[nos-bbs] FTP creates a wierd ftpd socket
k8rra at ameritech.net
Thu May 24 09:58:55 EDT 2007
Greetings to ftp users.
While using "ftp> resume file" command my jnos takes a wrong turn.
My ftp remote is 18.104.22.168 IP / all is OK thru message #150 "Opening
FTP then tries to establish a new ftpd socket with 22.214.171.124 IP.
This just will not work!
Now I can't totally blame jnos code for this - I have been *playing*
with all the tuning numbers for ax25, ip, tcp, and the TNC. So I may be
my own worst nightmare.
However this smells like a buffer overrun to me?
I don't have a clue where the IP came from. The "tcp view" shows no
received or sent bytes, just retried bytes, therefore(?) the IP must be
created from a non-IP field. Over the past two days, the IP number has
Before you try to replicate this, it fails with "ftp> get file" too, and
until yesterday morning ftp behaved very nicely. So I probably can fix
this by reverting to pre-yesterday configuration.
So my purpose here is to alert users to an unusual condition, and also
to provide a testbed if anyone wants to do debugging (I will eventually
find the parameter responsible for this mess)...
de [George (Skip) VerDuin] K8RRA k
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