import paramiko
import select
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText

client = paramiko.SSHClient()
client.load_system_host_keys()
client.connect('192.168.0.11', port=22, username='root', password='root')
transport = client.get_transport()
channel = transport.open_session()
channel.exec_command("tail -f /var/log/auth.log")
while True:
rl, wl, xl = select.select([channel],[],[],0.0)
if len(rl) > 0:
      output = channel.recv(1024).decode("utf-8")
      print (output)
      fromaddr = "xxxxxxxxxx@gmail.com"
      toaddr = "xxxxxxxx@gmail.com"
      msg = MIMEMultipart()
      msg['From'] = fromaddr
      msg['To'] = toaddr
      msg['Subject'] = "log file alerts"
      msg.attach(MIMEText(output))
      server = smtplib.SMTP('smtp.gmail.com', 587)
      server.starttls()
      server.login(fromaddr, "password")
      text = msg.as_string()
      server.sendmail(fromaddr, toaddr, text)