Unable to update my VM Ubuntu Server 14.04 through source list, Any fix?

Question

I have installed Ubuntu server 14.04 on virtual box along with putty and Winscp for ftp requirements.I need to install some packages in to that but if I write

sudo apt-get install openjdk-7-jre

... it gives "Unable to locate the package".
However if I simply use:

sudo apt-get update

then also it returns error

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/trusty-security/Release.gpg  Could not resolve 'security.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

It seems there is some issue with sources.list file, I have already checked it with possibilities of errors but could not find any fix for that. Can anybody help me out of this. Thanks

Could you check if you can resolve the server name using nslookup security.ubuntu.com and reach it using ping security.ubuntu.com? — Byte Commander, Mar 15 '16 at 08:16
The nslookup output should contain several lines like this: Name: security.ubuntu.com Address: 91.189.88.149 - doesn't it? — Byte Commander, Mar 15 '16 at 10:44
I am getting this error when I am using apt-get updateE: GPG error: http://in.archive.ubuntu.com trusty InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?) — Vipul, Mar 15 '16 at 11:09
Then please look at this question and follow the proposed solutions: http://askubuntu.com/questions/474549/got-nodata-issue-nodata-does-the-network-require-authentication — Byte Commander, Mar 15 '16 at 11:12
I gone through the link but could not find any solution from there — Vipul, Mar 16 '16 at 05:32
What do you mean by "could not find any solution from there"? You tried all the given solutions and still get the NODATA error? Did you already try a different internet connection? — Byte Commander, Mar 16 '16 at 07:36
Does this answer your question? Got NODATA issue: 'NODATA' (does the network require authentication?) — karel, Feb 08 '20 at 05:41

Unable to update my VM Ubuntu Server 14.04 through source list, Any fix?

0 Answers0