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question about putty logs with exec channel requests's
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terr...@yahoo.com
May 17, 2013, 12:39:30 PM5/17/13
to
So in PuTTY Configuration I set Connection -> SSH -> Remote command to "cat filename.ext" and enable logging.
Per the log file PuTTY receives a bunch of SSH2_MSG_CHANNEL_DATA packets (as I'd expect) but it also sends a lot of SSH2_MSG_CHANNEL_DATA packets (which surprises me). eg.
Incoming packet #0x3a, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 01 00 00 00 0c cb 22 91 f0 2a 7a a3 ec f5 ........"..*z...
...
00000cd0 b1 85 09 ...
Outgoing packet #0x1b5, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1b6, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1b7, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1b8, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1b9, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1ba, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1bb, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1bc, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1bd, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1be, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1bf, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1c0, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
My question is... why?
Per the log file PuTTY receives a bunch of SSH2_MSG_CHANNEL_DATA packets (as I'd expect) but it also sends a lot of SSH2_MSG_CHANNEL_DATA packets (which surprises me). eg.
Incoming packet #0x3a, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 01 00 00 00 0c cb 22 91 f0 2a 7a a3 ec f5 ........"..*z...
...
00000cd0 b1 85 09 ...
Outgoing packet #0x1b5, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1b6, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1b7, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1b8, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1b9, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1ba, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1bb, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1bc, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1bd, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1be, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1bf, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
Outgoing packet #0x1c0, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 00 00 00 00 00 05 50 75 54 54 59 ........PuTTY
My question is... why?
terr...@yahoo.com
May 17, 2013, 12:46:12 PM5/17/13
to
On Friday, May 17, 2013 11:39:30 AM UTC-5, terr...@yahoo.com wrote:
> ...
It looks like some of the incoming SSH2_MSG_CHANNEL_DATA logs have the word PuTTY repeated over and over in them, as well, towards the end:
Incoming packet #0x36, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 01 00 00 00 09 dd f1 de e3 55 f6 dc d5 ea ...........U....
...
000008b0 ce 27 39 1c 1c fe 9e c7 ee cc 20 f1 4a b7 2d 87 .'9....... .J.-.
000008c0 6b 9c 59 50 75 54 54 59 50 75 54 54 59 50 75 54 k.YPuTTYPuTTYPuT
000008d0 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 TYPuTTYPuTTYPuTT
000008e0 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 YPuTTYPuTTYPuTTY
000008f0 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 PuTTYPuTTYPuTTYP
00000900 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 uTTYPuTTYPuTTYPu
00000910 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 TTYPuTTYPuTTYPuT
00000920 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 TYPuTTYPuTTYPuTT
00000930 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 YPuTTYPuTTYPuTTY
00000940 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 PuTTYPuTTYPuTTYP
00000950 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 uTTYPuTTYPuTTYPu
00000960 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 TTYPuTTYPuTTYPuT
00000970 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 TYPuTTYPuTTYPuTT
00000980 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 YPuTTYPuTTYPuTTY
00000990 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 PuTTYPuTTYPuTTYP
000009a0 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 uTTYPuTTYPuTTYPu
000009b0 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 TTYPuTTYPuTTYPuT
000009c0 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 TYPuTTYPuTTYPuTT
000009d0 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 YPuTTYPuTTYPuTTY
000009e0 50 75 54 54 59 PuTTY
I download the file via SFTP and the string PuTTY does not occur in it. Yet I do "cat filename.ext" even via PuTTY's interactive shell and the last few blocks of the file contain the string PuTTY a bazillion times. Then it seems that the shell (not PuTTY but the shell) just hangs until I do Ctrl + C.
Any ideas?
> ...
It looks like some of the incoming SSH2_MSG_CHANNEL_DATA logs have the word PuTTY repeated over and over in them, as well, towards the end:
Incoming packet #0x36, type 94 / 0x5e (SSH2_MSG_CHANNEL_DATA)
00000000 00 00 01 00 00 00 09 dd f1 de e3 55 f6 dc d5 ea ...........U....
...
000008b0 ce 27 39 1c 1c fe 9e c7 ee cc 20 f1 4a b7 2d 87 .'9....... .J.-.
000008c0 6b 9c 59 50 75 54 54 59 50 75 54 54 59 50 75 54 k.YPuTTYPuTTYPuT
000008d0 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 TYPuTTYPuTTYPuTT
000008e0 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 YPuTTYPuTTYPuTTY
000008f0 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 PuTTYPuTTYPuTTYP
00000900 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 uTTYPuTTYPuTTYPu
00000910 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 TTYPuTTYPuTTYPuT
00000920 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 TYPuTTYPuTTYPuTT
00000930 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 YPuTTYPuTTYPuTTY
00000940 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 PuTTYPuTTYPuTTYP
00000950 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 uTTYPuTTYPuTTYPu
00000960 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 TTYPuTTYPuTTYPuT
00000970 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 TYPuTTYPuTTYPuTT
00000980 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 YPuTTYPuTTYPuTTY
00000990 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 PuTTYPuTTYPuTTYP
000009a0 75 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 uTTYPuTTYPuTTYPu
000009b0 54 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 TTYPuTTYPuTTYPuT
000009c0 54 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 TYPuTTYPuTTYPuTT
000009d0 59 50 75 54 54 59 50 75 54 54 59 50 75 54 54 59 YPuTTYPuTTYPuTTY
000009e0 50 75 54 54 59 PuTTY
I download the file via SFTP and the string PuTTY does not occur in it. Yet I do "cat filename.ext" even via PuTTY's interactive shell and the last few blocks of the file contain the string PuTTY a bazillion times. Then it seems that the shell (not PuTTY but the shell) just hangs until I do Ctrl + C.
Any ideas?
terr...@yahoo.com
May 17, 2013, 2:05:21 PM5/17/13
to
On Friday, May 17, 2013 11:39:30 AM UTC-5, terr...@yahoo.com wrote:
http://stackoverflow.com/questions/12039266/strange-occurance-of-string-putty
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