query: Error when adding ppa repository: keyserver.ubuntu.com: Host not found
positive_passages.docid: 44313
positive_passages.text: How to run "sudo apt-get update" through proxy in commandline?
negative_passages.docid: 43425
negative_passages.text: failure to load repository information
negative_passages.docid: 139103
negative_passages.text: Is is possible to skip the confirmation step while adding a repository?
negative_passages.docid: 29534
negative_passages.text: How to enable hostname resolving in Debian?
negative_passages.docid: 119273
negative_passages.text: Code Sign error: a valid provisioning profile matching the application's Identifier ... could not be found
negative_passages.docid: 42792
negative_passages.text: Docker ppa package for Ubuntu 19.10
negative_passages.docid: 94229
negative_passages.text: How to resolve hostnames in chroot?
negative_passages.docid: 43698
negative_passages.text: How does the PPA fit into the scenario of publishing an application to the Ubuntu Software Center?
negative_passages.docid: 48418
negative_passages.text: W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available:
negative_passages.docid: 29877
negative_passages.text: How to fix "Could not open a connection to your authentication agent." error when trying to add ssh-key?
negative_passages.docid: 144161
negative_passages.text: Why is the /etc/hosts file not working?
negative_passages.docid: 87471
negative_passages.text: Can I automatically add a new host to known_hosts?
negative_passages.docid: 147540
negative_passages.text: FreeIPA : Installer not resolving domain name from hosts file
negative_passages.docid: 85988
negative_passages.text: How to set up an apt-cacher server?
negative_passages.docid: 38110
negative_passages.text: Error sudo: add-apt-repository: command not found
negative_passages.docid: 101314
negative_passages.text: Postfix warning: hostname [unknown host] does not resolve to address [unknown ip]
negative_passages.docid: 54169
negative_passages.text: How to properly update Grub in Hosted environment