1.获取百度返回信息
import socket
host = "www.baidu.com"
port = 80
ip = socket.gethostname(host) #获取访问百度的时候解析出来的IP地址。(vip)
print ("connect server ip = {0}".format(ip))
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((ip, port))
#s.sendall(" ") #python2在sendall()中必须是字符串(str)形式 ,此处不用这种形式。
s.sendall("GET / HTTP/1.1 \r\nHost:www.baidu.com\r\n\r\n".encode("utf-8")) #python3在sendall()中必须是字节(beat)形式
##在制定的http层次的协议上,百度有自己的规定,如果发过去的字符串不符合规定,百度是不会返回信息的,要符合对方的规则。
data = s.recv(2048) #接收数据
print (data)
2.socket实现ssh连接终端
客户端:
import socket
import time
if __name__ == "__main__":
host = "192.168.0.103"
port = 12345
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))
stat = 1
while 1:
cmd = raw_input("{0} >>> ".format(host))
if cmd.lower() == "exit":
exit()
if not cmd:
continue
s.sendall(cmd)
data = s.recv(2048)
if len(data) > 0:
stat = 1
print ("{0}".format(data))
else:
stat += 1
time.sleep(1)
if stat == 5:
break
服务端:
import socket
import commands
import time
host = "192.168.0.103"
port = 12345
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print ("server host = {0} port = {1}".format(host, port))
s.bind((host, port))
s.listen(6)
conn, addrclient = s.accept()
print ("connect from {0}".format(addrclient))
stat = 1
while 1:
cmd = conn.recv(2048)
if len(cmd) > 0:
stat = 1
status, output = commands.getstatusoutput(cmd)
conn.sendall(output)
else:
stat += 1
time.sleep(1)
if stat == 5:
break
这个脚本还欠缺很多功能,也存在不少bug,还待后期去完善和修复,待续ing...
3.专门用来SSH的模块
在python模块里面专门用来ssh连接的模块:paramiko
用网页就可以连接上服务端,基于ssh协议,不需要写服务端
是一个ssh版的客户端
安装paramiko
# pip install paramiko
创建连接脚本:
vim para.py #注意名字不能用paramiko.py,不然脚本执行过程中会有问题。
import time
import paramiko
client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) #用来设置know-host
client.connect(hostname="192.168.0.103", port=22, username="root", password="1q2w3e")
stat = 1
while 1:
cmd = raw_input("{0}>> ".format('192.168.0.103'))
if cmd:
stat = 1
stdin, stdout, stderr = client.exec_command(cmd)
for std in stdout.readlines():
print (std)
else:
stat += 1
time.sleep(1)
if stat == 5:
break
执行即可连接服务器。