Hi, all: I encountered the error message "setsockopt IPTOS_LOWDELAY: Invalid argument" when trying to ssh to the local host: $ /usr/sbin/sshd -d & debug: Initializing random number generator; seed file /etc/ssh_random_seed log: Server listening on port 22. log: Generating 768 bit RSA key. Generating p: ........++ (distance 106) Generating q: ...++ (distance 68) Computing the keys... Testing the keys... Key generation complete. log: RSA key generation complete. $command ssh localhost debug: Server will not fork when running in debugging mode. error: setsockopt IPTOS_LOWDELAY: Invalid argument log: Connection from 127.0.0.1 port 2502 setsockopt IPTOS_LOWDELAY: Invalid argument log: Address 127.0.0.1 maps to spider2.icx.net, but this does not map back to th e address - POSSIBLE BREAKIN ATTEMPT! debug: Client protocol version 1.5; client software version 1.2.27 debug: Sent 768 bit public key and 1024 bit host key. debug: Encryption type: idea debug: Received session key; encryption turned on. debug: Installing crc compensation attack detector. debug: Attempting authentication for administrator. [EMAIL PROTECTED]'s password: debug: Password authentication for administrator failed. Permission denied.fatal: Connection closed by remote host. debug: Calling cleanup 0x411ee0(0x0) Any help would be appreciated. Wei -- Want to unsubscribe from this list? Check out: http://cygwin.com/ml/#unsubscribe-simple