General

Proxmox – Block Incoming Traffic to Proxmox Hosts on Standard Ports Like SSH/22 and Use Non Standard Ports Instead

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Problem There are good reasons that you might want a specific service to listen to a port number that is different from the “standard” port. By standard I mean like port 22 for SSH or 80 for HTTP. Like when you have multiple webserverers running on the same host that cannot share port 80 with … Read more

Workaround for Android error „The connection pool for database ‘/data/user/0/com.android.providers.contacts/databases/contacts2.db’ has been unable to grant a connection to thread X (ContactsProviderWorker) …“

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If you are living with Android Version 4.x or Cyanogenmod 10.x then you maybe recognize problems with some apps that want to retrieve data from the contacts database (contacts2.db). Remarkable indicators concerning my phone were: Contact app did not find any contact Other apps lacked or hung Enormous battery drain The error stays for quite … Read more