I ran into a weird problem yesterday where Putty can't connect to my
OpenSSH/Sol box (and still can't ever since). On the Putty side I get the
error message:
"internal fault: chaos in SSH 2 transport layer"
I've attached the "sshd -d -d -d" syslog output.
Any ideas what's going wrong here? From a layman's point of view, it
would appear that Putty and OpenSSH can't decide on key algorithms... but
why would this happen? I use Putty to connect to other
OpenSSH2.9.9p2/Sol8 installs (the same compiled code) and it works fine...
Thanks,
Ed
Ed Phillips <ed at udel.edu> University of Delaware (302) 831-6082
Systems Programmer III, Network and Systems Services
finger -l ed at polycut.nss.udel.edu for PGP public key
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Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.info]
Connection from 128.175.13.182 port 1096
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.info]
Connection from 128.175.13.182 port 1096
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5641]: [ID 800047 local4.debug]
debug1: Forked child 5848.
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: Client protocol version 2.0; client software version PuTTY
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: no match: PuTTY
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.info]
Enabling compatibility mode for protocol 2.0
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.info]
Enabling compatibility mode for protocol 2.0
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: Local version string SSH-1.99-OpenSSH_2.9.9p2
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: Rhosts Authentication disabled, originating port not trusted.
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: list_hostkey_types: ssh-rsa
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: SSH2_MSG_KEXINIT sent
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: SSH2_MSG_KEXINIT received
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit:
diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: ssh-rsa
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit:
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael128-cbc,rijndael192-cbc,rijndael256-cbc,rijndael-cbc
at lysator.liu.se
Nov 27 09:51:03 polycut.nss.udel.edu last message repeated 1 time
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at
openssh.com,hmac-sha1-96,hmac-md5-96
Nov 27 09:51:03 polycut.nss.udel.edu last message repeated 1 time
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: none,zlib
Nov 27 09:51:03 polycut.nss.udel.edu last message repeated 1 time
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit:
Nov 27 09:51:03 polycut.nss.udel.edu last message repeated 1 time
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: first_kex_follows 0
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: reserved 0
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: diffie-hellman-group1-sha1
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: ssh-dss
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: 3des-cbc,blowfish-cbc,3des-cbc
Nov 27 09:51:03 polycut.nss.udel.edu last message repeated 1 time
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: hmac-sha1,hmac-md5,none
Nov 27 09:51:03 polycut.nss.udel.edu last message repeated 1 time
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: none,zlib,none
Nov 27 09:51:03 polycut.nss.udel.edu last message repeated 1 time
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit:
Nov 27 09:51:03 polycut.nss.udel.edu last message repeated 1 time
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: first_kex_follows 0
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: kex_parse_kexinit: reserved 0
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: mac_init: found hmac-sha1
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: kex: client->server 3des-cbc hmac-sha1 none
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug2: mac_init: found hmac-sha1
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: kex: server->client 3des-cbc hmac-sha1 none
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.crit] fatal:
no hostkey alg
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.crit] fatal:
no hostkey alg
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.crit] fatal:
no hostkey alg
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: Calling cleanup 0x5e4f8(0x0)
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: Calling cleanup 0x67ec0(0x0)
Nov 27 09:51:03 polycut.nss.udel.edu sshd[5848]: [ID 800047 local4.debug]
debug1: writing PRNG seed to file //.ssh/prng_seed