Paramiko“无效命令"尝试 Vyatta 的非标准命令时 [英] Paramiko "Invalid command" when trying non-standard command for Vyatta

问题描述

我刚刚尝试使用 Paramiko 进行 SSH 连接，将我的 Python/Django 应用程序与 Vyatta 服务器连接起来.不幸的是，当我尝试运行 show interfaces 时，它会抛出无效命令".但是，如果尝试从该服务器手动 SSH，它工作正常.我也试过 '/vbash -c "show interfaces"' - 结果相同.

I've just tried to connect my Python/Django app with Vyatta server using Paramiko for SSHing. Unfortunately, when I try to run show interfaces it throws "Invalid command". However, if try to SSH manually from that server, it works fine. I tried also '/vbash -c "show interfaces"' - the same result.

ssh = paramiko.SSHClient()
ssh.connect('10.0.0.1','vyatta','vyatta')
stdin, stdout, stderr = ssh.exec_command('show interfaces')
# or stdin, stdout, stderr = ssh.exec_command('vbash -c "show interfaces"')
print '-'.join(stdout)
print '-'.join(stderr)

推荐答案

如前所述，您可以使用 vyatta-cfg-cmd-wrapper 并设置任何配置节点:

As mentioned earlier you can use vyatta-cfg-cmd-wrapper and set any configuration node:

<import stuff>

command = """
    /opt/vyatta/sbin/vyatta-cfg-cmd-wrapper begin
    /opt/vyatta/sbin/vyatta-cfg-cmd-wrapper set system host-name newhostname
    /opt/vyatta/sbin/vyatta-cfg-cmd-wrapper commit
    /opt/vyatta/sbin/vyatta-cfg-cmd-wrapper save
    """

sshobj = paramiko.SSHClient()
sshobj.set_missing_host_key_policy(paramiko.AutoAddPolicy())
sshobj.connect(IP,username=login,password=sshpass)
stdin,stdout,stderr=sshobj.exec_command(command)
print ''.join(stdout)
sshobj.close()

结果如下:

user@hostname$ python vyatta.py

Saving configuration to '/config/config.boot'...

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