gpgkeys: HTTP fetch error 7: couldn't connect to host
10360
Error message "sudo: unable to resolve host (none)"
28383
Failed to search for file: Failed to download gpg key for repo 'mariadb-main': Curl error (37)
121003
GPG error: The following signatures couldn't be verified because the public key is not available
152158
failed to fetch security undermined error [IP: 91.189.91.38 80] in ubuntu 20.04
45161
Google's cache is not updated for months and doesn't match "fetch as Google"
144161
Why is the /etc/hosts file not working?
21184
Running "sudo apt-get update" returns connection errors
89188
How configure SSH to connect to a host via proxy using one SSH key
151066
Failed to fetch PPA Error (Deluge)
103319
What can be the reasons of connection refused errors?
96229
'Failed to login: Invalid ip' when connecting to servers
24549
Wget and curl can work normally, but ping fails
72978
Proxy tunneling failed: Proxy Authentication RequiredUnable to establish SSL connection
45169
SSH connection problem with "Host key verification failed..." error
46283
Fetch as Google says my page is "Temporary Unreachable"
5785
'apt-get' does not work with Proxy
5877
"Failed to fetch" while updating