I recently created a new mysql backup script. It is compatible with local mysql-servers or can be used to backup the databases of a docker container. It will save on dump every hour and holds 6 of them normally and one every day, holding a complete week. I am running this script every hour via […]
If you want to use JavaFX with OpenJDK 8 on Ubuntu you have to install an older version of OpenJFX and its dependencies. Hold the package, so they wont be upgraded on system updates. Tested on Ubuntu 18.04.2
My personal collection of often used regex expressions.
I was recently introduced to a new software called Traefik. A reverse proxy / load balancer that’s easy, dynamic, automatic, fast, full-featured, open source, production proven, provides metrics, and integrates with every major cluster technology… No wonder it’s so popular! What else to say? Sounds exactly like a tool I would love. As my setup […]
I recently started to add some security features to my asterisk server. One was adding a fail2ban jail. Because I have asterisk running inside of docker, I mounted my log folder and changed fail2ban (installed on my docker host itself) to use the message file (in my case: /opt/asterisk/log/messages) . Start by editing /etc/fail2ban/jail.d/asterisk.conf: Fail2ban […]
Wer mit Pfsense oder OPNsense seine Firewall Zuhause oder im Betrieb betreibt und zusätzlich noch Voip Telefonie hinter dieser nutzen möchte kommt schnell auf ein kleines Problem. Die beiden Firewalls zur erhöhten Sicherheit ein System, bei dem Ausgehende Verbindungen dynamische Ports verwenden, nutzen. Dies ist SIP allerdings ein Dorn im Auge. Die schnellste Lösung ist daher, […]
Da ich selber andauernd die richtige Konfiguration der verschiedenen Provider nach lesen muss und auch öfters danach gefragt werde, beginne ich nun hier mal mit einer kleinen Sammlung. Telekom SIP-ID/Benutzer: Telefonnummer (+49…) Bildschirmname (falls vorhanden): Telefonnummer (+49…) Authentifizierungsname/Benutzername: E-Mail-Adresse z. B. name@t-online.de Passwort: Passwort SIP-Proxy: tel.t-online.de Registrar: tel.t-online.de Realm: tel.t-online.de STUN-Server: stun.t-online.de Outbound-Proxy: leer lassen oder ebenfalls […]
Because newer Ubuntu versions are using systemd for dns resolution instead of resolvconf, you need to modify your Openvpn client config a bit. Add following lines to your config (/etc/openvpn/myconnection.conf): Simply add the new update script by running: Or add the script manually: Server config To route all clients over the vpn gateway add following […]
When using a lxc container in Proxmox it (sometimes) happens that Proxmox overrides the network config of the container and applies its own. In most cases this is contraproductive and not so easy to find out. To stop this, “touch /etc/network/.pve-ignore.interfaces” to tell Proxmox to not change the network configuration.
As recommended you should add reject_sender_login_mismatch to your sender_restrictions to only allow users to send with their own address as FORM. Anyways some special cases are requiring you to login with one address, but send as another like WordPress on most php setups tries to. I created an account called relay@mydomain.de and changed some settings […]