sudo apt -o Acquire::ForceIPv4=true update
Ign:1 http://http.kali.org/kali kali-rolling InRelease
Ign:1 http://http.kali.org/kali kali-rolling InRelease
Ign:1 http://http.kali.org/kali kali-rolling InRelease
Err:1 http://http.kali.org/kali kali-rolling InRelease
Could not connect to http.kali.org:80 (54.39.128.230). - connect (111: Connection refused)
Unable to connect to http.kali.org:http:
All packages are up to date.
Warning: Failed to fetch http://http.kali.org/kali/dists/kali-rolling/InRelease Unable to connect to http.kali.org:http:
Warning: Some index files failed to download. They have been ignored, or old ones used instead.