解决【Failed to connect to https://changelogs.ubuntu.com/meta-release. Check your Internet connection or proxy settings】

• xshell连接Ubuntu远程ip报错
  
• 将账户切换到root账户
  输入命令，切换到root账户：su root

cat /var/lib/ubuntu-release-upgrader/release-upgrade-available

• 执行【rm /var/lib/ubuntu-release-upgrader/release-upgrade-available】

rm /var/lib/ubuntu-release-upgrader/release-upgrade-available

• 删除该文件
• 执行【./usr/lib/ubuntu-release-upgrader/release-upgrade-motd】

./usr/lib/ubuntu-release-upgrader/release-upgrade-motd

• 执行【cat /var/lib/ubuntu-release-upgrader/release-upgrade-available】

cat /var/lib/ubuntu-release-upgrader/release-upgrade-available

• xshell重新连接192.168.32.127
  连接成功，并且没有报错信息