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<a href="http://www.psc.edu/networking/projects/tcptune/" rel="ugc">http://www.psc.edu/networking/projects/tcptune/</a>
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http://www.psc.edu/networking/projects/tcptune/ [http://www.psc.edu/networking/projects/tcptune/]

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Hello, <br />
<br />
I am seeing very slow linux-to-linux or windows-to-linux file transfer rates. It's about 7kb/sec vs windows-to-windows tranfer rates of approximately 49kb/sec.<br />
<br />
I have a large number of Linux servers and several windows servers on a layer 2 gigabit network. No servers have firewall or SElinux. OS is mostly Centos v4.8 and v5.3 with some v5.5. I have checked each server and they show eth0 as gigabit full duplex, no or very low lost packets. I'm also running Capsa and it doesnt show a lot of collisions. I've tested dns, reverse dns, etc.<br />
<br />
I've also pulled two of the Linux servers and placed it on a small 5-port linksys gigabit switch with my windows laptop and a windows server with the same results as above. Is there something basic I am missing? Does Linux have some sort of encryption going on that I can turn off?<br />
<br />
Authentication is by Files then NIS but this happens even when I login root.
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Hello, 

I am seeing very slow linux-to-linux or windows-to-linux file transfer rates. It's about 7kb/sec vs windows-to-windows tranfer rates of approximately 49kb/sec.

I have a large number of Linux servers and several windows servers on a layer 2 gigabit network. No servers have firewall or SElinux. OS is mostly Centos v4.8 and v5.3 with some v5.5. I have checked each server and they show eth0 as gigabit full duplex, no or very low lost packets. I'm also running Capsa and it doesnt show a lot of collisions. I've tested dns, reverse dns, etc.

I've also pulled two of the Linux servers and placed it on a small 5-port linksys gigabit switch with my windows laptop and a windows server with the same results as above. Is there something basic I am missing? Does Linux have some sort of encryption going on that I can turn off?

Authentication is by Files then NIS but this happens even when I login root.

slow linux network file transfer, file copy - centos v4.8, v5.3, v5.5

The variety of Linux distributions creates myriad issues relating to configuration and operations when computers are networked, not the least of which is the use of various network management applications, some of which are included with specific distributions, while others are standalone applications.