Date: Thu, 26 Mar 2015 14:44:40 +0800 From: Wu ShuKun <wsk@gddsn.org.cn> To: net@freebsd.org, current@freebsd.org, stable@freebsd.org, questions@freebsd.org Subject: SSH hung with an OpenSSH_6.6.1p1 --> OpenSSH_5.8p2_hpn13v11 Message-ID: <5513AAD8.9060505@gddsn.org.cn>
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greeting! ssh connection failed by using a new version SSH to and old one. Below is the symptoms which on a same network. Connection is Okay with old version SSH %ssh -V OpenSSH_5.4p1 FreeBSD-20100308, OpenSSL 0.9.8q 2 Dec 2010 %ssh -v 10.41.172.19 OpenSSH_5.4p1 FreeBSD-20100308, OpenSSL 0.9.8q 2 Dec 2010 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Connecting to 10.41.172.19 [10.41.172.19] port 22. debug1: Connection established. debug1: identity file /home/wsk/.ssh/id_rsa type -1 debug1: identity file /home/wsk/.ssh/id_rsa-cert type -1 debug1: identity file /home/wsk/.ssh/id_dsa type -1 debug1: identity file /home/wsk/.ssh/id_dsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.8p2_hpn13v11 FreeBSD-20110503 debug1: match: OpenSSH_5.8p2_hpn13v11 FreeBSD-20110503 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.4p1 FreeBSD-20100308 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY The authenticity of host '10.41.172.19 (10.41.172.19)' can't be established. RSA key fingerprint is ab:81:83:79:6a:d8:29:23:a0:51:1d:e6:f0:aa:ce:d6. Are you sure you want to continue connecting (yes/no)? --- failed with Latest SSH: % ssh -V OpenSSH_6.6.1p1, OpenSSL 1.0.1l-freebsd 15 Jan 2015 % ssh -v 10.41.172.19 OpenSSH_6.6.1p1, OpenSSL 1.0.1l-freebsd 15 Jan 2015 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Connecting to 10.41.172.19 [10.41.172.19] port 22. debug1: Connection established. debug1: identity file /home/wsk/.ssh/id_rsa type -1 debug1: identity file /home/wsk/.ssh/id_rsa-cert type -1 debug1: identity file /home/wsk/.ssh/id_dsa type -1 debug1: identity file /home/wsk/.ssh/id_dsa-cert type -1 debug1: identity file /home/wsk/.ssh/id_ecdsa type -1 debug1: identity file /home/wsk/.ssh/id_ecdsa-cert type -1 debug1: identity file /home/wsk/.ssh/id_ed25519 type -1 debug1: identity file /home/wsk/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.6.1_hpn13v11 FreeBSD-20140420 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.8p2_hpn13v11 FreeBSD-20110503 debug1: match: OpenSSH_5.8p2_hpn13v11 FreeBSD-20110503 pat OpenSSH_5* compat 0x0c000000 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: sending SSH2_MSG_KEX_ECDH_INIT debug1: expecting SSH2_MSG_KEX_ECDH_REPLY Connection closed by 10.41.172.19 any ideas?
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