/squid/etc/

[root@squid etc]# tree -d -L 2 /usr/local/squid  #安装完squid之后默认创建的目录

/usr/local/squid

├── bin

├── etc

├── libexec

├── sbin

├── share

│   ├── errors

│   ├── icons

│   └── man

└── var

    └── logs


10 directories

squid安装后的目录说明:

          sbin/squid: squid的主程序

          bin: bin目录包含对所有用户可用的程序

          bin/RunCache: RunCache是一个shell脚本,可以用它来启动squid。假如squid死掉,该脚本自动重启它,除非它检测到经常的重启。

          bin/RunAccel: RunAccel与RunCache几乎一致,唯一的不同是它增加了一个命令行参数,告诉squid在哪里侦听HTTP请求。

          bin/squidclient: squidclient是个简单的HTTP客户端程序,可以用它来测试squid。它也有一些特殊功能,用来对运行的squid进程发起管理请求。

          libexec:libexec目录包含了辅助程序,有一些命令无法正常的启动。然而,这些程序通常被其他程序启动。

          libexec/unlinkd:unlinkd是一个辅助程序,它从cache目录里删除文件。

          libexec/cachemgr.cgi:cachemgr.cgi是squid管理功能的CGI接口。要使用它需要把它拷贝到你的WEB服务器的cgi-bin目录。

          libexec/diskd(optional):如果指定了--enable-storeio=diskd,才能看到它

          libexec/pinger(optional):如果指定了--enable-icmp,才能看到它

          etc:etc目录包含了squid的配置文件

          etc/squid.conf:这是squid的主配置文件

          var: var目录包含了不是很重要的和经常变化的文件,这些文件不必正常的备份它们。

          var/logs:该目录是squid不同日志文件的默认位置,当你第一次安装squid时,它是空的。一旦squid开始运行,你能在这里看到名字为access.log,cache.log和store.log这样的文件。

          var/cache:假如你不在squid.conf文件里指定,这是默认的缓存目录(cache_dir)。

[root@squid etc]# diff squid.conf.default squid.conf   #默认情况下就有一个squid.conf的备份

[root@squid etc]# vi squid.conf

[root@squid etc]# diff squid.conf.default squid.conf

1710c1710

< # cache_dir ufs /usr/local/squid/var/cache 100 16 256

---

> cache_dir ufs /usr/local/squid/var/cache 100 16 256  #取消cache_dir的注释

1889c1889

< # cache_log /usr/local/squid/var/logs/cache.log

---

> cache_log /usr/local/squid/var/logs/cache.log   #启用cache_log

1899c1899

< # cache_store_log /usr/local/squid/var/logs/store.log

---

> cache_store_log /usr/local/squid/var/logs/store.log   #启用cache_store_log

2912c2912

< # cache_mgr webmaster

---

> cache_mgr admin@contoso.com    #设置cache管理员邮箱

2941c2941

< # cache_effective_user nobody

---

> cache_effective_user squid     #设置squid用户

2961a2962

> cache_effective_group squid    #设置squid组

2977a2979

> visible_hostname  cache1.contoso.com  #设置可见的主机名,如果不设置会报错

[root@squid etc]# chown -R squid:squid /usr/local/squid/var/logs

[root@squid etc]# /usr/local/squid/sbin/squid -k parse  #测试squid的配置文件语法是否正确

2016/10/15 09:09:01| Processing Configuration File: /usr/local/squid/etc/squid.conf (depth 0)

2016/10/15 09:09:01| Initializing https proxy context

# 上面的结果说明配置文件正确

[root@squid etc]# chown -R squid:squid /usr/local/squid/var/

[root@squid etc]# /usr/local/squid/sbin/squid -z   #对cache目录进行初始化

2016/10/15 09:13:14| Creating Swap Directories

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/00

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/01

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/02

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/03

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/04

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/05

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/06

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/07

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/08

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/09

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/0A

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/0B

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/0C

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/0D

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/0E

2016/10/15 09:13:14| Making directories in /usr/local/squid/var/cache/0F

下面看一下初始化的结果:

