Want to have a WebDAV mountable temporary file storage? Supporting Windows? With the following hack overriding PROPPATCH it works for me:

server {
	...

	location /tmp {
		alias /var/www/tmp;
		autoindex on;

		if ($request_method = PROPPATCH) { # Unsupported, allways return OK.
			add_header Content-Type 'text/xml';
			return     207 '<?xml version="1.0"?><a:multistatus xmlns:a="DAV:"><a:response><a:propstat><a:status>HTTP/1.1 200 OK</a:status></a:propstat></a:response></a:multistatus>';
		}

		dav_methods PUT DELETE MKCOL COPY MOVE;
		dav_ext_methods PROPFIND OPTIONS LOCK UNLOCK;
		dav_ext_lock zone=tmp;
		dav_access user:rw group:rw all:rw;

		client_max_body_size 0;
		create_full_put_path on;
		client_body_temp_path /tmp/;

		open_file_cache off;
	}
}

Want to override a packaged jelly file? Maybe headerContent.jelly, from

core/src/main/resources/jenkins/views/JenkinsHeader/headerContent.jelly

Put it here

$EXPLODED/war/WEB-INF/classes/jenkins/views/JenkinsHeader/headerContent.jelly

in the epxloded war location.

A restart may be required.

Watching a video with Firefox on Debian Bullseye via an HDMI display and the sound keeps getting out of sync? Booting with

intel_iommu=on,igfx_off

helped me. See #867548.

Running minikube behind a proxy with podman? Setup all http_proxy environment variables and podman still won’t use your proxy?

Configuring sudo to heep this variables:

Defaults        env_keep += "http_proxy https_proxy ftp_proxy no_proxy HTTP_PROXY HTTPS_PROXY"

worked for me.

Want to trigger SCM polling for a certain job? Use

Jenkins.instance.getAllItems( Job.class ).
  find { job -> job.fullName == 'p1' }.
  each { job ->
    job.getSCMTrigger().run()
  }

Trying to boot debian buster on a Samsung nc10 with crypted root? Getting

Check that kernel supports aes-xts-plain64 cipher

when you switch initramfs to modules=dep?

Adding ecb to /etc/initramfs-tools/modules and running update-initramfs -k all -u worked for me.

Using Thunderbird, with lightning and a Nextcloud calendar? Invites are added to your calendar but no reply is sent to the organizer?

Events and Tasks > Calendar

Right Click on Calendar > Properties > Email > [X] Prefer client-side email scheduling

https://support.mozilla.org/en-US/kb/enable-email-invitations-caldav-servers-configured

Running your own docker based Collabora Online server? Getting 404s after an update with these log entries:

https://.../browser/.../cool.html?WOPISrc=...

Seems like some URLs where changed:

Seems like /loleaflet has been renamed to /browser and lool to cool in latest collabora version.

See #1904 and Proxy Settings.

Having /var/lib/mysql on a separate partition? MariaDB thinks lost+found is a Database? Create /etc/mysql/conf.d/ignore.cnf with

[mysqld]
ignore-db-dir=lost+found

Restart MariaDB and drop the database:

drop database `lost+found`;

Performing a minimal Ubuntu 20.04 install on a server? Black screen after rebooting? Switch to console via ALT+F1 and change in /etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="quiet"
GRUB_TERMINAL=console

Run update-grub and reboot.