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<p><FONT class=normalfont><B><font color=blue>RH AS3.0 + SQUID + MYSQL_AUTH</font></B></FONT><BR><FONT class=smallfont color=#ff9900>2004-04-23 15:18 pm</FONT><BR><FONT class=normalfont>作者：llzqq<br>来自：Linux知识宝库<br>联系方式：无名<br><br>
<br>
安装说明：如果你的系统已经安装了SQUID，要先卸载了然后按照本文中的步骤重新安装SQUID。另外如果以前用的是IPTABLES+SQUID做的透明代理，仍然要在浏览器中进行代理服务器设置，否则SQUID不能使用MYSQL认证，关于MYSQL_AUTH的版本是这样的，0.5版的我实验了很久总不能成功，所以我用了0.6beta版的MYSQL_AUTH。<br>
<br>
一、安装SQUID和MYSQL-SERVER<br>
<br>
1.建立用户和组<br>
<br>
[root@home root]# groupadd squid<br>
[root@home root]# adduser -g squid -d /dev/null -s <br>
/sbin/nologin squid<br>
<br>
2. 安装<br>
<br>
[root@home root]# rpm –ivh mysql-server-3.23.58-1.9.i386.rpm<br>
[root@home root]# rpm -ivh  squid-2.5.STABLE3-3.3E.i386.rpm<br>
<br>
设置MYSQL的ROOT管理密码：<br>
[root@home root]# mysqladmin –u root password ******<br>
<br>
设置MSYQL和SQUID开机启动：<br>
[root@home root]# chkconfig mysqld on<br>
[root@home root]# chkconfig squid on<br>
<br>
3.配置SQUID.CONF<br>
--------------------------------------------------------<br>
http_port 3128<br>
cache_mgr llzqq@nero.3322.org<br>
error_directory /usr/share/squid/errors/Simplify_Chinese<br>
dns_nameservers 202.99.160.68 202.99.168.8<br>
visible_hostname nero.3322.org<br>
httpd_accel_uses_host_header on<br>
httpd_accel_host virtual<br>
httpd_accel_with_proxy on<br>
cache_mem 20 MB<br>
maximum_object_size 4096 KB<br>
minimum_object_size 0 KB<br>
maximum_object_size_in_memory 30 KB<br>
minimum_object_size_in_memory 0 KB<br>
cache_dir ufs /tmp 100 16 256<br>
cache_swap_low 85<br>
cache_swap_high 90<br>
httpd_accel_port 80<br>
#http_access deny all<br>
--------------------------------------------------------<br>
4.启动SQUID和MYSQL<br>
<br>
[root@home root]# service mysqld start<br>
[root@home root]# service squid start<br>
<br>
二、   译安装MYSQL_AUTH-0.6<br>
<br>
[root@home root]# tar xzpf mysql_auth-0.6beta.tar.gz<br>
[root@home root]# cd mysql_auth-0.6beta<br>
<br>
修改Makefile中的内容如下：<br>
[root@home mysql_auth-0.6beta]# vi Makefile<br>
<br>
CFLAGS = -I/usr/include/mysql -L/usr/lib/mysql<br>
$(INSTALL) -o squid -g squid -m 755 mysql_auth /usr/bin/mysql_auth<br>
$(INSTALL) -o squid -g squid -m 600 $(CONF) /etc/mysql_auth.conf<br>
$(INSTALL) -o squid -g squid -m 600 $(CONF) /etc/mysql_auth.conf.default<br>
<br>
修改src/define.h中的内容如下：<br>
[root@home mysql_auth-0.6beta]# vi +5 src/define.h<br>
<br>
#define CONFIG_FILE "/etc/mysql_auth.conf"<br>
#define DEF_MYSQLD_SOCKET "/var/lib/mysql/mysql.sock"<br>
<br>
修改src/mysql_auth.conf中的内容如下：<br>
[root@home mysql_auth-0.6beta]# vi src/mysql_auth.conf<br>
<br>
mysqld_socket   /var/lib/mysql/mysql.sock<br>
