Categories
debian linux sysadmin

rsyslog filtering (with loggly)

Filtering rsyslog output being sent to loggly (e.g. from an apache imfile input)

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debian linux pixelbook

First steps with a Pixelbook

So, my 2009 MacBook Pro decided to slowly die … and after dithering for about 3 years over what to buy to replace it …. I chose a Google Pixelbook (i7 variant, 500Gb NVME disk etc) (via eBay)…..

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debian linux sysadmin

Using hitch with varnish on Debian Jessie

I ended up needing to install hitch on a server recently, so the https:// traffic could be routed through Varnish (along with the existing ‘http’ stuff) for performance reasons. The server only runs WordPress sites, so there are WordPress specific things in the Varnish configuration (vcl) file below. Versions: Varnish 5.2, Hitch 1.4.4, Apache 2.4 and […]

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bash development linux

curl, jq and slightly dynamic input to a service

I keep forgetting the syntax for these two things, so there’s a chance writing it here will help me remember. Possibly of use/relevance for: elasticsearch or Debezium….

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debian email linux postfix sysadmin

postsrsd monit config

This might work to configure monit on Debian (Jessie) to monitor postsrsd. check process postsrsd matching “/usr/sbin/postsrsd” group postsrsd start program = “/etc/init.d/postsrsd start” stop program = “/etc/init.d/postsrsd stop” if failed host localhost port 10001 then restart if failed host localhost port 10002 then restart

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debian linux

Intel NUC6i7KYK with Debian Jessie

Random notes from installing Linux on it … it does just work – but ….

Categories
debian linux

compiling a vanilla kernel to a .deb

As I keep losing this…. Creating a .deb kernel package from a vanilla kernel.org kernel : wget https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.4.24.tar.xz tar -xf linux-4.4.24.tar.xz cd linux-4.4.24 cp /boot/config-whatever .config Optionally: edit and set: CONFIG_DEBUG_INFO=n to stop the *dbg* package being generated make olddefconfig make deb-pkg -j6 LOCALVERSION=-dg1

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linux

BTRFS file deduplication with bedup

Bedup is a tool that can scan and deduplicate an existing btrfs filesystem.

Categories
linux sysadmin

adventures with cgroups for resource control

What? Control Groups aka cgroups – see the docs . Resource control and monitoring. Some examples follow for throttling i/o speed(s) for a process control group (cgroup).

Categories
linux

Dell t300 – Buying an ancient server

So, one of my office servers was misbehaving – and random crashes finally tipped me over the edge. Read on a blurb of text about buying an ancient computer from ebay and some uninteresting pitfalls encountered.