你也可以用 1 和 1 这样的值达到同样的目标。 同时，Postfix 也知道 server-one 在监听 2525 端口，而 server-two 在监听 2625 端口。 如果你正在缓存检索到的 DNS 记录，并且你动态改变 SRV 记录，那么设置一个低的生存时间（TTL）对你的记录是很重要的。 整套设置 ...

Every business needs email, but not every business wants an expensive propriety email server like Exchange Server. If you prefer a free mail server, consider Postfix, an open source email server that ...

It's easy to build redundant systems when time and money are limitless. When you have neither, or you are designing a personal system, often backups and redundancy are parts of the project you plan to ...

Configure IT Quick: Set up a basic e-mail server with Postfix as the MTA Your email has been sent For all the apparent simplicity of e-mail, setting up a mail server is one of the most difficult ...

Linux inherited many things from UNIX, but one of the most important is the idea that while small programs perform modest functions individually, together they combine to make one powerful system. You ...

The winner of Linux Journal's 2004 Editors' Choice Award for Security Tool was ClamAV, a 100% free and open-source virus scanner that runs on Linux but scans for viruses that affect a variety of ...

One of our mail servers is occasionally corrupting user mail files, and I'm not sure why. It doesn't seem to happen very often, but it shouldn't be happening at all ...

Subject does most of the work here, but I'll expand. [edit] Maybe if I had just RTFM'd harder I would've found my answers... I think this will help, but leaving the post up in case anybody else has ...