This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-select-the-fastest-apt-mirror-on-ubuntu-linux
pcolby
Excellent article - very helpful! Thanks
Once small tip: sed’s substitute command (s
) allows you to swap the ‘/’ separator with any other single character. Since URLs often contain ‘/’ chars, its convenient to use a different separator, such as ‘|’. So, you example:
sed -i 's/http:\/\/us.archive.ubuntu.com\/ubuntu\//http:\/\/ubuntu.uberglobalmirror.com\/archive\//' ...
becomes
sed -i 's|http://us.archive.ubuntu.com/ubuntu/|http://ubuntu.uberglobalmirror.com/archive/|' ...
which is just a bit easier, since you don’t have to manually escape the cut-and-pasted URLs
Also, the in-place argument (-i
) accepts a filename suffix to automatically create a backup. So, for example,
sudo sed -i.backup 's...' /etc/apt/sources.list
will automatically creates a file /etc/apt/sources.list.backup
, which is a copy of the file prior to sed’s modifications (though I’d probably back it up manually with cp -a
beforehand anyway).
Thanks again!
Justin Johnston
Nice article, although it seems netselect doesn’t run on Ubuntu 18.04 yet.
As a work-around, I wrote this one-liner that shows the top 20 fastest mirrors based on ICMP latency using ping.
for mirror in $(wget -qO - mirrors.ubuntu.com/mirrors.txt|sed ‘s/^http:////;s//.$//') ; do echo $(ping -c 1 $mirror|grep "^64 bytes.time="|sed 's/^64 bytes.=//;s/ .$//’) $mirror ; done|sort -n|grep “[1]”|head -n 20
0-9 ↩︎
Sajeev Ramasamy
when i run the netselect command, i’m getting the following error: netselect: socket: Permission denied. Could anyone help me?
Lubos Rendek -> Sajeev Ramasamy
use sudo command as shown on the above example
Sajeev Ramasamy -> Lubos Rendek
That’s what baffles me. I’m getting the error even when I use sudo
Lubos Rendek → Sajeev Ramasamy
Also have a look here: https://linuxconfig.org/how-to-create-sudo-user-on-ubuntu-18-04-bionic-beaver-linux
Lubos Rendek -> Sajeev Ramasamy
Is you user in sudo group? Run:
$ id whoami
Sajeev Ramasamy -> Lubos Rendek
the user belongs to the sudo group, also i’m trying this in WSL.
Sajeev Ramasamy -> Lubos Rendek
My user belongs to the sudo group, I should also mention that I’m trying this in WSL.
David Orozco
love this approach