2013-02-25 84 views
0

我正在使用Paramiko腳本連接思科設備,但失敗。不過,我可以通過正常的SSH連接設備,這裏是Python腳本:使用Paramiko連接網絡設備

#!/usr/bin/env python 
import paramiko,os 
ssh = paramiko.SSHClient() 
paramiko.common.logging.basicConfig(level=paramiko.common.DEBUG) 
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) 
ssh.connect('10.3.207.22',username='admin',password='') 
stdin,stdout,stderr=ssh.exec_command("help") 
print stdout.read() 
ssh.close() 

調試信息顯示

DEBUG:paramiko.transport:starting thread (client mode): 0x2839510L 
INFO:paramiko.transport:Connected (version 1.99, client OpenSSH_4.3) 
DEBUG:paramiko.transport:kex algos:['diffie-hellman-group-exchange-sha1', 'diffie-hellman-group14-sha1', 'diffie-hellman-group1-sha1'] server key:['ssh-rsa', 'ssh-dss'] client encrypt:['aes128-cbc', '3des-cbc', 'blowfish-cbc', 'cast128-cbc', 'arcfour128', 'arcfour256', 'arcfour', 'aes192-cbc', 'aes256-cbc', '[email protected]', 'aes128-ctr', 'aes192-ctr', 'aes256-ctr'] server encrypt:['aes128-cbc', '3des-cbc', 'blowfish-cbc', 'cast128-cbc', 'arcfour128', 'arcfour256', 'arcfour', 'aes192-cbc', 'aes256-cbc', '[email protected]', 'aes128-ctr', 'aes192-ctr', 'aes256-ctr'] client mac:['hmac-md5', 'hmac-sha1', 'hmac-ripemd160', '[email protected]', 'hmac-sha1-96', 'hmac-md5-96'] server mac:['hmac-md5', 'hmac-sha1', 'hmac-ripemd160', '[email protected]', 'hmac-sha1-96', 'hmac-md5-96'] client compress:['none', '[email protected]'] server compress:['none', '[email protected]'] client lang:[''] server lang:[''] kex follows?False 
DEBUG:paramiko.transport:Ciphers agreed: local=aes128-ctr, remote=aes128-ctr 
DEBUG:paramiko.transport:using kex diffie-hellman-group1-sha1; server key type ssh-rsa; cipher: local aes128-ctr, remote aes128-ctr; mac: local hmac-sha1, remote hmac-sha1; compression: local none, remote none 
DEBUG:paramiko.transport:Switch to new keys ... 
DEBUG:paramiko.transport:Adding ssh-rsa host key for 10.3.207.22: d2fb806d119eebe874ed2b9be3e7e7f7 
DEBUG:paramiko.transport:Trying discovered key e4ddbd54b29d935363ad027da9f28a1d in /home/chainwu/.ssh/id_rsa 
DEBUG:paramiko.transport:userauth is OK 
INFO:paramiko.transport:Authentication (publickey) failed. 
DEBUG:paramiko.transport:userauth is OK 
INFO:paramiko.transport:Authentication (password) successful! 
DEBUG:paramiko.transport:[chan 1] Max packet in: 34816 bytes 
DEBUG:paramiko.transport:[chan 1] Max packet out: 32768 bytes 
INFO:paramiko.transport:Secsh channel 1 opened. 
INFO:paramiko.transport:Disconnect (code 2): Packet integrity error. 
Traceback (most recent call last): 
File "icos-ssh.py", line 12, in <module> 
stdin,stdout,stderr=ssh.exec_command("help") 
File "/usr/local/lib/python2.7/dist-packages/paramiko/client.py", line 370, in exec_command 
chan.exec_command(command) 
File "/usr/local/lib/python2.7/dist-packages/paramiko/channel.py", line 213, in exec_command 
self._wait_for_event() 
File "/usr/local/lib/python2.7/dist-packages/paramiko/channel.py", line 1114, in _wait_for_event 
raise e 
paramiko.SSHException: Channel closed. 

