SET-C

Task 1 – UserAdmin (webmaster – UID1100)

Task 2 – Webserver (virtual hosts)

Task 3 – Monitor WebServer (xinetd)

Task 4 – Monitor Server1 (script)

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a) server1

   useradd webmaster -u 1100 -g 100 -m

b) server2

   useradd -c "Thomas Barnes" tbarnes -u 1010 -g 100 -m

   useradd -c "James King" jking -u 1011 -g 100 -m

   passwd tbarnes (novell)

   passwd jking (novell)

c) su - tbarnes

   ssh-keygen -t dsa (default location, no passphrase)

   exit

   su - jking

   ssh-keygen -t dsa (default location, no passphrase)

   exit

d) cat /home/tbarnes/.ssh/id_dsa.pub > authorized_keys

   cat /home/jking/.ssh/id_dsa.pub >> authorized_keys

   server1

   md /home/webmaster/.ssh

   server2

   scp authorized_keys 192.168.146.10:/home/webmaster/.ssh/

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Apache2 in /etc/apache2/*.conf and file at /etc/sysconfig/apache2

a) server1/server2

   vi /etc/hosts

   192.168.146.10 virtual1.digitalairlines.com

   192.168.146.10 virtual2.digitalairlines.com

   server1

   cd /etc/apache2

   vi listen.conf

   NameVirtualHost *:80

b-c) cd vhosts.d

     cp vhost.template virtual1.conf

     vi virtual1.conf

       ServerAdmin webmaster@digitalairlines.com

       ServerName virtual1.digitalairlines.com

       DocumentRoot /srv/www/htdocs/virtual1/

       ErrorLog /var/log/apache2/virtual1/error_log

       CustomLog /var/log/apache2/virtual1/access_log combined

      

         Options FollowSymLinks

      

       *remove the rest

     cp virtual1.conf virtual2.conf

     vi virtual2.conf

     :%s/virtual1/virtual2/g

     apache2ctl configtest (chk for syntax err, httpd error can be ignored)

d) cd /var/log/apache2   md virtual1 virtual2

   cd /srv/www/htdocs     md virtual1 virtual2

   cp /srv/www/htdocs/index.html virtual1 cp /index.html virtual2 

e) rcapache2 start   insserv apache2

   w3m http://virtual1.digitalairlines.com

   w3m http://virtual2.digitalairlines.com

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a-b) vi /etc/xinetd.d/systat

     server_args = uU wwwrun

     log_type = syslog daemon

     only_from = server2

c) rcxinetd start

   insserv xinetd

d) vi /etc/syslog-ng/syslog-ng.conf

   filter f_xinetd { match("xinetd"); };

   destination xinetd { file("/var/log/xinetd.log"); };

   log { source(src); filter(f_xinetd); destination(xinetd); };

   f_messages { not facility(news, mail) and not filter(f_iptables) and not filter(f_xinetd); };

   cd /var/log

   rm xinetd.log

   rcsyslog restart (no ng here)

   rcxinetd start

   tail -5 messages

   tail -5 xinetd.log

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b) vi /etc/sysconfig/monitoring

   IOSTAT_DELAY=2

   MPSTAT_DELAY=2

   VMSTAT_DELAY=2

a-d) cd ~/bin

     vi monitoring

     #!/bin/bash

     source /etc/sysconfig/monitoring

     cd /var/log

     if [ $1 = 'start' ]

      then

       if [ -f iostat.log ]

        then

         rm iostat.log

       fi

       if [ -f mpstat.log ]

        then

         rm mpstat.log

       fi

       if [ -f vmstat.log ]

        then

         rm vmstat.log

     fi

       nohup iostat $IOSTAT_DELAY > iostat.log &

       nohup mpstat $MPSTAT_DELAY > mpstat.log &

       nohup vmstat $VMSTAT_DELAY > vmstat.log &

     if [ $1 = 'stop' ]

      then

       kill `ps -a | grep iostat | awk '{print $1}'`

       kill `ps -a | grep mpstat | awk '{print $1}'`

       kill `ps -a | grep vmstat | awk '{print $1}'`

     fi

     chmod 700 monitoring     ./monitoring start     ./monitoring stop