<br>
[root@home mysql_auth-0.6beta]# make<br>
[root@home mysql_auth-0.6beta]# make install<br>
<br>
创建用户数据库：<br>
[root@home mysql_auth-0.6beta]# cd scripts<br>
[root@home scripts]# mysql -u root –p****** &lt; create_script<br>
<br>
<br>
三、   测试MYSQL_AUTH<br>
<br>
1.添加一个测试用户<br>
<br>
[root@home mysql_auth-0.6beta]# mypasswd test 123456<br>
Password record ADDED succesfully.<br>
<br>
2.验证刚才建立的用户<br>
<br>
[root@home mysql_auth-0.6beta]# mysql_auth test<br>
test 123456<br>
0K<br>
<br>
3.删除一个已经建立的用户用这个命令<br>
<br>
[root@home mysql_auth-0.6beta]# mypasswd –d username<br>
Password record DELETED succesfully.<br>
<br>
四、在SQUID.CONF中增加MYSQL_AUTH认证<br>
<br>
[root@home mysql_auth-0.6beta]# vi /etc/squid/squid.conf<br>
<br>
添加下面的代码到SQUID.CONF中“TAG: acl”一节的后面<br>
<br>
auth_param basic program /usr/bin/mysql_auth<br>
auth_param basic realm Squid caching server<br>
auth_param basic children 5<br>
auth_param basic credentialsttl 2 hours<br>
acl password proxy_auth REQUIRED<br>
http_access allow password<br>
authenticate_ip_ttl 2 hours<br>
http_access deny all<br>
<br>
五、客户端设置<br>
<br>
在你浏览器的代理服务器设置中填写SQUID服务器的IP和端口：<br>
192.168.0.1:3218<br>
<br>
在你下载软件的代理服务器设置中填写SQUID服务器的IP和端口：<br>
192.168.0.1:3218<br>
<br>
六、一个简单的IPTABLES脚本<br>
<br>
eth0:to lan<br>
eth1:to adsl-modem<br>
-------------------------------------------------------------------<br>
#!/bin/bash<br>
<br>
export PATH=/sbin:/usr/sbin:/bin:/usr/bin<br>
<br>
echo 1 &gt;/proc/sys/net/ipv4/ip_forward<br>
iptables -F<br>
iptables -X<br>
iptables -Z<br>
<br>
## Allow forwarding through the internal interface<br>
iptables -A FORWARD -i eth0 -j ACCEPT<br>
iptables -A FORWARD -o eth0 -j ACCEPT<br>
iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT<br>
<br>
## Do masquerading through ppp0<br>
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE<br>
<br>
## SQUID<br>
iptables -t nat -A PREROUTING -i eth0 -p tcp -s 0/0 --dport 80 -j REDIRECT --to-ports 3128<br>
<br>
## HTTP<br>
iptables -A INPUT -i ppp0 -p tcp -s 0/0 --sport 80 -m state --state ESTABLISHED,RELATED -j ACCEPT<br>
iptables -A INPUT -i ppp0 -p tcp -s 0/0 --sport 443 -m state --state ESTABLISHED,RELATED -j ACCEPT<br>
iptables -A INPUT -i ppp0 -p tcp -d 0/0 --dport 80 -j ACCEPT<br>
iptables -A INPUT -i ppp0 -p tcp -d 0/0 --dport 443 -j ACCEPT<br>
<br>
## DNS<br>
iptables -A INPUT -i ppp0 -p udp -s 0/0 --sport 53 -m state --state ESTABLISHED -j ACCEPT<br>
iptables -A INPUT -i ppp0 -p udp -d 0/0 --dport 53 -j ACCEPT<br>
<br>
## Anything else not allowed<br>
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT<br>
iptables -A INPUT -i ppp0 -j DROP 
</FONT><br>
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