If I log on to the server server using Winscp and edit a file the ftp server keeps crashing:

Here is the debug logs files for the ftp server:

1/16 12:30:02a 1708 TX: 220 Please enter your user name.
1/16 12:30:02a 1708 RX: USER plt
1/16 12:30:02a 1708 TX: 331 User name okay, need password.
1/16 12:30:02a 1708 RX: PASS xxxxxxxxxxxx
1/16 12:30:03a 1708 <Plt> logged in (6 today, 657 total)
1/16 12:30:03a 1708 TX: 230-
1/16 12:30:03a 1708 TX:
1/16 12:30:03a 1708 TX: All users that login as Anymous can only uplod files
1/16 12:30:03a 1708 TX: and you will not be able to download files from this
1/16 12:30:03a 1708 TX: ftp server.
1/16 12:30:03a 1708 TX: [x2]
1/16 12:30:03a 1708 TX: 230-Plt logged in.
1/16 12:30:03a 1708 TX: 230 You are allowed 1440 minutes of use for this session.
1/16 12:30:03a 1708 RX: SYST
1/16 12:30:03a 1708 TX: 215 UNIX Type: L8
1/16 12:30:03a 1708 RX: FEAT
1/16 12:30:03a 1708 TX: 211-The following additional (post-RFC949) features are supported:
1/16 12:30:03a 1708 TX: DESC
1/16 12:30:03a 1708 TX: MDTM
1/16 12:30:03a 1708 TX: SIZE
1/16 12:30:03a 1708 TX: REST STREAM
1/16 12:30:03a 1708 TX: AUTH TLS
1/16 12:30:03a 1708 TX: PBSZ
1/16 12:30:03a 1708 TX: PROT
1/16 12:30:03a 1708 TX: MLST Type*;Perm*;Size*;Modify*;UNIX.ownername*;Unique*;Create*
1/16 12:30:03a 1708 TX: TVFS
1/16 12:30:03a 1708 TX: 211 End
1/16 12:30:03a 1708 RX: PWD
1/16 12:30:03a 1708 TX: 257 "/" is current directory.
1/16 12:30:03a 1708 RX: CWD /general/SYSTEM
1/16 12:30:03a 1708 TX: 250 CWD command successful.
1/16 12:30:03a 1708 RX: PWD
1/16 12:30:03a 1708 TX: 257 "/general/SYSTEM" is current directory.
1/16 12:30:03a 1708 RX: TYPE A
1/16 12:30:03a 1708 TX: 200 All files sent in BINARY mode.
1/16 12:30:03a 1708 RX: PASV
1/16 12:30:03a 1708 <Plt> PASV DATA socket 1804 opened
1/16 12:30:03a 1708 <Plt> PASV DATA trying to bind socket to port 1024
1/16 12:30:03a 1708 <Plt> PASV DATA trying to bind socket to port 1025
1/16 12:30:03a 1708 <Plt> PASV DATA trying to bind socket to port 1026
1/16 12:30:03a 1708 <Plt> PASV DATA socket 1804 bound to port 1026
1/16 12:30:03a 1708 <Plt> PASV DATA IP address in response: 98.175.102.203 (subject to NAT)
1/16 12:30:03a 1708 TX: 227 Entering Passive Mode (98,175,102,203,4,2)
1/16 12:30:03a 1708 RX: MLSD
1/16 12:30:03a 1708 TX: 150 Opening ASCII mode data connection for MLSD.
1/16 12:30:03a 1708 <Plt> MLSD listing: /general/SYSTEM directory in passive mode
1/16 12:30:03a 1708 <Plt> MLSD listing (520 bytes) of /general/SYSTEM (2 files) created in 0 seconds
1/16 12:30:03a 1708 <Plt> PASV DATA socket 1804 listening on 98.175.102.203 port 1026
1/16 12:30:14a 1756 <Plt> PASV !DATA select returned 0 (error: 0)
1/16 12:30:14a 1756 TX: 425 Error 0 selecting socket for connection
1/16 12:30:14a 1756 <Plt> logged off
1/16 12:30:14a 1756 CTRL thread terminated (2 clients and 3 threads remain, 6 served)
1/16 12:30:15a 1244 RX: CWD /general
1/16 12:30:15a 1244 TX: 250 CWD command successful.
1/16 12:30:15a 1244 RX: CWD /
1/16 12:30:15a 1244 TX: 250 CWD command successful.
1/16 12:30:15a 1244 RX: PWD
1/16 12:30:15a 1244 TX: 257 "/" is current directory.
1/16 12:30:15a 1244 RX: TYPE A
1/16 12:30:15a 1244 TX: 200 All files sent in BINARY mode.
1/16 12:30:15a 1244 RX: PASV
1/16 12:30:15a 1244 <Plt> PASV DATA socket 1472 opened
1/16 12:30:15a 1244 <Plt> PASV DATA trying to bind socket to port 1024
1/16 12:30:15a 1244 <Plt> PASV DATA socket 1472 bound to port 1024
1/16 12:30:15a 1244 <Plt> PASV DATA IP address in response: 98.175.102.203 (subject to NAT)
