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CR7sun
V2EX  ›  Python

请问 Python 利用 telnetlib 登录被 ACL 拒绝该如何处理异常?

  •  
  •   CR7sun · Dec 24, 2020 · 2201 views
    This topic created in 1993 days ago, the information mentioned may be changed or developed.

    请问用 python 的 telnetlib 进行 telnet 登录时,连接上去又被 ACL 拒了然后代码报错。请问该如何处理这个异常,结束这次登陆尝试?

     try:
        self.tn = telnetlib.Telnet(host_ip,port=23,timeout=2)
     except:
        logging.warning("failed to connect to host:%s" %host_ip)
        return False
     self.tn.read_until(b'Username:', timeout=3)
     self.tn.write(user_name.encode('ascii') + b'\n')
     self.tn.read_until(b'Password:', timeout=3)
     self.tn.write(pass_word.encode('ascii') + b'\n') 
    

    手动登录测试截图:

    https://imgchr.com/i/rgKksH

    代码报错截图:

    https://imgchr.com/i/rgKFQe

    1 replies    2020-12-25 11:12:13 +08:00
    julyclyde
        1
    julyclyde  
       Dec 25, 2020
    这种都是先建立连接再断开连接的。错误信息写的很明白啊 EOFError 你试试 except 这个
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