Linux 上的邮件网关(杀病毒)AntiVir MailGate , 它有两种方法: 1. 直接作 mail 网关,然后利用“ 管道 ”调用 smtp 程序。支持标准的 smtp 程序: sendmail、postfix、qmail。
2. 也是作 mail 网关,在 /etc/sendmail.cf 里添加 avgatemail 选项 (这样 sendmail 在 825 端口监听),然后 再利用 825 端口转发邮件。意思是:25 即是 avmailgate 的 smtp 端口,然后它再利用 825(sendmail)端口转发邮件 ! 请注重:但是人家还是可以利用你的 825 端口 (就是利用原来的 senmail 来给你发送病毒邮件!但是,这种情况很少的。)。这时你可以用防火墙来阻止来自外部的对本机的 825 端口的连接。 在 /etc/services 里面增加: smtp-backdoor 825/tcp 修改 sendmail.cf 成: # SMTP daemon options #O DaemonPortOptions=Port=smtp,Addr=127.0.0.1, Name=MTA # 原来的。 # -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- gugong -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- # # 红帽子 V7.x V8.0 所建立的本文件默认 “只” 对 localhost 即 127.0.0.1 # 提供服务,根据以往本文件的内容,修改为: # # SMTP daemon options O DaemonPortOptions=Name=MTA, Port=smtp-backdoor O DaemonPortOptions=Port=587, Name=MSA, M=E # 若 不需要 avgatemail ,则应该是: #O DaemonPortOptions=Name=MTA #O DaemonPortOptions=Port=587, Name=MSA, M=E # 在端口 587 提供 submission 服务(MSA)。 # -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- gugong -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- 请看: 邮件网关杀除病毒后返回的报告: 一、 ********************************************************************* AntiVir Virus Alert ********************************************************************* This version of AntiVir MailGate is licensed for private and non-commercial use. ********************************************************************* AntiVir found these viruses in the following mail: Worm/Klez.E The mail was not delivered. You may force the delivery without further checking the mail using: avq --deliver=04347-536A3823 but we would not advise to do so. You should delete it with: avq --remove=04347-536A3823 For more information, please read the manual page avmailgate(8). ----------Mail-Info---------- From: winson246 To: webmaster@fruitron.com.cn Subject: Marginheight Mail-From: suscono@pub.dgnet.gd.cn Rcpt: webmaster@fruitron.com.cn Queue-Id: 04347-536A3823 Status: The mail was not delivered! ----------------------------- -----------Log-File---------- info: extracting attachment 1 to /var/tmp/av-06051-U43SFi/av-0 (encoding="quoted-printable", name="(no name)", filename="(no name)") info: extracting attachment 2 to /var/tmp/av-06051-U43SFi/av-1 (encoding="base64", name="Vebnq.pif", filename="(no name)") info: extracting attachment 3 to /var/tmp/av-06051-U43SFi/av-2 (encoding="base64", name="frame", filename="(no name)") checking file "/var/tmp/av-06051-U43SFi/av-0" checking file "/var/tmp/av-06051-U43SFi/av-1" checking file "/var/tmp/av-06051-U43SFi/av-2" ----------------------------- ********************************************************************* For more information on AntiVir please visit our web site http://www.antivir.de or http://www.hbedv.com mailto: info@antivir.de AntiVir is a registered trademark of H+BEDV Datentechnik GmbH ********************************************************************* 二、 ********************************************************************* AntiVir Virus Alert ********************************************************************* This version of AntiVir MailGate is licensed for private and non-commercial use. ********************************************************************* AntiVir found these viruses in a mail for you from winson246 : Worm/Klez.E The mail was not delivered. AntiVir MailGate prevented a virus delivery. But if you need to receive further email from winson246 , you should ask him/her to buy a professional antivirus software sUCh as AntiVir from H+BEDV Datentechnik GmbH. He/She can contact mailto:sales@hbedv.com for further information. ----------Mail-Info---------- From: winson246 To: webmaster@fruitron.com.cn Subject: Marginheight ----------------------------- ********************************************************************* For more information on AntiVir please visit our web site http://www.antivir.de or http://www.hbedv.com mailto: info@antivir.de AntiVir is a registered trademark of H+BEDV Datentechnik GmbH ********************************************************************* 自动升级病毒库后的报告: AntiVir has successfully updated itself. --> /usr/lib/AntiVir/antivir.vdf Machine: gugonghcs.fruitron.com.cn Date: 09 May 2002 Time: 10:39:18 ----------------------------- Copyright (C) 1994-2002 by H+BEDV Datentechnik GmbH. All rights reserved. For private (non-commercial) use only. 请到 : http://www.hbedv.com 下载 Linux 版本,并注册,Linux 的 版本可是免费的哟。
由于附件的后缀名限制,附加的文档的 .txt 结尾是我增加附加档案时添加上去的。
|