1/16 12:30:15a 1244 TX: 227 Entering Passive Mode (98,175,102,203,4,0)
1/16 12:30:15a 1244 RX: MLSD
1/16 12:30:15a 1244 TX: 150 Opening ASCII mode data connection for MLSD.
1/16 12:30:15a 1244 <Plt> MLSD listing: root in passive mode
1/16 12:30:15a 1244 <Plt> PASV DATA socket 1472 listening on 98.175.102.203 port 1024
1/16 12:30:15a 1244 <Plt> PASV DATA socket 1700 connected to 98.175.102.203 port 3964
1/16 12:30:15a 1244 <Plt> DATA socket 1700 sending C:\sbbs\temp\SBBS_FTP.41544dc3d6c39747.lst from offset 0
1/16 12:30:15a 1244 <Plt> DATA socket closed
1/16 12:30:15a 1244 <Plt> DATA Transfer successful: 1007 bytes sent in 0 seconds (2014 cps)
1/16 12:30:15a 1244 TX: 226 Download complete (2014 cps).
1/16 12:30:18a 1244 RX: CWD sysop
1/16 12:30:18a 1244 TX: 250 CWD command successful.
1/16 12:30:18a 1244 RX: PWD
1/16 12:30:18a 1244 TX: 257 "/sysop" is current directory.
1/16 12:30:18a 1244 RX: TYPE A
1/16 12:30:18a 1244 TX: 200 All files sent in BINARY mode.
1/16 12:30:18a 1244 RX: PASV
1/16 12:30:18a 1244 <Plt> PASV DATA socket 1472 opened
1/16 12:30:18a 1244 <Plt> PASV DATA trying to bind socket to port 1024
1/16 12:30:18a 1244 <Plt> PASV DATA socket 1472 bound to port 1024
1/16 12:30:18a 1244 <Plt> PASV DATA IP address in response: 98.175.102.203 (subject to NAT)
1/16 12:30:18a 1244 TX: 227 Entering Passive Mode (98,175,102,203,4,0)
1/16 12:30:18a 1244 RX: MLSD
1/16 12:30:18a 1244 TX: 150 Opening ASCII mode data connection for MLSD.
1/16 12:30:18a 1244 <Plt> MLSD listing: sysop library in passive mode
1/16 12:30:18a 1244 <Plt> PASV DATA socket 1472 listening on 98.175.102.203 port 1024
1/16 12:30:18a 1244 <Plt> PASV DATA socket 1740 connected to 98.175.102.203 port 3965
1/16 12:30:18a 1244 <Plt> DATA socket 1740 sending C:\sbbs\temp\SBBS_FTP.41544dc2cd63a14b.lst from offset 0
1/16 12:30:18a 1244 <Plt> DATA socket closed
1/16 12:30:18a 1244 <Plt> DATA Transfer successful: 366 bytes sent in 0 seconds (732 cps)
1/16 12:30:18a 1244 TX: 226 Download complete (732 cps).
1/16 12:30:21a 1456 CTRL thread started
1/16 12:30:21a 1456 CTRL connection accepted from: 98.175.102.203 port 3966
1/16 12:30:21a 1456 Hostname: sbbs.dynu.net
1/16 12:30:22a 1456 TX: 220-sbbs.dynu.com (sbbs.dynu.net)
1/16 12:30:22a 1456 TX: Synchronet FTP Server 1.486-Win32 Ready
1/16 12:30:22a 1456 TX:
1/16 12:30:22a 1456 TX: Welcome to sbbs.dynu.net. The username
1/16 12:30:22a 1456 TX: anonymous user may only be used to upload
1/16 12:30:22a 1456 TX: files and the user privilages will deny any
1/16 12:30:22a 1456 TX: attempts to dowload files from this system.
1/16 12:30:22a 1456 TX:
1/16 12:30:22a 1456 TX: By connecting to this system you waive your
1/16 12:30:22a 1456 TX: rights to have your activities monitored by
1/16 12:30:22a 1456 TX: the system operator. All abuse discovered by
1/16 12:30:22a 1456 TX: the system operator will be reported the
1/16 12:30:22a 1456 TX: proper authorities or to your ISP.
1/16 12:30:22a 1456 TX:
1/16 12:30:22a 1456 TX: There is no technical support offered using
1/16 12:30:22a 1456 TX: this ftp server.
1/16 12:30:22a 1456 TX:
1/16 12:30:22a 1456 TX: 220 Please enter your user name.
1/16 12:30:22a 1456 RX: USER plt
1/16 12:30:22a 1456 TX: 331 User name okay, need password.
1/16 12:30:22a 1456 RX: PASS xxxxxxxxxxxx
1/16 12:30:22a 1456 <Plt> logged in (7 today, 658 total)
1/16 12:30:22a 1456 TX: 230-
1/16 12:30:22a 1456 TX:
1/16 12:30:22a 1456 TX: All users that login as Anymous can only uplod files
