Category: How To

dhcpd server is designed for automatic and dynamic assignment of: IP-addresses wins dns default gateway time server subnet mask Dhcp does not require a server on each subnet,

Installing openssh server (SSH). and type sudo apt-get install openssh-server if need any configuration changes open SSH configuration file and edit: sudo vim /etc/ssh/sshd_config

/etc/group is a text file which defines the groups to which users belong under Linux and UNIX operating system. Under Unix / Linux multiple users can be categorized

Create a script vim /etc/stop_firewall.sh Copy this inside #!/bin/sh echo "Reseting iptables rules..." sleep 1 iptables -F iptables -X iptables -t nat -F iptables -t nat -X iptables

Enabling /var/log/messages in Ubuntu Edit file /etc/rsyslog.d/50-default.conf and uncomment following lines. *.=info;*.=notice;*.=warn;\ auth,authpriv.none;\ cron,daemon.none;\ mail,news.none -/var/log/messages daemon.*;mail.*;\ news.err;\ *.=debug;*.=info;\ *.=notice;*.=warn |/dev/xconsole After that restart rsyslog: sudo restart rsyslog

The private address space specified in RFC 1918 is defined by the following three address blocks: Range Number Network 10.0.0.0 – 10.255.255.255 16,777,216 10.0.0.0/8 (255.0.0.0) 24 bits 172.16.0.0

sudo apt-get update sudo apt-get dist-upgrade

su yum update reboot su yum install kernel-devel kernel-headers gcc make start tools install cd /tmp tar -xzf /media/VMware\ Tools/VMwareTools-8.4.5-324285.tar.gz cd vmware-tools-distrib ./vmware-install.pl

sh or Bourne Shell – the original shell still used on UNIX systems and in UNIX related environments. This is the basic shell, a small program with few

Ctrl+A – Move cursor to the beginning of the command line. Ctrl+C – End a running program and return the prompt, see Chapter 4. Ctrl+D – Log out