Yesterday, a host that had been running sshd for almost a year began denying ssh RSA authentication logins from every machine available, giving this error: Local: Corrupted check bytes on input The verbose output, "ssh -v", yielded nothing special other than this same error message. The host is a Pentium Pro running a BSD 3.x OS. The machine is an F5 Networks BIG/ip controller. There is BSD IP filtering running on this host. The type of ssh the host is running: F-SECURE SSH Version 1.3.5 [i386-unknown-bsdi3.1], protocol version 1.5 One of the clients denied access is an identical machine with identical software (the BIG/ip failover machine). All the other hosts are Sun Solaris servers running this type of ssh: SSH Version 1.2.26 [sparc-sun-solaris2.7], protocol version 1.5 While I was trying to ssh in (and failing), these error messages appeared on the host's /var/log/messages file. Oct 5 18:26:25 bigweb02 sshd[11550]: fatal: Local: Corrupted check bytes on inp ut. Oct 5 18:26:25 bigweb02 sshd[11550]: debug: Calling cleanup 0xfab4(0x0) I was able to access this via the console. Once in, I killed sshd and restarted it. Now everything works fine. Maybe something to do with BSD IP filtering? Brendan