1/16 12:30:22a 1456 TX: and you will not be able to download files from this
1/16 12:30:22a 1456 TX: ftp server.
1/16 12:30:22a 1456 TX: [x2]
1/16 12:30:22a 1456 TX: 230-Plt logged in.
1/16 12:30:22a 1456 TX: 230 You are allowed 1440 minutes of use for this session.
1/16 12:30:22a 1456 RX: SYST
1/16 12:30:22a 1456 TX: 215 UNIX Type: L8
1/16 12:30:22a 1456 RX: FEAT
1/16 12:30:22a 1456 TX: 211-The following additional (post-RFC949) features are supported:
1/16 12:30:22a 1456 TX: DESC
1/16 12:30:22a 1456 TX: MDTM
1/16 12:30:22a 1456 TX: SIZE
1/16 12:30:22a 1456 TX: REST STREAM
1/16 12:30:22a 1456 TX: AUTH TLS
1/16 12:30:22a 1456 TX: PBSZ
1/16 12:30:22a 1456 TX: PROT
1/16 12:30:22a 1456 TX: MLST Type*;Perm*;Size*;Modify*;UNIX.ownername*;Unique*;Create*
1/16 12:30:22a 1456 TX: TVFS
1/16 12:30:22a 1456 TX: 211 End
1/16 12:30:22a 1456 RX: PWD
1/16 12:30:22a 1456 TX: 257 "/" is current directory.
1/16 12:30:22a 1456 RX: CWD /general/SYSTEM
1/16 12:30:22a 1456 TX: 250 CWD command successful.
1/16 12:30:22a 1456 RX: PWD
1/16 12:30:22a 1456 TX: 257 "/general/SYSTEM" is current directory.
1/16 12:30:22a 1456 RX: TYPE A
1/16 12:30:22a 1456 TX: 200 All files sent in BINARY mode.
1/16 12:30:22a 1456 RX: PASV
1/16 12:30:22a 1456 <Plt> PASV DATA socket 1812 opened
1/16 12:30:22a 1456 <Plt> PASV DATA trying to bind socket to port 1024
1/16 12:30:22a 1456 <Plt> PASV DATA trying to bind socket to port 1025
1/16 12:30:22a 1456 <Plt> PASV DATA socket 1812 bound to port 1025
1/16 12:30:22a 1456 <Plt> PASV DATA IP address in response: 98.175.102.203 (subject to NAT)
1/16 12:30:22a 1456 TX: 227 Entering Passive Mode (98,175,102,203,4,1)
1/16 12:30:22a 1456 RX: MLSD
1/16 12:30:22a 1456 TX: 150 Opening ASCII mode data connection for MLSD.
1/16 12:30:22a 1456 <Plt> MLSD listing: /general/SYSTEM directory in passive mode
1/16 12:30:22a 1456 <Plt> MLSD listing (520 bytes) of /general/SYSTEM (2 files) created in 0 seconds
1/16 12:30:22a 1456 <Plt> PASV DATA socket 1812 listening on 98.175.102.203 port 1025
1/16 12:30:30a 1244 <Plt> logged off
1/16 12:30:30a 1244 CTRL thread terminated (2 clients and 3 threads remain, 7 served)
1/16 12:30:33a 1708 <Plt> PASV !DATA select returned 0 (error: 0)
1/16 12:30:33a 1708 TX: 425 Error 0 selecting socket for connection
1/16 12:30:33a 1708 <Plt> logged off
1/16 12:30:33a 1708 CTRL thread terminated (1 clients and 2 threads remain, 7 served)
1/16 12:30:52a 1456 <Plt> PASV !DATA select returned 0 (error: 0)
1/16 12:30:52a 1456 TX: 425 Error 0 selecting socket for connection
1/16 12:30:52a 1456 <Plt> logged off
1/16 12:30:52a 1456 CTRL thread terminated (0 clients and 1 threads remain, 7 served)
1/16 12:30:53a 0000 Recycle semaphore signaled
1/16 12:30:53a 1128 FTP Server closing socket 192.168.0.200 port 2010
1/16 12:30:53a Recycling server...
1/16 12:30:55a Reading C:\sbbs\ctrl\sbbs.ini
1/16 12:30:55a Synchronet FTP Server Revision 1.486
1/16 12:30:55a Compiled Jan 13 2019 15:12:52 with MSC 1800
1/16 12:30:55a WinSock 2.0 Running
1/16 12:30:55a Initializing on Wed Jan 16 00:30:55 2019 with options: 35f
1/16 12:30:55a Loading configuration files from C:\sbbs\ctrl\
1/16 12:30:56a Temporary file directory: C:\sbbs\temp\
1/16 12:30:56a Maximum clients: 20
1/16 12:30:56a Passive Port Low: 1024
1/16 12:30:56a Passive Port High: 65535
1/16 12:30:56a Maximum inactivity: 600 seconds
1/16 12:30:56a FTP Server socket set created
1/16 12:30:56a FTP Server listening on socket 192.168.0.200 port 2010
1/16 12:30:56a FTP Server thread started

