Question

我可以在命令行中提供以下命令

C:\>cd "C:\Program Files\ExtraPuTTY\Bin"

C:\Program Files\ExtraPuTTY\Bin>putty.exe -ssh root@172.20.0.102 22

这可以帮助我通过PuTTY打开SSH会话。

而我无法在Python脚本中重现它们。

cwd="C://Program Files//ExtraPuTTY//Bin"
COMMAND="ls"
ssh = Popen(['putty.exe -ssh','%s'%HOST, COMMAND,cwd],shell=True,stdout=f,stderr=f)

我看到的错误是

＆＃34; putty.exe -ssh＆＃34;＆＃39;不被识别为内部或外部命令，可操作程序或批处理文件

Answer 1

在putty download page中，下载并安装plink，并确保其位于windows path（$PATH变量）

然后，这个python片段应该可以工作：

import subprocess
cmd='plink -ssh {}@{} -pw {}'.format(user,server,password)
sp = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE,stderr=subprocess.PIPE, shell=True)
sp.stdin.write(stdin)
sp.stdin.close()
stdout= sp.stdout.read()
stderr=sp.stderr.read()
sp.wait()

stdin是用户在终端中键入的命令，stdout和stderr是服务器输出。

在user="root"，server="172.20.0.102 22"和password中填写您的凭据以获取ssh连接

Answer 2

您必须将cwd作为cwd的{{1}}参数传递：

Popen

您应该使用Plink而不是PuTTY来自动执行远程命令。 Plink在其命令行上接受命令（PuTTY没有）：

Popen(['putty.exe -ssh'...], shell=True, stdout=f, stderr=f, cwd=cwd)

Answer 3

我知道问题旁边有一点，但是我找到的最封闭的主题（我希望一周前在该帖子上找到该代码）

我一直在寻找代码来大量检查密码是否处于活动状态，并在可能的情况下进行更改

油灰有几个cli工具，例如plink和pscp whch对很多东西都有用。

这是python 3函数，用于连接到ssh服务器并接受ssh密钥。使用pscp允许自动接受密钥...对于第一次使用可能有用

def TestSSHConnection(IP_Addr,User,Password,verbosity=0, force_plink=False):
#Some infos about returned code
# 0 = Error Or crash
# 1 = Connection ok
# 2 = No connect Password Error
# 3 = SSH key trouble (shit append)
# 4 = Timeout
# 5 = Host Unreachable
# 6 = Connection Crash

out=""
err=""
try:
    if force_plink:
        print("echo y | plink -l "+str(User)+" -pw "+str(Password)+" -batch "+str(IP_Addr)+" exit",)
        ssh=subprocess.Popen("echo y | plink -l "+str(User)+" -pw "+str(Password)+" -batch "+str(IP_Addr)+" exit",shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE,encoding='utf8')#,stdin=subprocess.PIPE)
    else:
        print("echo y | pscp -l "+str(User)+" -pw "+str(Password)+" -ls "+str(IP_Addr)+":/",)
        ssh=subprocess.Popen("echo y | pscp -l "+str(User)+" -pw "+str(Password)+" -ls "+str(IP_Addr)+":/",shell=True,stdout=subprocess.PIPE, stderr=subprocess.PIPE)

    out,err = ssh.communicate()
    try:
        out = out.decode('utf-8')
    except AttributeError as inst:
        pass
    except Exception as inst:
        if verbosity>1:
            print("While decoding stdout: "+str(type(inst)))
    try:
        err = err.decode('utf-8')
    except AttributeError as inst:
        pass
    except Exception as inst:
       print("While decoding stderr: "+str(type(inst)))
    ssh.kill()
    del ssh
except Exception as inst:
    print("Crash"+str(inst))
    return 0

if len(err)>0:
    if 'Unable to open connection' in err or 'Host does not exist' in err:
        if verbosity>0: print("Unreachable")
        result = 5
        if verbosity>1:
            print()
            print("-"*30)
            print(err)
            print("-"*30)

    elif 'Connection timed out' in err:
        result = 4

    elif 'The server\'s host key is not cached in the registry' in err:
        result = 3
        if verbosity>1:
            print()
            print("SSH key Err".center(30,"-"))
            print(err)
            print("-"*30)

    elif 'Access denied' in err:
        result = 2
        if verbosity>2:
            print()
            print("Denied".center(30,"-"))
            print(err)
            print("-"*30)
    else:
        result = 6
        if verbosity>0: print("ConnCrash")
        print("Oups".center(30,"-"))
        print(err)
        print("-"*30)
else:
    if verbosity>0: print("Conn ok")
    result = 1

