Cfxtrjtrk

I am unable to update my ubuntu server 14.04 using apt-get update.

Outcome is:

W: failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/trusty/inrelease 

And another error is:

/usr/local/snort/bin/snort: error while loading shared libraries: libdnet.1 : cannot open shared object

How can I solve this?

I just had this same issue. My company has a firewall that stopped apt-get from getting to the http sources. They still allow ftp traffic, so I was able to work around the firewall by changing all the "http" sites in sources.list to "ftp". For example, in file /etc/apt/sources.list, I changed line:

deb http://us.archive.ubuntu.com/ubuntu/ trusty-security main

to

deb ftp://us.archive.ubuntu.com/ubuntu/ trusty-security main

Now apt-get is able to fetch the files from the repositories.

edit /etc/resolve.conf file and change nameserver adress e.g 8.8.8.8 if thats not solving your problem try this tutorial

You should try sudo apt-get upgrade that will run as superuser and upgrade you to 16.04 if you dont want that try sudo apt-get update to run the command as superuser thats what u usually do if your updating your current version there also could be no new updated versions but I bet there are if you want to check you can use sudo apt-get dist-upgrade to upgrade your current verison of ubuntu like 14.04 to 14.14 for expmple though ther might not be a 14.14 version of ubuntu!!! Thank you for the question!