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Introduction Sometimes a virtual machine cannot be stopped from the GUI. Resolution qm stop <number> Useful links https://bobcares.com/blog/proxmox-cant-stop-vm/  

Introduction A typical error on a PVE cluster is No Quorum error It can happen, when other machines of the cluster stop functioning. Resolution pvecm expect 1 Useful links No quorum error Definition Quorum

Introduction For some reasons Apple nurses a bug in the DNS resolver. This leads to the problem, that some FQDNs cannot be resolved correctly. The workaround is quite simple. Resolution sudo dscacheutil -flushcache sudo killall -HUP mDNSResponder

Introduction The Online Certificate Status Protocol (OCSP) is an Internet protocol used for obtaining the revocation status of an X.509 digital certificate.It is described in RFC 6960 and is on the Internet standards track. It was created as an alternative to...

Introduction System Integrity Protection (SIP) SIP protects MacOS from cyber attacks. However, it also prevents the installation of certain software. So it can become necessary to disable SIP temporarily. Boot into recovery mode Silicon M1, M2, M3 Shut do...

Introduction It is possibly to set and synchronize the time in Linux automatically through the systemd service. It's the successor of NTP daemon. In my network the mt-engine01.simmy.ch provides system time. Hence the device can change, I created an DNS alias ...

Can't lock file https://dannyda.com/2020/05/1 1/how-to-fix-proxmox-pve-cant-lock-file-var-lock-qemu-server-lock-xxx-conf-got-timeout-proxmox-cant-shutdown-virtual-machine/ manual SSH: goto /run/lock/qemu-server delete lock-xxx.conf qm unlock xxx Simple s...

Introduction For testing purposes I am using Univention with bind9. The greater goal is to use AD/SAMBA from Univention. After testing for a couple of weeks suddenly some DNS addresses do not get resolved. The same problems occurred on Zentyal. So far I coul...

Introduction Mapping of network drive seems to be a big issue. Hopefully this manual brings a little light into the fog. Requirements Any kind of network resource, that offers any kind of network share. A network resource can be: Windows Server Li...