SSH 連線無線電靜默

Question

我已經解決這個問題很長一段時間了，但我無法找出這個問題的原因。我們有一個作業在 AIX 伺服器上運行，它使用 Perl::SFTP 連接到 Linux RHEL 7 伺服器。該作業大約運行 3/10 次。就連接而言，這就是我在 /var/log/secure 中看到的內容。出於工作安全原因，不得不刪除一些東西。

這就是它工作時的樣子

Jul 22 03:17:28 hostname sshd[28505]: Set /proc/self/oom_score_adj to 0
Jul 22 03:17:28 hostname sshd[28505]: Connection from 10.8.**.*** port 45372
Jul 22 03:18:49 hostname sshd[28505]: Failed publickey for user1 from 10.8.**.*** port 45372 ssh2
Jul 22 03:18:49 hostname sshd[28505]: pam_succeed_if(sshd:auth): requirement "user in root:db2dba" not met by user "user1"
Jul 22 03:18:49 hostname sshd[28505]: Accepted password for user1 from 10.8.**.*** port 45372 ssh2
Jul 22 03:18:49 hostname sshd[28505]: pam_unix(sshd:session): session opened for user user1 by (uid=0)

這就是失敗時的樣子。日誌裡就只有這個了

Jul 22 14:37:04 hostname sshd[3697]: Set /proc/self/oom_score_adj to 0
Jul 22 14:37:04 hostname sshd[3697]: Connection from 10.8.**.*** port 46718

這是作業失敗時的輸出

Computing shared secret key.
Verifying server signature.
Waiting for NEWKEYS message.
Send NEWKEYS.
Enabling encryption/MAC/compression.
Sending request for user-authentication service.
Failed transmitting /model/claims/jobs/data/EA_COVERAGESFEED.DAT

這是成功的工作

Computing shared secret key.
Verifying server signature.
Waiting for NEWKEYS message.
Send NEWKEYS.
Enabling encryption/MAC/compression.
Sending request for user-authentication service.
Service accepted: ssh-userauth.
Trying empty user-authentication request.
Authentication methods that can continue: publickey,gssapi-keyex,gssapi-with-mic,password.
Next method to try is publickey.
Trying pubkey authentication with key file '/model/.ssh/id_dsa'
Authentication methods that can continue: publickey,gssapi-keyex,gssapi-with-mic,password.
Next method to try is publickey.
Next method to try is password.

任何想法或幫助將不勝感激。抱歉，我無法提供有關該工作的更多信息，因為我無權訪問它。