尝试更新包时发生握手错误

Question

运行时我得到以下输出sudo apt-get update：

Ign https://repo.varnish-cache.org trusty Release   
Ign https://repo.varnish-cache.org trusty/varnish-4.0 amd64 Packages/DiffIndex
Ign https://repo.varnish-cache.org trusty/varnish-4.0 i386 Packages/DiffIndex
Ign https://repo.varnish-cache.org trusty/varnish-4.0 Translation-en_US        
Ign https://repo.varnish-cache.org trusty/varnish-4.0 Translation-en           
Err https://repo.varnish-cache.org trusty/varnish-4.0 amd64 Packages           
  gnutls_handshake() failed: Handshake failed
Err https://repo.varnish-cache.org trusty/varnish-4.0 i386 Packages            
  gnutls_handshake() failed: Handshake failed
Fetched 5,403 kB in 10s (506 kB/s)                                             
W: Failed to fetch https://repo.varnish-cache.org/ubuntu/dists/trusty/varnish-4.0/binary-amd64/Packages  gnutls_handshake() failed: Handshake failed

W: Failed to fetch https://repo.varnish-cache.org/ubuntu/dists/trusty/varnish-4.0/binary-i386/Packages  gnutls_handshake() failed: Handshake failed

E: Some index files failed to download. They have been ignored, or old ones used instead.

这是什么意思，我该如何解决这个问题？

Answer 1

要修复，请删除旧的Varnish-Cache 和损坏的 APT 存储库源：

sudo apt-get purge varnish

sudo rm /etc/apt/sources.list.d/varnish*

sudo apt-key list | grep "varnish"

^（在左侧找到与 varnish-cache 匹配的 GPG 'KeyID'）

sudo apt-key del (Varnish-Cache GPG KeyID from above)

运行 apt update - 您应该不会再看到错误：

sudo apt-get update

如果您想通过官方 Ubuntu 存储库再次安装它：

sudo apt-get install varnish

请参阅：https : //varnish-cache.org/releases/install_debian.html

如果您想安装最新或开发版本，请遵循以下（或更新的指南）：

=> https://packagecloud.io/varnishcache/varnish5/install#bash-deb