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Comments and suggestions concerning this book should be mailed to gmourani@videotron.ca © Copyright 1999-2000 Gerhard Mourani and Open Network Architecture ® 466 1.2 Display the number of time you Web pages has been acceded: To display quickly the number of times your web  page has been accessed use this command: [root@deep /]# grep "GET / HTTP" /var/log/httpd/access_log | wc -l       467 1.3 Shut down most services altogether As root, you can shut down most services altogether with the following command: [root@deep /]# killall httpd smbd nmbd slapd named   The above command will shut down the Apache server, Samba services, LDAP server, and DNS server respectively. 1.4 Want a clock on the top of your terminal for all user? Edit the profile file (vi /etc/profile) and add the following line: PROMPT_COMMAND='echo -ne "\0337\033[2;999r\033[1;1H\033[00;44m\033[K"`date`"\033[00m\0338"' The result will look like: 1.5 Do you have "lsof" installed in your server? If not, install it and execute "lsof  -i". This should list which ports you have open on your machine. The lsof program is a great tool, it will tell you which processes are listening on a given port. [root@deep /]# lsof -i COMMAND    PID     USER   FD   TYPE DEVICE SIZE NODE NAME Inetd 344     root        4u      IPv4    327         TCP   *:ssh (LISTEN) sendmail     389     root        4u      IPv4    387         TCP   *:smtp (LISTEN) smbd         450     root        5u      IPv4    452         TCP   deep.openarch.com:netbios -ssn (LISTEN) nmbd         461     root        5u      IPv4    463         UDP   *:netbios -ns  nmbd         461     root        6u      IPv4    465         UDP   *:netbios -dgm