Server Unexpectedly Closed Network Connection

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  1. Server Unexpectedly Closed Network Connection Putty

Re: Server unexpectedly closed network connection'. It's only if the connection breaks or you rapidly disconnect and reconnect you will get a temp IP ban. Raising the timeout a bit will wait longer before aborting and reconnecting. Railing delay between attempt allows the server to 'cool off' longer.

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Server unexpectedly closed network connection firewall

Server Unexpectedly Closed Network Connection Putty

Here's the deal:OS: Debian (unstable)I usually SSH into my home system remotely with no issues.As of last night, when I attempt to log into the system with PuTTY, here's what happens: It prompts me for a user name and accepts it. It then prompts me for a password, and it then immediately aborts with the message:'Server unexpectedly closed network connection'.I checked /var/cache/apt/archives/ to see if my last upgrade included an ssh package. It did not./var/log/auth.log shows this message for each login attempt. Code: Sep 30 21:47:00 austin sshd13203: Accepted keyboard-interactive/pam for myusername from 13.16.61.31 port 29260 ssh2Sep 30 21:47:00 austin sshd13208: (pamunix) session opened for user myusername by (uid=0)Sep 30 21:47:00 austin sshd13208: fatal: PAM: pamsetcred: Critical error - immediate abortSep 30 21:47:00 austin sshd13208: (pamunix) session closed for user myusernameI checked my backup CD that I so wisely made a month ago and compared the /etc/ssh/sshdconfig files and they are the same.Any ideas? Yeah.It was one of the libpam packages. Kinda wanted to keep them all at uniform revs, so I downgraded all of them.libpam-cracklib 0.79-1i386.deblibpam-cracklib 0.79-2i386.deblibpam-modules 0.79-1i386.deblibpam-modules 0.79-2i386.deblibpam-runtime 0.79-1all.deblibpam-runtime 0.79-2all.deblibpam0g-dev 0.79-1i386.deblibpam0g-dev 0.79-2i386.deblibpam0g 0.79-1i386.deblibpam0g 0.79-2i386.debI went down from the 0.79-2 versions back to the 0.79-1 versions and all is well.

To All HP-ux Expert,I am facing one serious problem with hp-ux server 11.23, PA-RISC system having sap application on it. Hi,Thanks for the reply.(1) I have checked the kernel parameter with # kmtune -q npty/nstrtel, it is giving default value 60. Also no of telnet session are less.(2) when server was hung, i have generated the TC but it is not giving me proper booting response also dump not generated in /var/adm/crash.(3)I have also tried the RS to reset the RST signal but during boot process it is not giving me primary boot path and giving the INIT= -7 error ( boot failure error) but after hard reboot, server detect the primary boot path. Root is not mirrored one and we don't have alternate boot path. Hi,Need your valuable inputs in critical condition;-we are not able to detect the primary boot path, it seems to be disk fail.

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