Jenkins generates anomalous traffic on Ubuntu, anyone else?

Question

Jenkins

The thing is, I use a remote workstation for load testing and performing autotests, I received a notification from a group of system administrators that my workstation specifically generates abnormal traffic and clogs the channel, I registered the Firewall using iptables left only those ports that are needed, and only those resources in which I'm sure, but the traffic continued to pour in.
Today, for the sake of experiment, I started deleting services that drive in the system, which I installed, in fact, Jenkins was the first to fly into the trash and lo and behold, outgoing traffic dropped to 7-15 kbps.
Who faced this, what could be the problem? You need to do autotests))))
Thank you in advance.

Answer 1

you were in a bit of a hurry) you could start with sudo service jenkins stop and see. it is likely that some jobs could be present in it, run on a schedule or something like that