https://wiki.ismus.net/ 2026-05-05T12:28:10+00:00 https://wiki.ismus.net/ https://wiki.ismus.net/_media/wiki/dokuwiki.svg text/html 2021-03-27T14:04:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/apache2reverseproxy?rev=1616853854&do=diff ReverseProxy on Apache2 Server To a Subpath This creates a subpath behind the domain of your server. For example https://ismus.net/gitea. (source) * In /etc/apache2/conf-available create a fitting .conf-file for your service. Here e.g. for gitea <cli> <Location /gitea> text/html 2021-07-18T16:08:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/bootubuntuafterrestore?rev=1626624480&do=diff Make Ubuntu Boot Again! When I restored my full-disk encrypted system with TimeShift lately it didn't boot after the restoration process. Precisely it could not find my encrypted logical volume that contains the Ubuntu 18.04. And so I received just the <cli> WARNING: Failed to connect to lvmetad. </cli> text/html 2021-03-27T13:41:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/briefmarkendrucken?rev=1616852476&do=diff Briefmarken über den Labeldrucker kaufen online kaufen und drucken eFiliale der DeutschePost Arvid Bauer erklärt auf seinem Blog sehr schön, wie sich mit dem Brother QL-500 Labeldrucker Briefmarken kaufen und drucken lassen. Beim Kauf auf <https://shop.deutschepost.de> ist darauf zu achten, während des Bestellvorgangs, das passende Labelformat für das auszugebende PDF auszuwä text/html 2021-03-27T13:33:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/brotherql500?rev=1616852025&do=diff Brother QL-500 Label Printer * Don't !!! add the brother QL-500 with the default UI of your Ubuntu Linux 18.04 !!! * Use https://localhost:631/ Really! Do this! * You absolutely don't have to install the cupswrapper or lpr drivers from support.brot text/html 2021-03-27T14:43:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/duplicitycache?rev=1616856190&do=diff Duplicity How to prevent your root system from running full when using duplicity for regular backups I recently experienced a nasty problem while backing up data from my new Synology NAS. Suddenly the NAS refused me when logging into the web interface with a message that text/html 2021-03-27T14:05:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/emojisindinoim?rev=1616853935&do=diff How to use emojis in dino.im xmpp client dino.im uses the Gnome builtin emoji support (source). So you may either: * use the context dialogue in the input field by right-clicking * or much better: Use the key shortcut Ctrl+. to open it! In the automatically focused text/html 2024-06-25T11:51:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/hassle_with_rootless_docker_on_a_debian_bookworm_based_raspberrypi_4b?rev=1719316286&do=diff Das Rumgewürge mit Rootless Docker auf einem RaspberryPi 4 Verwendet als OS wird DietPi auf Debian Bookworm (12) Basis. Ziele * Headless Server mit Rootless Docker. * Unprivileged User docker * mit gocryptfs-verschlüsseltem Home-Verzeichnis * text/html 2024-01-09T00:11:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/howtoencrypthome?rev=1704759064&do=diff HowTo Encrypt Home Directory and Mount it on Login Basically follow <https://leighmcculloch.com/posts/ubuntu-encrypt-home-directory-with-gocryptfs/>. But there are some extensions I added so that mounting also works with ssh. * sudo apt install libpam-mount gocryptfs * Uncomment user_allow_other in /etc/fuse.conf * Edit /etc/security/pam text/html 2021-06-28T22:02:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/howto_build_an_own_docker_image?rev=1624917768&do=diff HowTo build a Docker Image ... for my python experiments * Use the latest ubuntu docker-image from hub.docker.com * as I need the recent libolm3 and libolm-dev * In my git repository I created * the .dockerignore file * as well as the subfolder text/html 2023-05-24T20:16:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/howto_deploy_synapse_with_multiple_workers?rev=1684959374&do=diff HowTo Deploy Synapse with Multiple Workers using docker-compose Status: Working Again (25th of May 2023) The update to v1.84.0 broke my setup today. The Upgrade-Info noticed me that there have been some changes in the configuration I missed and so I had to adapt some t text/html 2021-03-27T14:10:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/howto_get_collabora_to_work_with_nextcloud_on_a_synology_ds?rev=1616854225&do=diff Collabora Office Server on a Synology DS as Docker Host Getting a docker-based Collabora-Server running on a Synology turns out not as trivial as several instructions suggest. I tried a lot but didn't get it to work until I found these important informations. Especially some security options text/html 2023-01-15T00:19:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/howto_get_shelly_devices_working?rev=1673741953&do=diff Some Experiences With Shelly Home Automation Devices Shelly Duo & Shelly Duo RGBW As device discovery didn't work so well inside my network with the native Shelly HA integration I quickly switched to the custom integration Shelly For HASS. But still device discovery was laggy, unstable and unpredictable. I needed some experiments get it fixed. text/html 2021-03-27T14:11:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/howto_let_streaming_work_with_a_reverseproxy_on_a_seperate_machine?rev=1616854290&do=diff Funkwhale streaming with seperate Reverse Proxy I have a docker multi-container setup running on one machine but run it in a network that uses another machine to serve all services by reverse proxy them. You can perfectly use the offered apache2-config for