If you have ever happened to execute some complex scripts using the cron system you were inevitable to discover the Linux environment was different than…
tips
Overwrite Return-Path with postfix because of “550-Sender verification is required but failed”
Sending emails from web applications like PHP may result in rejecting the emails from some servers. Fighting spam emails results in too strict filters and…
nginx proxy cache and expires directive – pass-through the origin cache control
Proxying static content sometimes requires to modify the expire directive on the proxy server, but sometimes it may just need to pass the origin expire…
Dracut boot failed with missing device – exit and continue normal booting!
This issue deserves a much more article, in fact, a straightforward tip: You may be able to continue a normal boot only by typing “exit”…
Dual 10Gbit network using PCI 2.0 (5GT/s) x4 – what is the maximum bandwidth?
Ever wondered what is the maximum bandwidth of a Dual 10Gbit LAN card, which can be reached using a dual 10Gbit ports card in a…
send access logs in json to Elasticsearch using rsyslog
Here is a simple example of how to send well-formatted JSON access logs directly to the Elasticsearch server. It is as simple as Nginx (it…
Patch and resume compilation of a failed package in Gentoo – ebuild, local repository or ctrl+Z
A dependency package failed to compile throwing error and existing the emerge of a queue with a hundred and more packages. Or worse you installed…
Simple steps to create Gentoo custom repository and add a package
Creating a custom repository would give you a chance to fast edit (ebuild) files of existing packages and drop better versions to the custom repository,…
more than the default 4 parallel processes using distributed compiling with distcc
Distributed compilation could greatly speed the build process of Gentoo packages (and not only Gentoo, of course). If you tend to use Gentoo on a…
display packages from the Gentoo emerge resume list
A quick tip and an easy hack to see the emerge resume list, which will be used by the “emerge –resume” command. There are two…