Özel yazılımda SSH sorunu için sorun giderme ipuçları


1

Satın aldığımız donanım parçasıyla kanal oluşturma konusunda sorun yaşıyorum. Hem Putty (Windows'ta) hem de Ubuntu'nun CLI'sini kullanarak VXworks OS'ye SSH yapabilirim, ancak Ruby veya Python kullanarak donanıma komut gönderdiğimde "uzak ana bilgisayar tarafından kapatılan bağlantı" alıyorum.

Aşağıdakileri yaptım:

  1. Farklı işletim sistemlerinde farklı uygulamalarla farklı programlama dilleri denedim
  2. 4.0 alfa dahil olmak üzere Ruby ve Net :: SSH'nin farklı sürümleri denendi
  3. Donanıma 22, donanıma erişim izni
  4. Bir zaman aşımı ekleme
  5. Belirli Kex anahtarlarını belirtme
  6. KEXIT'i daraltmak (Sanırım denir)
  7. Mühendislerle temasa geçti. Sonunda olduğuna inanmıyorlar, ancak zinciri yükseltiyorlar
  8. Gerçekten çalıştığı güvenliCRT içindeki Python betiği.

Bir sonraki kontrol etmem gerekenler neler? Fikirlerim tükendi.


Bir mühendis dedi ki:

"Komut dosyalarının komutlar arasında arabelleğe alınması gerekir. Bir komut dosyası için securecrt kullandım."

İşte birime bağlanmama izin veren secureCRT betiği. Bunun konuyla ilgili olduğuna tam olarak emin değilim:

host = "x.x.x.x"
user = "admin"

def main():
    # Prompt for a password instead of embedding it in a script...
    #
    passwd = crt.Dialog.Prompt("Enter password for " + host, "Login", "", True)

    # Build a command-line string to pass to the Connect method.
    cmd = "/SSH2 /L %s /PASSWORD %s /C 3DES /M MD5 %s" % (user, passwd, host)
    crt.Session.Connect(cmd)


main()

İşte VXworks sisteminden gelen günlük:

logged out from slot 1
    [82]: JAN 23 05:13:17: alert  : 1/1/1028: clitask1: User admin@x.x.x.x logged in on slot 1
    [83]: JAN 23 05:17:41: debug  : 1/1/1038: sshs: tSshServer: accept socket active.
    [84]: JAN 23 05:17:41: debug  : 1/1/1038: sshs: tSshServer: session index = 0 remote IP x.x.x.x.
    [85]: JAN 23 05:17:41: debug  : 1/1/1038: sshs: connInstance = 4218
    [86]: JAN 23 05:17:42: debug  : 1/1/1078: sshs: AuthPassword Callback: conn: 4218: user = admin
    [87]: JAN 23 05:17:42: alert  : 1/1/1078: clitask0: User admin@x.x.x.x logged in on slot 1
    [88]: JAN 23 05:17:42: debug  : 1/1/1078: sshs: RxCallback: session: 0 event: OPEN
    [89]: JAN 23 05:17:42: debug  : 1/1/1078: sshs: SshInTask: after while() loop, status = -6911, cleanUp = 0
    [90]: JAN 23 05:17:42: debug  : 1/1/1078: sshs: _SshExit(0, 0) called
    [91]: JAN 23 05:19:43: debug  : 1/1/1038: sshs: tSshServer: accept socket active.
    [92]: JAN 23 05:19:43: debug  : 1/1/1038: sshs: tSshServer: session index = 0 remote IP x.x.x.x.
    [93]: JAN 23 05:19:43: debug  : 1/1/1038: sshs: connInstance = 4219
    [94]: JAN 23 05:19:46: debug  : 1/1/1078: sshs: AuthPassword Callback: conn: 4219: user = admin
    [95]: JAN 23 05:19:46: alert  : 1/1/1078: clitask0: User admin@x.x.x.x logged in on slot 1
    [96]: JAN 23 05:19:46: debug  : 1/1/1078: sshs: RxCallback: session: 0 event: OPEN
    [97]: JAN 23 05:19:46: debug  : 1/1/1078: sshs: SshInTask: after while() loop, status = -6911, cleanUp = 0
    [98]: JAN 23 05:19:46: debug  : 1/1/1078: sshs: _SshExit(0, 0) called
    [99]: JAN 23 05:21:55: alert  : 1/1/1028: clitask1: User admin@x.x.x.x logged out from slot 1
    [100]: JAN 23 05:23:29: alert  : 1/1/1028: clitask1: User admin@x.x.x.x logged in on slot 1