this reverse proxy. text/html 2022-02-18T23:09:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/howto_source_env_on_a_synology?rev=1645225779&do=diff HowTo Use on a Synology As the Synology DSM uses sh as default shell instead of e.g. the bash it refuses if you want to source .env your ssh environment for example while updating a docker setup. As easy as it is I could just open a bash with bash text/html 2021-06-07T12:06:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/howto_switch_synapse_from_sqlite3_to_postgres?rev=1623067604&do=diff HowTo Switch Synapse from Sqlite3 to Postgres As I started my synapse instance with the recommended most simple setup I let it default to sqlite3 database. Now that I federate with large instances it is fastly growing and for sure slowing down everyt text/html 2024-01-03T00:09:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/how_uid_gid_cost_me_hours_while_trying_to_self_host_ntfy?rev=1704240545&do=diff Setting up using NGINX Proxy Manager as Reverse Proxy ... and how not setting UID:GID in docker-compose.yml can make you burn lifetime while "fixing" the proxy ... * If you want to setup ntfy server for self-hosting with docker and NGINX Proxy Manager as Reverse Proxy text/html 2021-03-27T13:47:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/iriunwebcam?rev=1616852874&do=diff Use your Android phone as a webcam for your PC If you don't have a webcam in reach or like to have a higher resolution than your cheap one: * Unfortunately there seems to be no open source solution by now :-( * As Windows or MacOS users you will find as usual a greater variety of applications for t text/html 2021-03-27T13:59:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/logic270?rev=1616853568&do=diff Make Logitech, Inc. Webcam c270 work again! Preface Some years ago I took a webcam from my mum as it didn't seem to work on her WindowsPC anymore - the Logitech c270. Since I didn't have such an HD cam until then I decided to give it a try on my Linux desktops. Guess w text/html 2024-10-30T14:01:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/macminiubuntunetworkfix?rev=1730296912&do=diff HowTo Fix Network Disconnect in Ubuntu on a MacMini (2012, x86) Suddenly my Ubuntu 24.04 server on an MacMini from 2012 stopped playing music over network and was completely unreachable - even over LAN and ssh. Temporary QuickFix if the machine is next to you text/html 2026-04-05T14:40:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/macosfreediskspace?rev=1775400009&do=diff MacOS stealing your disk space? Ever wondered where your notoriously rare disk space on your Apple device might be gone? If you like me come from the linux universe you might wonder - or maybe even freak out about - why the heck your admittingly small SDD is already running out of space w text/html 2021-03-27T13:46:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/oneplusa3003?rev=1616852781&do=diff OnePlus3 (OnePlus A3003) Updating LineageOS This applies also to other devices but is currently approved for my OnePlus3 (A3003) with LineageOS 16 and 17.1 (Android 9 and 10). Don't update with builtin Updater!!! * You may use the builtin Updater for being notified about new updates and to download images (don't forget to text/html 2021-04-30T16:56:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/soundubuntuonlydummydevice?rev=1619801778&do=diff After Upgrading to Ubuntu Focal (20.04) unfortunately the sound on my Lenove Yogabook 11e stopped working. More concrete it didn't show any of the two sound devices I found by cat /proc/asound/cards in the shell, but an Dummy Device Only It took me some searc text/html 2026-04-05T13:28:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/start?rev=1775395701&do=diff Topics Solutions I found while fiddeling with tech stuff predominantly concerning linux Hardware related problems Printers and Scanners * brother QL-500 Label Printer (en) * Briefmarken der Deutsche Post drucken (de) * Paketmarken umwandlen für den QL-500 (de) Smartphones OnePlus A3003 * Never! Really: Never! try to update device directly from Updater again! (en) Android phones as webcam No webcams to purch text/html 2023-01-07T16:11:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/touchscreendelaythinkpad?rev=1673107911&do=diff HowTo Deal with the "failed to reset device." Delay of Boot Sequence As long I use my Lenovo Thinkpad Yoga 11e I received a delay during boot sequence caused by the failure of reseting the device's touchscreen. [ 460.844999] i2c_hid_acpi i2c-ITE8386:00: failed to reset device. [ 466.989109] i2c_hid_acpi i2c-ITE8386:00: failed to reset device. [ 473.133143] i2c_hid_acpi i2c-ITE8386:00: failed to reset device. [ 479.277162] i2c_hid_acpi i2c-ITE8386:00: failed to reset device. [ 480.301632] … text/html 2021-03-27T14:41:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/v4l2loopback?rev=1616856089&do=diff v4l2loopback devices for preproduction of webcam streams Privacy and Home Office As the Covid19 pandemia leads to a certain need of adaption I had to think about managing my consultant work from my home office. After finding a way to use an unused smartp text/html 2021-03-27T14:08:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.ismus.net/xmppvideocallsnosymbol?rev=1616854139&do=diff Video/Audio Calls over XMPP Why you don't receive the Call symbol in your Mobile XMPP-App With modern mobile apps like Conversations.im or its fork Blabber.im you are able to make Audio/Video-Calls from user to user via xmpp. That requires of course that both accounts are on a properly configured xmpp-server. You can c