[root@squid etc]# ll /usr/local/squid/var/cache/

total 64

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 00

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 01

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 02

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 03

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 04

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 05

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 06

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 07

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 08

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 09

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 0A

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 0B

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 0C

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 0D

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 0E

drwxr-x--- 258 squid squid 4096 Oct 15 09:13 0F

[root@squid ~]# ls /usr/local/squid/var/cache/00/

00  0C  18  24  30  3C  48  54  60  6C  78  84  90  9C  A8  B4  C0  CC  D8  E4  F0  FC

01  0D  19  25  31  3D  49  55  61  6D  79  85  91  9D  A9  B5  C1  CD  D9  E5  F1  FD

02  0E  1A  26  32  3E  4A  56  62  6E  7A  86  92  9E  AA  B6  C2  CE  DA  E6  F2  FE

03  0F  1B  27  33  3F  4B  57  63  6F  7B  87  93  9F  AB  B7  C3  CF  DB  E7  F3  FF

04  10  1C  28  34  40  4C  58  64  70  7C  88  94  A0  AC  B8  C4  D0  DC  E8  F4

05  11  1D  29  35  41  4D  59  65  71  7D  89  95  A1  AD  B9  C5  D1  DD  E9  F5

06  12  1E  2A  36  42  4E  5A  66  72  7E  8A  96  A2  AE  BA  C6  D2  DE  EA  F6

07  13  1F  2B  37  43  4F  5B  67  73  7F  8B  97  A3  AF  BB  C7  D3  DF  EB  F7

08  14  20  2C  38  44  50  5C  68  74  80  8C  98  A4  B0  BC  C8  D4  E0  EC  F8

09  15  21  2D  39  45  51  5D  69  75  81  8D  99  A5  B1  BD  C9  D5  E1  ED  F9

0A  16  22  2E  3A  46  52  5E  6A  76  82  8E  9A  A6  B2  BE  CA  D6  E2  EE  FA

0B  17  23  2F  3B  47  53  5F  6B  77  83  8F  9B  A7  B3  BF  CB  D7  E3  EF  FB

[root@squid ~]# ls /usr/local/squid/var/cache/00/ |wc -l

256

也就是根据在squid.conf文件配置的cache_dir ufs /usr/local/squid/var/cache 100 16 256,一共在cache_dir中生成16个目录,每个目录下又生成256个目录。

下面启动squid:

[root@squid etc]# /usr/local/squid/sbin/squid -N -d1  #启动squid(前台启动)

2016/10/15 09:15:14| Starting Squid Cache version 3.0.STABLE20 for x86_64-unknown-linux-gnu...

2016/10/15 09:15:14| Process ID 21815

2016/10/15 09:15:14| With 64000 file descriptors available

2016/10/15 09:15:14| Performing DNS Tests...

2016/10/15 09:15:14| Successful DNS name lookup tests...

2016/10/15 09:15:14| helperOpenServers: Starting 5/5 'dnsserver' processes

2016/10/15 09:15:14| User-Agent logging is disabled.

2016/10/15 09:15:14| Referer logging is disabled.

2016/10/15 09:15:14| Unlinkd pipe opened on FD 14

2016/10/15 09:15:14| Swap maxSize 102400 + 8192 KB, estimated 8507 objects

2016/10/15 09:15:14| Target number of buckets: 425

2016/10/15 09:15:14| Using 8192 Store buckets

2016/10/15 09:15:14| Max Mem  size: 8192 KB

2016/10/15 09:15:14| Max Swap size: 102400 KB

2016/10/15 09:15:14| Rebuilding storage in /usr/local/squid/var/cache (DIRTY)

2016/10/15 09:15:14| Using Least Load store dir selection

2016/10/15 09:15:14| Set Current Directory to /usr/local/squid/var/cache

2016/10/15 09:15:14| Loaded Icons.

2016/10/15 09:15:14| Accepting  HTTP connections at 0.0.0.0, port 3128, FD 15.

2016/10/15 09:15:14| Accepting ICP messages at 0.0.0.0, port 3130, FD 16.

2016/10/15 09:15:14| HTCP Disabled.

2016/10/15 09:15:14| Pinger socket opened on FD 18

2016/10/15 09:15:14| Ready to serve requests.

2016/10/15 09:15:15| Done scanning /usr/local/squid/var/cache swaplog (0 entries)

2016/10/15 09:15:15| Finished rebuilding storage from disk.

2016/10/15 09:15:15|         0 Entries scanned

2016/10/15 09:15:15|         0 Invalid entries.

2016/10/15 09:15:15|         0 With invalid flags.

2016/10/15 09:15:15|         0 Objects loaded.

2016/10/15 09:15:15|         0 Objects expired.

2016/10/15 09:15:15|         0 Objects cancelled.

2016/10/15 09:15:15|         0 Duplicate URLs purged.

2016/10/15 09:15:15|         0 Swapfile *es avoided.

2016/10/15 09:15:15|   Took 0.99 seconds (  0.00 objects/sec).

2016/10/15 09:15:15| Beginning Validation Procedure

2016/10/15 09:15:15|   Completed Validation Procedure

2016/10/15 09:15:15|   Validated 25 Entries

2016/10/15 09:15:15|   store_swap_size = 0

2016/10/15 09:15:15| storeLateRelease: released 0 objects

2016/10/15 09:55:14| NETDB state saved; 0 entries, 0 msec

2016/10/15 10:36:54| NETDB state saved; 0 entries, 0 msec

查看一下监听端口:

[root@squid ~]# netstat -tunlp|grep squid

tcp        0      0 0.0.0.0:3128                0.0.0.0:*                   LISTEN      21815/squid         

udp        0      0 0.0.0.0:3130                0.0.0.0:*                               21815/squid         

[root@squid ~]# lsof -i :3128

COMMAND   PID  USER   FD   TYPE DEVICE SIZE/OFF NODE NAME

squid   21815 squid   15u  IPv4  36097      0t0  TCP *:squid (LISTEN)

