Changes in RHEL 8
RHEL 8 changes sendmail deprecated!
Archive of posts filed under the linux category.
Awesome Shell
A curated list of awesome command-line frameworks, toolkits, guides and gizmos.
Installing rust cargo packages on aarch64 armbian linux
Your /tmp partition (which is where the build will default to) probably doesn’t have enough room as it’s a 512mb tmpfs mount. Set CARGO_TARGET_DIR environment variable to a spacious directory
Minimalist Linux Desktop
Even though I’ve mostly converted to GNOME (on a fairly juicy machine at least), this article covers some interesting tools.
Disable fsync!
libeatmydata is a small LD_PRELOAD library designed to (transparently) disable fsync (and friends, like open(O_SYNC)). This has two side-effects: making software that writes data safely to disk a lot quicker and making this software no longer crash safe. DO NOT use libeatmydata on software where you care about what it stores. It’s called libEAT-MY-DATA for …
Monitor mail queue with filter
check_mailq_filter – an Icinga / Nagios postfix mail queue monitor with a filter (include or exclude mails matching a pattern). So to exclude facebook mails from your monitor you may run: check_mailq_filter.py -x ‘.*facebookmail.*’ While you’re here, have a look at pfqueue – a console tool for interactively viewing your postfix queue that’s a step …
Add tracking IDs to your web application
With a complex multi-tier stack with HTTP requests getting proxied it can be difficult to track a request as it goes around the system. One thing you can do is enable mod_unique_id in apache – this creates a distinct environment variable UNIQUE_ID in the web server context for each incoming request. Simply loading the module …
Continue reading ‘Add tracking IDs to your web application’ »
Cronic – A cure for Cron’s chronic email problem
Cronic is a shell script to help control the most annoying feature of cron: unwanted emailed output, or “cram” (cron spam).
Need to test java applets on Linux?
With Firefox ESR now dropping java plugin compatibility, install palemoon & link in java plugin.
Receive remote syslog in SystemD
A small python daemon to put remote syslog events in JournalD