這裏是SSH日誌

[email protected] paramico-example $ ssh -v [email protected] 
OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012 
debug1: Reading configuration data /etc/ssh/ssh_config 
debug1: /etc/ssh/ssh_config line 19: Applying options for * 
debug2: ssh_connect: needpriv 0 
debug1: Connecting to 10.3.207.22 [10.3.207.22] port 22. 
debug1: Connection established. 
debug1: identity file /home/chainwu/.ssh/id_rsa type 1 
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048 
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048 
debug1: identity file /home/chainwu/.ssh/id_rsa-cert type -1 
debug1: identity file /home/chainwu/.ssh/id_dsa type -1 
debug1: identity file /home/chainwu/.ssh/id_dsa-cert type -1 
debug1: identity file /home/chainwu/.ssh/id_ecdsa type -1 
debug1: identity file /home/chainwu/.ssh/id_ecdsa-cert type -1 
debug1: Remote protocol version 1.99, remote software version OpenSSH_4.3 
debug1: match: OpenSSH_4.3 pat OpenSSH_4* 
debug1: Enabling compatibility mode for protocol 2.0 
debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1 
debug2: fd 3 setting O_NONBLOCK 
debug1: SSH2_MSG_KEXINIT sent 
debug1: SSH2_MSG_KEXINIT received 
debug2: kex_parse_kexinit: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 
debug2: kex_parse_kexinit: [email protected],[email protected],ssh-rsa,[email protected],[email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-dss 
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] 
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] 
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 
debug2: kex_parse_kexinit: none,[email protected],zlib 
debug2: kex_parse_kexinit: none,[email protected],zlib 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: first_kex_follows 0 
debug2: kex_parse_kexinit: reserved 0 
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss 
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,[email protected],aes128-ctr,aes192-ctr,aes256-ctr 
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,[email protected],aes128-ctr,aes192-ctr,aes256-ctr 
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 
debug2: kex_parse_kexinit: none,[email protected] 
debug2: kex_parse_kexinit: none,[email protected] 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: first_kex_follows 0 
debug2: kex_parse_kexinit: reserved 0 
debug2: mac_setup: found hmac-md5 
debug1: kex: server->client aes128-ctr hmac-md5 none 
debug2: mac_setup: found hmac-md5 
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 
debug2: dh_gen_key: priv key bits set: 140/256 
debug2: bits set: 1006/2048 
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent 
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY 
debug1: Server host key: RSA d2:fb:80:6d:11:9e:eb:e8:74:ed:2b:9b:e3:e7:e7:f7 
debug1: Host '10.3.207.22' is known and matches the RSA host key. 
debug1: Found key in /home/chainwu/.ssh/known_hosts:10 
debug2: bits set: 1006/2048 
debug1: ssh_rsa_verify: signature correct 
debug2: kex_derive_keys 
debug2: set_newkeys: mode 1 
debug1: SSH2_MSG_NEWKEYS sent 
debug1: expecting SSH2_MSG_NEWKEYS 
debug2: set_newkeys: mode 0 
debug1: SSH2_MSG_NEWKEYS received 
debug1: Roaming not allowed by server 
debug1: SSH2_MSG_SERVICE_REQUEST sent 
debug2: service_accept: ssh-userauth 
debug1: SSH2_MSG_SERVICE_ACCEPT received 
debug2: key: /home/chainwu/.ssh/id_rsa (0x7f9530e33950) 
debug2: key: /home/chainwu/.ssh/id_dsa ((nil)) 
debug2: key: /home/chainwu/.ssh/id_ecdsa ((nil)) 
debug1: Authentications that can continue: publickey,password,keyboard-interactive 
debug1: Next authentication method: publickey 
debug1: Offering RSA public key: /home/chainwu/.ssh/id_rsa 
debug2: we sent a publickey packet, wait for reply 
debug1: Authentications that can continue: publickey,password,keyboard-interactive 
debug1: Trying private key: /home/chainwu/.ssh/id_dsa 
debug1: Trying private key: /home/chainwu/.ssh/id_ecdsa 
debug2: we did not send a packet, disable method 
debug1: Next authentication method: keyboard-interactive 
debug2: userauth_kbdint 
debug2: we sent a keyboard-interactive packet, wait for reply 
debug1: Authentications that can continue: publickey,password,keyboard-interactive 
debug2: we did not send a packet, disable method 
debug1: Next authentication method: password 
[email protected]'s password: 
debug2: we sent a password packet, wait for reply 
debug1: Authentication succeeded (password). 
Authenticated to 10.3.207.22 ([10.3.207.22]:22). 
debug1: channel 0: new [client-session] 
debug2: channel 0: send open 
debug1: Entering interactive session. 
debug2: callback start 
debug2: client_session2_setup: id 0 
debug2: fd 3 setting TCP_NODELAY 
debug2: channel 0: request pty-req confirm 1 
debug1: Sending environment. 
debug1: Sending env LANG = en_US.UTF-8 
debug2: channel 0: request env confirm 0 
debug2: channel 0: request shell confirm 1 
debug2: callback done 
debug2: channel 0: open confirm rwindow 0 rmax 32768 
debug2: channel_input_status_confirm: type 99 id 0 
debug2: PTY allocation request accepted on channel 0 
debug2: channel 0: rcvd adjust 131072 
debug2: channel_input_status_confirm: type 99 id 0 
debug2: shell request accepted on channel 0 

(BCM-EVAL) >help 

HELP: 
Special keys: 
    DEL, BS .... delete previous character 
    Ctrl-A .... go to beginning of line 
    Ctrl-E .... go to end of line 
    Ctrl-F .... go forward one character 
    Ctrl-B .... go backward one character 
    Ctrl-D .... delete current character 
    Ctrl-U, X .. delete to beginning of line 
    Ctrl-K .... delete to end of line 
    Ctrl-W .... delete previous word 
    Ctrl-T .... transpose previous character 
    Ctrl-P .... go to previous line in history buffer 
    Ctrl-R .... rewrites or pastes the line 
    Ctrl-N .... go to next line in history buffer 
    Ctrl-Y .... print last deleted character 
    Ctrl-Q .... enables serial flow 
    Ctrl-S .... disables serial flow 
    Ctrl-Z .... return to root command prompt 
    Tab, <SPACE> command-line completion 
    Exit .... go to next lower command prompt 
    ?  .... list choices 

我不知道我可以讓Paramiko像ssh一樣工作嗎?我錯過了一些配置設置嗎?提前致謝。

回答

0

你試試加載system_host_keys

ssh_client = paramiko.SSHClient() 
ssh_client.load_system_host_keys() 
ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) 
ssh_client.connect(host, username=username, password=password, timeout=3) 
ssh_stdin, ssh_stdout, ssh_stderr = ssh_client.exec_command(commands) 
ssh_client.close() 

也試圖利用例外:

except paramiko.AuthenticationException: 
     log.debug("Authentication problem to -- Server: %s"%host) 
     output = 'Authentication Error' 
except socket.error: 
     log.debug("Comunication problem to -- Server: %s"%host) 
     output = 'Communication Error' 
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