All system logs are found in /var/log. I think you will find that it is set up quite nicely to find what it is you are looking for. Since sftp and sshd run as the same service, they as well as other things log into /var/log/secure. You can grep that file til your hearts content. In addition, make sure your root: alias is setup properly, because if it is, once a day you get a report from logwatch which, among other things, gives you a nice report from /var/log/secure which will allow you to see who/what is logging in on a regular basis without having to actually attach to the machine. Check out /etc/log.d/logwatch.conf for more details. Wayner >>> mianaya@xxxxxxxxxxxxxx 06/07/06 11:37 am >>> We just migrate out UNIX system to Redhat LINUX system (AS 3.6). I tried to find who use "sftp" login to my server. on SUN or AIX server I can use: last|grep ftp This commanf does NOT show anything on LINUX. Can anyone tell me : 1. where is log file for sftp or how to setup sftp log file? 2. any command similiar to "last" which can check "sftp" login? Thanks. sudo last -f /var/log/secure ********************************************************************** This message contains confidential information intended only for the use of the addressee(s) named above and may contain information that is legally privileged. If you are not the addressee, or the person responsible for delivering it to the addressee, you are hereby notified that reading, disseminating, distributing or copying this message is strictly prohibited. If you have received this message by mistake, please immediately notify us by replying to the message and delete the original message immediately thereafter. Thank you. FADLD Tag ********************************************************************** -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list