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oojah.josh
n00b
Joined: 24 Jan 2006
Posts: 10
Location: Jersey
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 Posted: Fri Apr 21, 2006 2:06 pm Post subject: vsftpd timeout problem |
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Hi all
I am running vsftpd and am having some problems. At the moment my adsl ip changes every six hours and i have a DUC ip updater from no-ip which keeps the dns currnet. as a result though i have to set the timeout in vsftpd.conf quite high, but this is not a problem. anyway the point is is that the vsftpd timeouts are high.
however when an ip changes the clients timeout - the clients being windows xp - and i think this is because windows xp has set itself to give up on a connection if its quiet for around 5 secs. is there any way to change this?
thanks in advance! |
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think4urs11
Bodhisattva
Joined: 25 Jun 2003
Posts: 6659
Location: above the cloud
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| Posted: Fri Apr 21, 2006 4:36 pm Post subject: |
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of course the clients timeout.
How shall they keep up a connection to a server which changes it's ip address in the middle of a session? There *must* be a timeout.
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Nothing is secure / Security is always a trade-off with usability / Do not assume anything / Trust no-one, nothing / Paranoia is your friend / Think for yourself |
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oojah.josh
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Joined: 24 Jan 2006
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Location: Jersey
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| Posted: Fri Apr 21, 2006 5:29 pm Post subject: |
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yes exactly. but the problem is that the CLIENTS give up too soon. and can this be changed?! i did an experiment by transferring a file over. and unplugged the network cable. all was fine when i plugged it back in (i took it out for about 2 secs) but then it fails if its done for 5 secs. obvioulsy this is not the server - since timeout is set much higher. so, how can i tell windows not to give up so soon?!
thanks. and sorry if i am not being clear, being dumb etc! |
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oojah.josh
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Joined: 24 Jan 2006
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Location: Jersey
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| Posted: Fri Apr 21, 2006 5:31 pm Post subject: |
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| oh sorry. presumably they maintain a connection with the server when its ip changes because if it fails, does the client not attempt to reconnect to the address , which will be updated when the DUC kicks in? as you can probably tell i am not entirely clued up on the matter. but hopefully i am making some sort of sense |
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think4urs11
Bodhisattva
Joined: 25 Jun 2003
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Location: above the cloud
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| Posted: Fri Apr 21, 2006 5:44 pm Post subject: |
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| oojah.josh wrote: | | oh sorry. presumably they maintain a connection with the server when its ip changes because if it fails, does the client not attempt to reconnect to the address , which will be updated when the DUC kicks in? as you can probably tell i am not entirely clued up on the matter. but hopefully i am making some sort of sense |
If at all the ftp client tries to reconnect to the former ip address, thats why this attempt then fails when this ip is gone. Normally the ftp client does not do annother dns lookup during an existing connection (why should he).
_________________
Nothing is secure / Security is always a trade-off with usability / Do not assume anything / Trust no-one, nothing / Paranoia is your friend / Think for yourself |
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oojah.josh
n00b
Joined: 24 Jan 2006
Posts: 10
Location: Jersey
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| Posted: Fri Apr 21, 2006 5:50 pm Post subject: |
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| oh right. so in fact the whole dns updater thing is a waste of time as far as the transfers go. bummer. is there any possible work around? static ip's cost so much! |
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