[CentOS] VSFTPD accepting same user/session from different IP addresses

Dirk H. Schulz dirk.schulz at kinzesberg.de
Mon Mar 22 13:41:50 UTC 2010


Hi folks,

I have found the following in my logs:

Wed Mar 10 15:52:33 2010 [pid 15232] [uploaduser] OK MKDIR: Client 
"195.200.70.*40*", "/04 LV gelieferte Daten 04_2010/04 LV 
Seiten/Jungz?chter"
Wed Mar 10 15:52:33 2010 [pid 15231] [uploaduser] FAIL MKDIR: Client 
"195.200.70.*41*", "/04 LV gelieferte Daten 04_2010/04 LV 
Seiten/Jungz?chter"
Wed Mar 10 15:52:36 2010 [pid 15232] [uploaduser] OK UPLOAD: Client 
"195.200.70.*40*", "/04 LV gelieferte Daten 04_2010/04 LV 
Seiten/Jungz?chter/Kooperationsseminar.doc", 23552 bytes, 13.89Kbyte/sec
Wed Mar 10 15:52:37 2010 [pid 15231] [uploaduser] OK UPLOAD: Client 
"195.200.70.*41*", "/04 LV gelieferte Daten 04_2010/04 LV 
Seiten/Jungz?chter/Veranstaltungen der Jungz?chter im Jahr 2010.doc", 
23552 bytes, 9.07Kbyte/sec
Wed Mar 10 15:52:38 2010 [pid 15232] [uploaduser] OK UPLOAD: Client 
"195.200.70.*40*", "/04 LV gelieferte Daten 04_2010/04 LV 
Seiten/Jungz?chter/Foto Kooperationsseminar von laura weber.JPG", 13445 
bytes, 9.90Kbyte/sec

What I am concerned about is the fact that the client sends out using 
various gateways at once. Is there some configuration item in VSFTPD 
which can prevent this and reject packets from the additional ip addresses?

Any hint or help is appreciated.

Dirk


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