I am very new to the forum and to Graylog.
I have just put it into my production environment (Debian 8.7 + Graylog 2.2.3). It works perfectly with UDP inputs, however I can’t get it to work with TCP inputs. From the tcpdump I can see that the server is receiving the packets from the sources (Palo Alto firewall, windows servers & Debian servers) but they do not reach Graylog and noting is displayed on the Inputs and search ages.
Has anybody seen similar behaviour?
Thank you in advance for any advice.