Paramiko and simple multi-process

Paramiko specifically not much to say, see other information

Yum Insatll python-devel

1.PyCrypto Installation

TAR-XF pycrypto-2.6.1.tar.gzcd pycrypto-2.6.1/python setup.py build && python setup.py install

2.ECDSA Installation

Unzip PYTHON-ECDSA-MASTER.ZIPCD Python-ecdsa-masterpython setup.py Install

3.paramiko Installation

Unzip PARAMIKO-MASTER.ZIPCD Paramiko-masterpython setup.py build && python setup.py install

4. Error:

>>> Import Paramiko/usr/lib64/python2.6/site-packages/crypto/util/number.py:57:powminsecurewarning:not  Using Mpz_powm_sec.  You should rebuild using LIBGMP >= 5 to avoid timing attack vulnerability.  _warn ("Not using MPZ_POWM_SEC. You should rebuild using LIBGMP >= 5 to avoid timing attack vulnerability. ", powminsecurewarning) >>> exit ()

5. Simple Multi-process:

#!/usr/bin/python   import paramiko  import osimport sysimport  Timeimport multiprocessingimport datetimeip_list = []def execmd (Host,cmd):     time.sleep (2)     hostname=host    username= "Ckl"     ssh=paramiko. Sshclient ()     ssh.load_system_host_keys ()     privatekey =  Os.path.expanduser ('/home/chenkangle/key/ckl.pem ')     key = paramiko. Rsakey.from_private_key_file (Privatekey)     ssh.connect (hostname=hostname,username= Username,pkey = key)     stdin,stdout,stderr=ssh.exec_command (cmd)      print stdout.read ()     ssh.close () Def upfile (Host_ip,local_path, Remote_path):     time.sleep (2)     privatekey =  Os.path.expanduser ('/hoMe/ckl/.ssh/id_rsa ')     key=paramiko. Rsakey.from_private_key_file (Privatekey)     scp = paramiko. Transport ((host_ip, 22))     scp.connect (username= ' Ckl ',  pkey=key)      sftp = paramiko. Sftpclient.from_transport (SCP)     src = local_path    des  = remote_path    file=os.path.basename (SRC)     print  ' = ' *50    print  ' start to upload file %s  '  %  Datetime.datetime.now ()     print  ' upload file: ',file     Sftp.put (Local_path,remote_path)     scp.close ()     print  ' \033[1; 32m upload file success %s \033[0m '  % datetime.datetime.now ()      print  ' = ' *50def downfile (host_ip,remote_paTh,local_path):     privatekey = os.path.expanduser ('/home/chenkangle/key/ckl.pem ')     key=paramiko. Rsakey.from_private_key_file (Privatekey)     scp = paramiko. Transport ((host_ip, 22))     scp.connect (username= ' Ckl ',  pkey=key)      sftp = paramiko. Sftpclient.from_transport (SCP)     src = remote_path    file= Os.path.basename (src)     des = local_path    print  ' = ' * 50    print  ' start to download file %s  '  %  Datetime.datetime.now ()     print  ' download file: ',file     Sftp.get (Src,des)     scp.close ()     print  ' \033[1;32m  download file success %s \033[0m '  % datetime.datetimE.now ()     print  ' = ' *50def all_ip ():     f = file (' 2.txt ', ' R ')     c = f.readlines ()     for x in  C:        ip = x.split (' \ n ') [0]         ip_list.append (IP)     f.close () if __name__== ' __main__ ':     ALL_IP ()     pool = multiprocessing. Pool (processes=30)     threads = []    print  "Begin ... "    for i in ip_list:          #pool. Apply_async (Execmd, (I,))         pool.apply_async (Upfile, (i , '/home/chenkangle/php_0420.tar.gz ', '/tmp/soft/php_0420.tar.gz '))     pool.close ()      pool.join ()     foR res in threads:        print res.get ()      print  "Process done."

6. Description:

2.txt is a list file

The contents are as follows:

10.1.1.110.1.1.210.1.1.3 ....

Control the processes running concurrently through the process Pool poll bulk Operations processes=30

This article is from the "OPS rookie" blog, please be sure to keep this source http://ckl893.blog.51cto.com/8827818/1766228

Paramiko and simple multi-process