İşte Net :: SSH'den gelen kayıt

[2016-05-02T13:41:48.064959 #89562] DEBUG -- net.ssh.transport.session[11a9720]: establishing connection to 10.100.0.31:22
D, [2016-05-02T13:41:48.066315 #89562] DEBUG -- net.ssh.transport.session[11a9720]: connection established
I, [2016-05-02T13:41:48.066422 #89562]  INFO -- net.ssh.transport.server_version[11a8eec]: negotiating protocol version
D, [2016-05-02T13:41:48.066440 #89562] DEBUG -- net.ssh.transport.server_version[11a8eec]: local is `SSH-2.0-Ruby/Net::SSH_4.0.0.alpha3 x86_64-linux'
D, [2016-05-02T13:41:48.069158 #89562] DEBUG -- net.ssh.transport.server_version[11a8eec]: remote is `SSH-2.0-Mocana SSH'
D, [2016-05-02T13:41:48.070131 #89562] DEBUG -- socket[11a934c]: read 424 bytes
D, [2016-05-02T13:41:48.070230 #89562] DEBUG -- socket[11a934c]: received packet nr 0 type 20 len 420
I, [2016-05-02T13:41:48.070288 #89562]  INFO -- net.ssh.transport.algorithms[11a85f0]: got KEXINIT from server
I, [2016-05-02T13:41:48.070350 #89562]  INFO -- net.ssh.transport.algorithms[11a85f0]: sending KEXINIT
D, [2016-05-02T13:41:48.070450 #89562] DEBUG -- socket[11a934c]: queueing packet nr 0 type 20 len 1156
D, [2016-05-02T13:41:48.070574 #89562] DEBUG -- socket[11a934c]: sent 1160 bytes
I, [2016-05-02T13:41:48.070615 #89562]  INFO -- net.ssh.transport.algorithms[11a85f0]: negotiating algorithms
D, [2016-05-02T13:41:48.070694 #89562] DEBUG -- net.ssh.transport.algorithms[11a85f0]: negotiated:
* kex: diffie-hellman-group1-sha1
* host_key: ssh-dss
* encryption_server: aes128-cbc
* encryption_client: aes128-cbc
* hmac_client: hmac-sha1
* hmac_server: hmac-sha1
* compression_client: none
* compression_server: none
* language_client: 
* language_server: 
D, [2016-05-02T13:41:48.070740 #89562] DEBUG -- net.ssh.transport.algorithms[11a85f0]: exchanging keys
D, [2016-05-02T13:41:48.071565 #89562] DEBUG -- socket[11a934c]: queueing packet nr 1 type 30 len 140
D, [2016-05-02T13:41:48.071659 #89562] DEBUG -- socket[11a934c]: sent 144 bytes
D, [2016-05-02T13:41:48.276487 #89562] DEBUG -- socket[11a934c]: read 448 bytes
D, [2016-05-02T13:41:48.276613 #89562] DEBUG -- socket[11a934c]: received packet nr 1 type 31 len 444
D, [2016-05-02T13:41:48.277173 #89562] DEBUG -- socket[11a934c]: queueing packet nr 2 type 21 len 20
D, [2016-05-02T13:41:48.277280 #89562] DEBUG -- socket[11a934c]: sent 24 bytes
D, [2016-05-02T13:41:48.280778 #89562] DEBUG -- socket[11a934c]: read 16 bytes
D, [2016-05-02T13:41:48.280829 #89562] DEBUG -- socket[11a934c]: received packet nr 2 type 21 len 12
D, [2016-05-02T13:41:48.281017 #89562] DEBUG -- net.ssh.authentication.session[11d6f40]: beginning authentication of `admin'
D, [2016-05-02T13:41:48.281089 #89562] DEBUG -- socket[11a934c]: queueing packet nr 3 type 5 len 28
D, [2016-05-02T13:41:48.281231 #89562] DEBUG -- socket[11a934c]: sent 52 bytes
