You can execute systemctl --user --failed to check for failed systemd user units. But let's face it: It's...
To measure the time of your HTTP request with curl, you can use the -w (--write-out) option:
We had a strange behaviour on one of our mariadb-servers: Everyday at around midnight we saw that the root...
When changing glibc versions, it's possible to end up with corrupt indexes in PostgreSQL. Are My Indexes Affected?
When changing the glibc version, it's possible that the upgrade also includes changes to how locales work.
There are cases where we have multiple exported resources that are identical. There are nodes that provide the same services...
In Puppet, there are some differences between defined and function types when it comes to code encapsulation. In most cases...
The link contains a simple shell script to push a cleanup policy for gitlab repositories in a group.
The Oracle mysql client has an odd behavior if your server uses latin1 as default character-set-server. Command
When configuring prometheus scrape_configs, you may use relabel_configs to filter your metrics or change some fields. Your config...
Nginx is capable of forwarding a unix socket to UDP backend servers. This is quite handy for load balance syslog...
You might use screen or tmux to run a temporary command on a server which continues to run after the...
The owner of a scheduled CI/CD pipeline in GitLab will always be notified if the pipeline fails. Follow these steps...
When using many or very long entries of MIME-types that shoudl be gziped in gzip_types directives in nginx...
If you use third party APT sources you might end up with unmaintained packages after removing the external source or...
When terragrunt is relaying information to input variables it's happening via environment variables. Depending on the size of the...
If the project you're working on has, say, 39 repositories and counting in GitLab and you need all the...
If your postgres database is only accessible from inside a kubernetes cluster, e.g. if it's configured in AWS RDS...
Here's a one-liner to view base64 encoded secrets in kubernetes. Make sure you have jq installed.
There's a simple way in bolt to run commands from a file without caring about BASH escaping: # /home/user/foo.sh
In our monitoring, RabbitMQ queues like aliveness-test may show up as unresponsive, with a ping timeout after 10 seconds...
Instead of using Puppet exported resources you can use the puppetdb_query feature. This can result in more complex code...
How can I configure virtual IP's? There are two parameter to set up virtual ips in Keepalived: virtual_ipaddress...
If you get an error message like this: You have already activated some-gem 1.2.3, but your Gemfile requires some...