本文详细介绍了squid2.6stable12+clamav+havp搭建防毒代理。
squid 2.6stable12 的安装
useradd squid
./configure --prefix=/opt/squid --enable-async-io=40 --enable-storeio="aufs,coss,diskd,ufs" --enable-useragent-log --enable-referer-log --enable-kill-parent-hack --enable-forward-log --enable-snmp --enable-cache-digests --enable-default-err-language=Simplify_Chinese --enable-poll --enable-removal-policies="heap,lru" --enable-large-cache-files --disable-internal-dns --enable-x-accelerator-vary --enable-follow-x-forwarded-for --with-large-files --disable-ident-lookups --enable-underscore --disable-arp-acl --with-maxfd=65500 |
make && make install
cd /opt/squid mkdir cache1 cache1 chown -R squid.squid cache1 cache2 var |
squid.conf的内容
http_port 3128 cache_mem 100 MB cache_swap_low 75 cache_swap_high 98 emulate_httpd_log on logformat combined %>a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs % |
安裝 Clam AntiVirus
首先从http://www.clamav.net/下载clamav0.90包
useradd clamav ./configure make make install |
注:安装过程中有可能会出现zlib版本不够的情况,请去http://www.zlib.net/下载最新的zlib进行安装
安装过程:
./configure make make install |
安裝 HAVP
从http://www.server-side.de/download.htm下载havp 0.86的包
useradd havp ./configure make make install chown -R havp.havp /var/log/havp /var/tmp/havp /var/run/havp vi /usr/local/etc/havp/havp.config |
### 注释以下这行
#REMOVETHISLINE deleteme |
### ClamAV Library Scanner (libclamav) → 由 HAVP 直接取用 ClamAV 的病毒资料库
ENABLECLAMLIB true CLAMDBDIR /var/lib/clamav |
### ClamAV Socket Scanner (clamd) → 交由 clamd 扫毒 (须先启动 clamd), 以上两者择一使用即可,我使用的上面那种模式)
ENABLECLAMD true CLAMDSOCKET /tmp/clamd |
其他效能相关的设定:
### 理論上越多的執行緒效能效能越好, 但仍需視伺服器資源而定
SERVERNUMBER 40 MAXSERVERS 200 |
### 只記錄 error log. 較少的 Log 記錄可減輕伺服器負擔
LOGLEVEL 0 |
### 不對圖片檔掃毒, 可減輕 CPU 負擔
SCANIMAGES false |
### 这个是havp的监听端口,默认是8080,因为8080是tomcat的默认端口,所以我改成3129了,
PORT=3129 |
挂载独立磁盘区 /var/tmp/havp (一定要加上 -o mand 參數)
mount -o mand /dev/hda3 /var/tmp/havp |
如果沒有多餘的 device 可以掛載, 可參考以下兩種方法:
a. 用記憶體建立虛擬磁碟
mkfs -t ext2 /dev/ram0 8192 (建立 8MB RAM Disk) mount -o mand /dev/ram0 /var/tmp/havp |
b. 使用硬碟空間建立虛擬磁碟
dd if=/dev/zero of=/root/havp_tmp.img bs=128K count=1 seek=1024 (建立 128MB Virtual Disk) mkfs.ext2 /root/havp_tmp.img mount -o loop,mand /root/havp_tmp.img /var/tmp/havp |
ps. HAVP 可扫描的档案大小将受限于这里所挂载的磁盘空間
更新 shared libraries 资料库 (for ClamAV)
vi /etc/ld.so.conf --> 加入: /usr/local/lib ldconfig |
启动 HAVP
/usr/local/sbin/havp & squid和havp的捆绑 |
squid和havp的捆绑
编辑squid.conf文件
加入如下两行
cache_peer 127.0.0.1 parent 3129 0 no-query no-digest no-netdb-exchange default cache_peer_access 127.0.0.1 allow all |
到目前位置squid+clamav+havp就已经配置完成了
使用squid做代理然后去http://www.eicar.org/anti_virus_test_file.htm这个网站进行测试吧
HAVP 會直接使用 ClamAV 的 Library, 所以 ClamAV 的服務是不需要啟動的.
您只要使用 ClamAV 的 freshclam 來更新 ClamAV 的病毒碼就行了,
方法如下:
1. 以 crontab 排程: 0 0 * * * /usr/local/bin/freshclam --verbose(每天午夜更新病毒碼)
Clamav升级配置文件
vi /usr/local/clamav/etc/freshclam.conf ## ## Example config file for freshclam ## Please read the clamav.conf(5) manual before editing this file. ## This file may be optionally merged with clamav.conf. ## # You can change the default database directory here. #DatabaseDirectory /var/lib/clamav # Path to the log file (make sure it has proper permissions) UpdateLogFile /var/log/freshclam.log # Enable verbose logging. LogVerbose # Use system logger (can work together with UpdateLogFile). LogSyslog # By default when freshclam is started by root it drops privileges and # switches to the "clamav" user. You can change this behaviour here. #DatabaseOwner clamav # The main database mirror is database.clamav.net (this is a round-robin # DNS that points to many mirrors on the world) and in most cases you # SHOULD NOT change it. DatabaseMirror database.clamav.net # How many attempts to make before giving up. MaxAttempts 3 # How often check for a new database. We suggest checking for it every # two hours. Checks 12 # Proxy settings #HTTPProxyServer myproxy.com #HTTPProxyPort 1234 #HTTPProxyUsername myusername #HTTPProxyPassword mypass # Send the RELOAD command to clamd. #NotifyClamd [/optional/config/file/path] # Run command after database update. #OnUpdateExecute command # Run command if database update failed. #OnErrorExecute command |
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