hey friends, I have again have to post my problem on the list as so far i haven't been able to solve the problem.I even mailed to the OpenSSh list but so far not response from their side. The SSH service on my FC3 server is having some problem. Let me explain why this happened: I was trying to authenticate with the public keys to my CVS server through Wincvs on Windows XP Sp2.I have installed cygwin and openssh for cygwin on windows.I configured my CVS server for SSH authentication with password but later on when I tried to make it run with key based access the problem with SSH started. Now everytime I try to start the SSH service service sshd start it gives the error: sshd:cipher_encrypt: bad plaintext length 337 [Failed}: Alexandar responded to my mail earlier and asked me run few commands and post the result of the commands over here 1) $ egrep -v '^$|^#' /etc/ssh/sshd_config the output of this egrep is below ListenAddress 0.0.0.0 SyslogFacility AUTHPRIV LogLevel INFO PasswordAuthentication yes ChallengeResponseAuthentication no GSSAPIAuthentication yes GSSAPICleanupCredentials yes UsePAM yes X11Forwarding yes Subsystem sftp /usr/libexec/openssh/sftp-server 2) I ran dos2unix command on sshd_config ,but nothing changed. 3) The output of strace -x /etc/init.d/sshd start I have only posted the output which was in "Red Color". write(1, "FAILED", 6FAILED) = 6 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 write(1, "\33[0;39m", 7) = 7 4) the output of bash -x /etc/init.d/sshd start I have only posted the output which was in "Red Color". + echo -n FAILED FAILED+ '[' color = color ']' + echo -en '\033[0;39m' I search on google for this error there was something on it that sometimes there are some $ in the sshd_config .I removed all the extra $ signs but still the problem is persisting. Can anybody tell me the solution for this.Failing to get any solution will force me to start the telnet service as sometimes i need to login into my server from home .Starting telnet service is like opening a door for thiefs. Thanks & Regards Ankush Grover