Salve a tutti,
sono nuovo di python e finora sono riuscito a cavarmela da autodidatta.
Ho trovato uno script (che fa uso di paramiko) e l'ho modificato secondo
mie esigenze. Avevo necessità di testare degli accessi SSH (con user e pwd
già cablata) partendo da un array e mettendo
il tutto dentro un ciclo, ma sembra non andare, l'errore che leggo è il
seguente:
Could not SSH to ['localhost', '127.0.0.1'], waiting for it to start
Could not connect to ['localhost', '127.0.0.1']. Giving up
Sembra non prendere i valori host uno per volta, ma tutti insieme, ecco lo
script:
import sys
import time
import select
import paramiko
i = 1
host = ['localhost', '127.0.0.1', '192.168.2.2']
for item in host:
while True:
print 'Trying to connect to %s (%i/3)' % (host, i)
try:
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(host, port=22, username='centos',
password='reverse')
print "Connected to %s" % host
break
except paramiko.AuthenticationException:
print "Authentication failed when connecting to %s"
% host
sys.exit(1)
except:
print "Could not SSH to %s, waiting for it to
start" % host
i += 1
time.sleep(2)
# If we could not connect within time limit
if i == 3:
print "Could not connect to %s. Giving up" % host
sys.exit(1)
# Send the command (non-blocking)
stdin, stdout, stderr = ssh.exec_command("uname")
# Wait for the command to terminate
while not stdout.channel.exit_status_ready():
# Only print data if there is data to read in the channel
if stdout.channel.recv_ready():
rl, wl, xl = select.select([stdout.channel], [],
[], 0.0)
if len(rl) > 0:
# Print data from stdout
print '-------------------------------'
print stdout.channel.recv(1024),
# Send the command (non-blocking)
stdin, stdout, stderr = ssh.exec_command("hostname")
# Wait for the command to terminate
while not stdout.channel.exit_status_ready():
# Only print data if there is data to read in the channel
if stdout.channel.recv_ready():
rl, wl, xl = select.select([stdout.channel], [],
[], 0.0)
if len(rl) > 0:
# Print data from stdout
print stdout.channel.recv(1024),
# Send the command (non-blocking)
stdin, stdout, stderr = ssh.exec_command("hostname -I")
# Wait for the command to terminate
while not stdout.channel.exit_status_ready():
# Only print data if there is data to read in the channel
if stdout.channel.recv_ready():
rl, wl, xl = select.select([stdout.channel], [],
[], 0.0)
if len(rl) > 0:
# Print data from stdout
print stdout.channel.recv(1024),
print '-------------------------------'
#
# Disconnect from the host
#
print "Command done, closing SSH connection."
ssh.close()
Qualcuno mi illumina?
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