当我使用以下消息安装 Squid 时sudo apt-get install squid：
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package squid is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'squid' has no installation candidate
我尝试升级 55% 后失败了：
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/oneiric-backports/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.91.14 80]
我该如何解决这个问题？
答案1
Ubuntu 使用 squid3 而不是普通的 squid。
sudo apt-get install squid3