The relentless onslaught of spam continues to drive mail administrators up the proverbial wall. DMARC, the unofficial successor to SPF (Sender Policy Framework), holds the promise of more email legitimacy, but can it deliver? Here is how you can put DMARC to the test.
Are you ready for a better security with no performance penalty? Are you ready for a performance bump that can take you places in search engine land? In other words: now that HTTP/2 reached production-grade maturity, nothing should hold you back.
The IoT revolution will make sure that only the paranoid survive.
There are two basic ways to migrate a mail server from one machine to another: with and without service downtime.
When setting up https on an existing server, you need to provide a redirect for all those visitors arriving via http backlinks. Here is how to do this.
The rsync utility can backup files, synchronize directory trees, and much much more, both on the local machine and between two different hosts—via push and pull. Here is how to tame it.