del out,err
return result

当然，此正义检查连接（并接受ssh密钥）

因此，这是在主机上运行脚本的代码（精确地是密码更改）。为此，您不能使用一种行语法（即使它必须工作，也不会，我尝试过），您必须通过脚本文件并使用plink推送它。

def ChangeMyPassword(IP_Addr,User,Old_Password,New_Password,verbosity=0):
#Some infos about returned code
# 0 = Error Or crash
# 1 = Change Ok
# 2 = Old Password Error
# 3 = SSH key trouble (shit append)
# 4 = Timeout
# 5 = Host Unreachable
# 6 = Connection Crash

out=""
err=""

try:
    path_script = "."+os.sep+"Script_chmdp_"+str(IP_Addr)+".sh"
    if os.path.exists(path_script):os.remove(path_script)
    fic_script = codecs.open(path_script,'w', encoding='utf8')
    fic_script.write('echo -e \"'+str(Old_Password)+'\\n'+str(New_Password)+'\\n'+str(New_Password)+'\" | passwd')
    fic_script.flush()
    fic_script.close()

    cmd = "plink -l "+str(User)+" -pw "+str(Old_Password)+" -batch "+str(IP_Addr)+ " "
    cmd += "-m "+path_script

    print(str(cmd))

    ssh=subprocess.Popen(cmd,shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE,encoding='utf8')#,stdin=subprocess.PIPE)

    out,err = ssh.communicate()
    try:
        out = out.decode('utf-8')
    except AttributeError as inst:
        pass
    except Exception as inst:
        if verbosity>1:
            print("While decoding stdout: "+str(type(inst)))
    try:
        err = err.decode('utf-8')
    except AttributeError as inst:
        pass
    except Exception as inst:
       print("While decoding stderr: "+str(type(inst)))
    ssh.kill()
    del ssh
except Exception as inst:
    print("Crash"+str(inst))
    return 0

if 'all authentication tokens updated successfully' in out:
    if verbosity>0: print("Conn ok")
    result = 1
else:
    if verbosity>0: print("Something goes wrong, hope we do not crash your server :)")
    result = 0
del out,err
return result

因此，现在您有两个功能可以在系统上大量更改密码。

奖金：：获取/ etc / passwd和/ etc / shadow的函数。为什么？用于IT管理员的教育用途，例如“嘿，您在任何地方都可以使用并使用相同的密码，现在所有帐户都可以使用暴力破解。所以收拾你的烂摊子

def GetPass(IP_Addr,User,Password,verbosity=0, force_plink=False):
#Some infos about returned code
# 0 = Error Or crash
# 1 = Connection ok
# 2 = No connect Password Error
# 3 = SSH key trouble (shit append)
# 4 = Timeout
# 5 = Host Unreachable
# 6 = Connection Crash

out=""
err=""
try:

    ssh=subprocess.Popen("echo "+str(Password)+" | plink -l "+str(User)+" -pw "+str(Password)+" -batch "+str(IP_Addr)+" sudo cat /etc/passwd;sudo cat /etc/shadow",shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE,encoding='utf8')#,stdin=subprocess.PIPE)

    out,err = ssh.communicate()
    try:
        out = out.decode('utf-8')
    except AttributeError as inst:
        pass
    except Exception as inst:
        if verbosity>1:
            print("While decoding stdout: "+str(type(inst)))
    try:
        err = err.decode('utf-8')
    except AttributeError as inst:
        pass
    except Exception as inst:
       print("While decoding stderr: "+str(type(inst)))
    ssh.kill()
    del ssh
except Exception as inst:
    print("Crash"+str(inst))
    return 0

if len(err)>0:
    if 'Unable to open connection' in err or 'Host does not exist' in err:
        if verbosity>0: print("Unreachable")
        result = 5
        if verbosity>1:
            print()
            print("-"*30)
            print(err)
            print("-"*30)

    elif 'Connection timed out' in err:
        result = 4

    elif 'The server\'s host key is not cached in the registry' in err:
        result = 3
        if verbosity>1:
            print()
            print("SSH key Err".center(30,"-"))
            print(err)
            print("-"*30)

    elif 'Access denied' in err:
        result = 2
        if verbosity>2:
            print()
            print("Denied".center(30,"-"))
            print(err)
            print("-"*30)
    else:
        result = 6
        if verbosity>0: print("ConnCrash")
        print("Oups".center(30,"-"))
        print(err)
        print("-"*30)
else:
    if verbosity>0: print("Conn ok")
    result = out

del out,err
return result

更多说明：

如果您不使用shell = True，则不会得到输出，并且它不起作用，我不知道为什么。

我还尝试了异步通信来逐行发送comand，但这不起作用。

我还尝试了ssh命令（是的，现在它在Windows \ o /中存在），但它对我而言不起作用。

希望有一天能对某人有所帮助，一周前会对我有很大帮助：）

通过PuTTY进行SSH的Python脚本

3 个答案: