my VPS Cannot Connect to jenkins.io and its mirror

[M Fachmi Rizal]

Hello Greetings , 
I tried to install jenkins in my new VPS from Contabo.. but when executing "sudo apt-get install jenkins" it said cannot connect to the jenkins mirror and failed... when I test to ping the jenkins.io from terminal using "ping -v jenkins.io" it doesnt return anything.. 

but in my other VPS and local computer, installing jenkins and ping jenkins.io work flawlessly...

today i tried to install jenkins manually from deb file and it work.. but I cannot install the plugin because it says it cannot connect to the server..
I tried to contact the customer service, but they can't help because this is technical issue.
Please help me, I also attach the images
Sorry for my bad english..

Thanks,

Rizal

[Mark Waite]

This is the Jenkins infrastructure mailing list.  Your question is due to a problem at your hosting company, not a problem with the Jenkins infrastructure.

Their network firewall rules seem to block traffic to the nearest Jenkins mirror, at Tsinghua University in China.  You'll need to work with them to fix their network firewall rules.

Questions of this type are better asked at https://community.jenkins.io or even better in the support forum of your IT vendor.

Mark Waite