四、简单的测试

由于上面的配置只是简单的一个正向代理的配置,所以这里使用IE浏览器进行代理连接测试。

CentOS 6.5上安装squid 3.0

首先,打开IE浏览器的浏览器选项,在连接选项卡中点击局域网设置。

CentOS 6.5上安装squid 3.0

在代理服务器中输入squid服务器的IP和端口,确定,然后打开百度进行刷新。


为了确定是否是从squid代理进行浏览网页,我清空了squid的access.log,然后再进行跟踪,下面是详细的日志信息:

[root@squid ~]# > /usr/local/squid/var/logs/access.log 

[root@squid ~]# tail -f /usr/local/squid/var/logs/access.log 

1476545163.478    214 192.168.49.1 TCP_MISS/200 48583 CONNECT www.baidu.com:443 - DIRECT/14.215.177.38 -

1476545163.545     69 192.168.49.1 TCP_MISS/200 12924 CONNECT ss0.baidu.com:443 - DIRECT/119.146.74.33 -

1476545163.547     74 192.168.49.1 TCP_MISS/200 12252 CONNECT ss2.baidu.com:443 - DIRECT/119.146.74.33 -

1476545163.613    131 192.168.49.1 TCP_MISS/200 618 CONNECT ss0.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545163.635    161 192.168.49.1 TCP_MISS/200 1151 CONNECT ss0.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545163.636    163 192.168.49.1 TCP_MISS/200 1135 CONNECT ss0.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545163.751    277 192.168.49.1 TCP_MISS/200 1103 CONNECT ss0.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545164.094    622 192.168.49.1 TCP_MISS/200 1087 CONNECT ss0.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545164.094    618 192.168.49.1 TCP_MISS/200 1055 CONNECT ss0.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545164.094    622 192.168.49.1 TCP_MISS/200 1524 CONNECT ss0.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545164.095    480 192.168.49.1 TCP_MISS/200 1684 CONNECT ss1.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545164.095    460 192.168.49.1 TCP_MISS/200 3139 CONNECT ss1.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545164.444    107 192.168.49.1 TCP_MISS/200 634 CONNECT sp3.baidu.com:443 - DIRECT/14.215.177.37 -

1476545223.537  60061 192.168.49.1 TCP_MISS/200 15152 CONNECT ss1.baidu.com:443 - DIRECT/119.146.74.33 -

1476545223.549  60076 192.168.49.1 TCP_MISS/200 1156 CONNECT ss0.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545223.555  60079 192.168.49.1 TCP_MISS/200 9479 CONNECT ss1.baidu.com:443 - DIRECT/119.146.74.33 -

1476545223.738  60100 192.168.49.1 TCP_MISS/200 2238 CONNECT ss1.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545224.154  60606 192.168.49.1 TCP_MISS/200 1625 CONNECT ss0.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545224.154  60606 192.168.49.1 TCP_MISS/200 1657 CONNECT ss0.bdstatic.com:443 - DIRECT/119.146.74.32 -

1476545224.376  60236 192.168.49.1 TCP_MISS/200 25575 CONNECT www.baidu.com:443 - DIRECT/14.215.177.37 -

1476545224.437  60109 192.168.49.1 TCP_MISS/200 953 CONNECT www.baidu.com:443 - DIRECT/14.215.177.38 -

1476545258.936  95184 192.168.49.1 TCP_MISS/200 3736 CONNECT sp0.baidu.com:443 - DIRECT/14.215.177.38 -

1476545258.994  78103 192.168.49.1 TCP_MISS/200 1742 CONNECT sp1.baidu.com:443 - DIRECT/14.215.177.37 -

五、其他

把squid命令路径添加到系统环境变量:

echo 'PATH=/usr/local/squid/sbin:/usr/local/squid/bin:$PATH' >> /etc/profile

source /etc/profile

让squid在后台运行:

/usr/local/squid/sbin/squid -D

将squid添加到开机启动:

echo '/usr/local/squid/sbin/squid -D' >>/etc/rc.local

squid启动脚本:

#!/bin/bash

# chkconfig: 345 88 14

# description: squid Daemon


case "$1" in

     start)

         /usr/local/squid/sbin/squid -D 

         ;;

 stop)   /usr/local/squid/sbin/squid -k shutdown 

         ;;

 restart)

         /usr/local/squid/sbin/squid -k reconfigure

 ;;

 parse)

         /usr/local/squid/sbin/squid -k parse

 ;;

 check)

         /usr/local/squid/sbin/squid -k check

 ;;

 *)

         echo "Usage: $0 start|stop|restart|check|parse"

             ;;

esac

配置squid日志轮询:

/usr/local/squid/sbin/squid -k rotate

配置squid日志切割:

1)添加定时任务:

0 0 * * *  /bin/sh   /opt/tools/rotate_squid.sh >/dev/null 2>&1

2)rotate_squid.sh脚本的内容如下:

cd /usr/local/squid/var/logs

[ -f access.log ] && mv access.log access_$(date +%F).log

/usr/local/squid/sbin/squid -k rotate




本文转自 jerry1111111 51CTO博客,原文链接:http://blog.51cto.com/jerry12356/1862283,如需转载请自行联系原作者
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