What's the extra FTP port here?

Posted by warl0ck on Super User See other posts from Super User or by warl0ck
Published on 2012-12-08T16:09:31Z Indexed on 2012/12/08 17:07 UTC
Read the original article Hit count: 197

Filed under:

ftp

While downloading a tar ball from gnu's FTP server, I found that other than standard 21 TCP port connection, I also seeing an extra connection:

tcp        0      0 192.168.1.109:45056     208.118.235.20:21       ESTABLISHED 10956/wget          
tcp        0      0 192.168.1.109:56724     208.118.235.20:22259    ESTABLISHED 10956/wget

What that port is used for? I checked /etc/services, only 20 and 21 should be in use, am I wrong?

The command in use was wget 'ftp://ftp.gnu.org/gnu/tar/tar-1.26.tar.xz'

Related posts about ftp

sudo apt-get update problem

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a problem with sudo apt-get update that I can't seem to fix and It's causing problems with alot of installations I want to do. I run Ubuntu 12.04. Ign http://ftp.availo.se precise InRelease Ign http://ftp.availo.se precise-updates InRelease Ign http://ftp.availo… >>> More
Why does DEP kill IE when accessing Microsoft FTP?

as seen on Super User - Search for 'Super User'
I start up IE (9.0.8112.16421) with about:blank and I go to ftp://ftp.microsoft.com/ I press Alt, click View and then Open FTP Site in Windows Explorer. At this point IE stops responding and eventually crashes (though the window is still active, sometimes) and I get the usual Windows dialog box saying… >>> More
Shrinking TCP Window Size to 0 on Cisco ASA

as seen on Server Fault - Search for 'Server Fault'
Having an issue with any large file transfer that crosses our Cisco ASA unit come to an eventual pause. Setup Test1: Server A, FileZilla Client <- 1GBPS - Cisco ASA <- 1 GBPS - Server B, FileZilla Server TCP Window size on large transfers will drop to 0 after around 30 seconds of a large… >>> More
Shrinking Windows Size to 0 on Cisco ASA

as seen on Server Fault - Search for 'Server Fault'
Having an issue with any large file transfer that crosses our Cisco ASA unit come to an eventual pause. Setup Test1: Server A, FileZilla Client <- 1GBPS - Cisco ASA <- 1 GBPS - Server B, FileZilla Server TCP Window size on large transfers will drop to 0 after around 30 seconds of a large… >>> More
Weird FTP issue between Unity Express and Windows Server 2008 FTP

as seen on Server Fault - Search for 'Server Fault'
My VOIP specialist complained about not being able to run backups of the Unity Express onto our FTP server (Microsoft FTP on Server 2008). I did a packet trace and observed some weird behavior that I think is even kind of funny in a way. The Unity FTP client is able to initiate both control and data… >>> More

Developer IT

What's the extra FTP port here? - Developer IT

What's the extra FTP port here?

ftp

Related posts about ftp

sudo apt-get update problem

Why does DEP kill IE when accessing Microsoft FTP?

Shrinking TCP Window Size to 0 on Cisco ASA

Shrinking Windows Size to 0 on Cisco ASA

Weird FTP issue between Unity Express and Windows Server 2008 FTP

Categories cloud