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IIS FTP keeps disconnecting after a while

hi,
i'm having a problem with ftp-servers that are behing an astaro. I'm using astaro v.5.012 with 3 nics, one for the internet and the other 2 for different internal networks. When I try to connect to one of the FTP-servers that are on the internal network from the internet, the initial communication is set up well, but only after a few minutes the connection is terminated and i have to start all over again. I'm using NAT to address the internal servers. When i connect through a VPN-tunnel and then connect the ftp-servers (or if I connect directly from the internal network) this is not the case, everything works perfect. So I guess it has something to do with the firewall... Anyone?
thx,
Tim.

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0 OfficeDefender over 21 years ago

If you're running FTP through ASL, you need to keep the ports at the standard FTP ports. Are you using 20/21 for FTP, or are you attempting to use other ports?

-Steve
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0 timber666 over 21 years ago in reply to OfficeDefender

I'm using standard ports...
looks like Bashi has the same problem (see his post)
Tim.
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0 timber666 over 21 years ago in reply to timber666

This is a bad problem... can anybody give some advice or confirm it is a bug?
thx,
Tim.
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0 hotphil over 21 years ago in reply to timber666

Are the FTP sites under IIS on Windows? If so, I had a similar sounding problem. Couldn't resolve it. Installed BulletProof FTP server instead, turned out to be to do with FTP "passive" connections settings that weren't working with Astaro/IIS. The FTP upload I was trying to do was from Blogger. If it is of any use, the article that helped me is here

As soon as set up BulletProof FTP and allowed it to accept passive connections, everything worked OK.
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0 William Warren over 21 years ago in reply to hotphil

IIS does not do passive ftp transfers well..which will be problematic behind many firewalls. The workaround is what you idid..install another ftp server that can readily handle passive ftp transfers.

Owner: Emmanuel Technology Consulting

http://etc-md.com

Former Sophos SG(Astaro) advocate/researcher/Silver Partner

PfSense w/Suricata, ntopng,

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0 William Warren over 21 years ago in reply to hotphil

IIS does not do passive ftp transfers well..which will be problematic behind many firewalls. The workaround is what you idid..install another ftp server that can readily handle passive ftp transfers.

Owner: Emmanuel Technology Consulting

http://etc-md.com

Former Sophos SG(Astaro) advocate/researcher/Silver Partner

PfSense w/Suricata, ntopng,

Other addons to follow
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