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þ Synchronet þ sbbs.dynu.net 2025

On 2019 Jan 16 00:44:56, you wrote to All:

1/16 12:30:22a 1456 TX: All users that login as Anymous can
only uplod files
1/16 12:30:22a 1456 TX: and you will not be able to download
files from this
1/16 12:30:22a 1456 TX: ftp server.

wait, what?? anonymous can upload but not download? you're extremely brave to allow anonymous uploads... when they find you, they'll eat you alive...

)\/(ark

Always Mount a Scratch Monkey
Do you manage your own servers? If you are not running an IDS/IPS yer doin' it wrong...
... Our bikinis are exciting. They are simply the tops.
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Re: FTP Server crashington
By: mark lewis to Plt on Wed Jan 16 2019 11:15:30

wait, what?? anonymous can upload but not download? you're extremely brave to allow anonymous uploads... when they find you, they'll eat you alive...

Later on I going to change it so they can not do it. But for now its only for testing the ftp server.

---
þ Synchronet þ sbbs.dynu.net 2025

Re: FTP Server crashington
By: Plt to All on Wed Jan 16 2019 12:44 am

If I log on to the server server using Winscp and edit a file the ftp server keeps crashing:

You pasted some log output, but I don't see where the server "crashed".

It looked to me like you just had a bunch of passive-transfer related failures, like this one:
1/16 12:30:33a 1708 <Plt> PASV !DATA select returned 0 (error: 0)
1/16 12:30:33a 1708 TX: 425 Error 0 selecting socket for connection

But no crashes.

digital man

Synchronet/BBS Terminology Definition #45:
NNTP = Network News Transfer Protocol
Norco, CA WX: 58.1øF, 96.0% humidity, 0 mph S wind, 0.87 inches rain/24hrs

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Re: FTP Server crashington
By: Digital Man to Plt on Wed Jan 16 2019 13:39:57

Re: FTP Server crashington
By: Plt to All on Wed Jan 16 2019 12:44 am

If I log on to the server server using Winscp and edit a file the ftp server keeps crashing:

You pasted some log output, but I don't see where the server "crashed".

