Using a proxy with yum in Centos 6

Could not retrieve mirrorlist error was
12: Timeout on (28, 'Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds')
Error: Cannot find a valid baseurl for repo: base

You would think this should be fine and simple like using a proxy with most other software?
However you would be severely mistaken to think like I did!

First of all yum CANNOT even use a SOCKS server, it only supports http://!
Fine, so we will set one in yum.conf like so: proxy=http://somehost:8080

Another way is to set an all_proxy or http_proxy environment variable (this saves you from adding the proxy to yum itself but beware it means all operations are proxied):

export all_proxy="http://someurl:8080"
export http_proxy="http://someurl:8080"

Let's do a yum update:

Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Could not retrieve mirrorlist error was
12: Timeout on (28, 'Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds')
Error: Cannot find a valid baseurl for repo: base

The problem is that due to Squid's caching nature you will never get a proper result so the mirror list operation will always fail.

How can you fix it?
It's a pain, you have to go to your repos and comment out all the "mirrorlist" lines and uncomment "baseurl" lines (be sure to backup the .conf/repo before you do this).

It is really too bad there is no "seamless" way of proxying yum.


proxy, yum, centos, retrieve, mirrorlist, http, org, _, repo, os, timeout, bytes, transfered, valid, baseurl, software, severely, server, supports, conf, somehost, all_proxy, http_proxy, variable, saves, adding, beware, operations, proxied, export, quot, someurl, update, plugins, fastestmirror, loading, speeds, cached, hostfile, squid, caching, repos, uncomment, seamless, proxying,

Latest Articles

  • ssh Too many authentication failures not prompting for password
  • LightDM Mint Ubuntu Debian won't start errors Nvidia Graphics
  • WARNING: Unable to determine the path to install the libglvnd EGL vendor library config files. Check that you have pkg-config and the libglvnd development libraries installed, or specify a path with --glvnd-egl-config-path. Linux Ubuntu Mint Debian E
  • How To Upgrade Linux Mint 18.2 to 18.3 to 19.x and 20.x
  • MP3s Won't Play / ID3 Version 2.4 Issues in Cars and Other MP3 Players/CDs/DVDs Solution
  • LXC Containers LXD How to Install and Configure Tutorial Ubuntu Debian Mint
  • GlusterFS HowTo Tutorial For Distributed Storage in Docker, Kubernetes, LXC, KVM, Proxmox
  • Ubuntu Mint audio output not working pulseaudio "pulseaudio[13710]: [pulseaudio] sink-input.c: Failed to create sink input: too many inputs per sink."
  • How To Shrink Dynamically Allocated VM QEMU KVM VMware Disk Image File
  • How To Enable Linux Swapfile Instead of Partition Ubuntu Mint Debian Centos
  • 404 Not Found [IP: 80] apt update Debian 11 Bullseye Solution The repository ' bullseye/updates Release' does not have a Release file.
  • WARNING: Can't download daily.cvd from freshclam clamav error solution
  • (firefox:9562): LIBDBUSMENU-GLIB-WARNING **: Unable to get session bus: Failed to execute child process "dbus-launch" (No such file or directory) Solution
  • Debian Mint Ubuntu Which Package Provides missing top, ps and w Solution
  • Vbox Virtualbox DNS NAT Network Mode NOT working
  • Docker Tutorial HowTo Install Docker, Use and Create Docker Container Images Clustering Swarm Mode Monitoring Service Hosting Provider
  • Zoom Password Error 'That passcode was incorrect' - Solution Wrong Passcode Wrong Meeting Name
  • How To Startup and Open Remote/Local Folder/Directory in Ubuntu Linux Mint automatically upon login
  • How To Reset Windows Server Password 2019, 2022, 7, 8, 10, 11 Recovery and Removal Guide Using Linux Ubuntu Mint Debian
  • How To Create OpenVPN Server for Secure Remote Corporate Access in Linux Debian/Mint/Ubuntu with client public key authentication