The Transport Control Protocol (TCP) is a low-level part of the protocol stack used by the Internet. It sits directly above the IP layer and is responsible for making sure that dropped packets are resent.

learn more… | top users | synonyms

27
votes
6answers
45k views

Determining what process is bound to a port

I know that using the command: lsof -i TCP (or some variant of parameters with lsof) I can determine which process is bound to a particular port. This is useful say if I'm trying to start ...
2
votes
1answer
1k views

Need further explanation on TIME_WAIT

Hi Unix/Linux Gurus out there! I need a solid proof that TIME_WAIT (a lot of it actually) is the real culprit in the slowdown in one of our servers. The server is hosted on Parallels Baremetal ...
1
vote
1answer
565 views

Select YeAH-TCP like congestion control algorithm to configure kernel

I'm configuring/compiling the 2.6.37 kernel and I want select YeAH-TCP like default congestion control algorithm but, although I enable this option (CONFIG_TCP_CONG_YEAH), it doesn't show in the ...
4
votes
4answers
10k views

testing services/open ports with telnet?

I often see that folks test ports this way: //shell telnet ip-address 80 telnet ip-address 25 AFAIK telnet was the old way of getting onto some remote box - right? or so I thought... Why exactly ...
1
vote
1answer
169 views

vnc over ssh port assignment

At the office I have on the servers a vnc server running. In Windows I use putty to connect to the server, I log in and then use realvnc to see the desktop. But I cannot get this to work on Linux. I ...