It looked to me like you just had a bunch of passive-transfer related failures, like this one:
1/16 12:30:33a 1708 <Plt> PASV !DATA select returned 0 (error: 0)
1/16 12:30:33a 1708 TX: 425 Error 0 selecting socket for connection

But no crashes.

digital man

I will have to look for some more log files when I get home. When the the issue accured the server disconnected and crashed twice and would not come back up until I restart the ftp services.

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þ Synchronet þ sbbs.dynu.net 2025

Re: FTP Server crashington
By: Plt to Digital Man on Wed Jan 16 2019 05:17 pm

You pasted some log output, but I don't see where the server "crashed".

It looked to me like you just had a bunch of passive-transfer related failures, like this one:
1/16 12:30:33a 1708 <Plt> PASV !DATA select returned 0 (error: 0)
1/16 12:30:33a 1708 TX: 425 Error 0 selecting socket for connection

But no crashes.

I will have to look for some more log files when I get home. When the the issue accured the server disconnected and crashed twice and would not come back up until I restart the ftp services.

What exactly did the crashes look like?

digital man

Synchronet "Real Fact" #76:
Michael Swindell still has the "Synchronet Blimp" in his possession.
Norco, CA WX: 56.2øF, 98.0% humidity, 0 mph SSW wind, 0.37 inches rain/24hrs

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Re: FTP Server crashington
By: Digital Man to Plt on Thu Jan 17 2019 00:10:33

Re: FTP Server crashington
By: Plt to Digital Man on Wed Jan 16 2019 05:17 pm

You pasted some log output, but I don't see where the server "crashed".

It looked to me like you just had a bunch of passive-transfer related failures, like this one:
1/16 12:30:33a 1708 <Plt> PASV !DATA select returned 0 (error: 0)
1/16 12:30:33a 1708 TX: 425 Error 0 selecting socket for connection

But no crashes.

I will have to look for some more log files when I get home. When the the issue accured the server disconnected and crashed twice and would not come back up until I restart the ftp services.

What exactly did the crashes look like?

digital man

That is all I am seeing in the log file. No other errors where reported while the ftp server was running in debug. After being disconnected the ftp server would not accept any more connections until after I reset the ftp server.

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þ Synchronet þ sbbs.dynu.net 2025

On 01-16-19 11:15, mark lewis wrote to Plt <=-

wait, what?? anonymous can upload but not download? you're extremely
brave to allow anonymous uploads... when they find you, they'll eat you alive...

That's a great way to get a board full of malware. Might work for a malware collecting honeypot. ;)


... Proofread carefully to see if you any words out
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On 1/17/19 6:35 PM, Tony Langdon wrote:

On 01-16-19 11:15, mark lewis wrote to Plt <=-

wait, what?? anonymous can upload but not download? you're extremely brave to allow anonymous uploads... when they find you, they'll eat you alive...

That's a great way to get a board full of malware. Might work for a malware >collecting honeypot. ;)

... Proofread carefully to see if you any words out
=== MultiMail/Win v0.51
--- SBBSecho 3.03-Linux
* Origin: Freeway BBS Bendigo,Australia freeway.apana.org.au (3:633/410)
â–  Synchronet â–  Vertrauen â–  Home of Synchronet â–  [vert/cvs/bbs].synchro.net

I disabled it

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þ Synchronet þ sbbs.dynu.net 2025

On 01-20-19 19:42, Plt wrote to Tony Langdon <=-

@VIA: VERT/SBBS
On 1/17/19 6:35 PM, Tony Langdon wrote:

On 01-16-19 11:15, mark lewis wrote to Plt <=-

wait, what?? anonymous can upload but not download? you're extremely brave to allow anonymous uploads... when they find you, they'll eat you alive...

That's a great way to get a board full of malware. Might work for a malware
collecting honeypot. ;)

I disabled it

Good idea. :) I use the FTP service to allow anonymous downloads. Uploads are restricted, as pretty much all of my files come via file echos.


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