D, [2016-05-02T13:41:48.282232 #89562] DEBUG -- socket[11a934c]: read 52 bytes
D, [2016-05-02T13:41:48.282290 #89562] DEBUG -- socket[11a934c]: received packet nr 3 type 6 len 28
D, [2016-05-02T13:41:48.282386 #89562] DEBUG -- net.ssh.authentication.session[11d6f40]: trying none
D, [2016-05-02T13:41:48.282458 #89562] DEBUG -- socket[11a934c]: queueing packet nr 4 type 50 len 44
D, [2016-05-02T13:41:48.282537 #89562] DEBUG -- socket[11a934c]: sent 68 bytes
D, [2016-05-02T13:41:48.284239 #89562] DEBUG -- socket[11a934c]: read 52 bytes
D, [2016-05-02T13:41:48.284306 #89562] DEBUG -- socket[11a934c]: received packet nr 4 type 51 len 28
D, [2016-05-02T13:41:48.284352 #89562] DEBUG -- net.ssh.authentication.session[11d6f40]: allowed methods: password
D, [2016-05-02T13:41:48.284387 #89562] DEBUG -- net.ssh.authentication.methods.none[11dfcf8]: none failed
D, [2016-05-02T13:41:48.284420 #89562] DEBUG -- net.ssh.authentication.session[11d6f40]: trying password
D, [2016-05-02T13:41:48.284489 #89562] DEBUG -- socket[11a934c]: queueing packet nr 5 type 50 len 60
D, [2016-05-02T13:41:48.284569 #89562] DEBUG -- socket[11a934c]: sent 84 bytes
D, [2016-05-02T13:41:48.295419 #89562] DEBUG -- socket[11a934c]: read 36 bytes
D, [2016-05-02T13:41:48.295559 #89562] DEBUG -- socket[11a934c]: received packet nr 5 type 52 len 12
D, [2016-05-02T13:41:48.295638 #89562] DEBUG -- net.ssh.authentication.methods.password[11de8a8]: password succeeded
D, [2016-05-02T13:41:48.295769 #89562] DEBUG -- socket[11a934c]: queueing packet nr 6 type 90 len 44
D, [2016-05-02T13:41:48.295911 #89562] DEBUG -- socket[11a934c]: sent 68 bytes
D, [2016-05-02T13:41:48.297023 #89562] DEBUG -- socket[11a934c]: read 52 bytes
D, [2016-05-02T13:41:48.297124 #89562] DEBUG -- socket[11a934c]: received packet nr 6 type 91 len 28
I, [2016-05-02T13:41:48.297203 #89562]  INFO -- net.ssh.connection.session[11e3f88]: channel_open_confirmation: 0 85460946 1000 1000
I, [2016-05-02T13:41:48.297353 #89562]  INFO -- net.ssh.connection.channel[11e3df8]: sending channel request "env"
D, [2016-05-02T13:41:48.297444 #89562] DEBUG -- socket[11a934c]: queueing packet nr 7 type 98 len 44
I, [2016-05-02T13:41:48.297579 #89562]  INFO -- net.ssh.connection.channel[11e3df8]: sending channel request "exec"
D, [2016-05-02T13:41:48.297637 #89562] DEBUG -- socket[11a934c]: queueing packet nr 8 type 98 len 28
D, [2016-05-02T13:41:48.297871 #89562] DEBUG -- socket[11a934c]: sent 120 bytes
D, [2016-05-02T13:41:49.297172 #89562] DEBUG -- socket[11a934c]: read 140 bytes
D, [2016-05-02T13:41:49.297469 #89562] DEBUG -- socket[11a934c]: read 0 bytes
I, [2016-05-02T13:41:49.297762 #89562]  INFO -- net.ssh.connection.session[11e3f88]: closing remaining channels (1 open)
D, [2016-05-02T13:41:49.297895 #89562] DEBUG -- socket[11a934c]: read 0 bytes
Net::SSH::Disconnect: connection closed by remote host
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