In this article we will install the Ganglia monitoring system on a set of machines running CentOS. There are two kinds of machines involved: The meta node: one machine that receives all measurements and presents it to a client through
Network configuration on OpenSolaris
Static IP address Assigning a static IP address on OpenSolaris is accomplished by editing the hostname files in the directory /etc. For example, assign a static IP address to interface bge0 by editing /etc/hostname.bge0: 192.168.0.123 Set the netmask by editing
Network configuration on CentOS
Static IP address Assigning a static IP address on CentOS is accomplished by editing the files in the directory /etc/sysconfig/network-scripts. For example, assign a static IP address to interface eth0 by editing /etc/sysconfig/network-scripts/ifcfg-eth0: DEVICE=eth0 BOOTPROTO=none IPADDR=192.168.0.123 NETMASK=255.255.255.0 GATEWAY=192.168.0.1 ONBOOT=yes Network
Enabling NTP daemon on CentOS
Here are the steps to take to enable the Network Time Protocol (NTP) daemon on CentOS. Change the timeserver value to one that is close to you. yum install ntp ntpdate nl.pool.ntp.org service ntpd start chkconfig ntpd on If you
Samba file sharing
Samba is a file and print server for Windows-based clients using TCP/IP as the underlying transport protocol. In fact, it can support any SMB/CIFS-enabled client. One of Samba’s big strengths is that you can use it to blend your mix
Network Time Protocol (NTP)
The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. It provides accuracies typically within a millisecond
Dynamic Host Configuration Protocol (DHCP)
The Dynamic Host Configuration Protocol (DHCP) is an Internet protocol for automating the configuration of computers that use TCP/IP. DHCP can be used to automatically assign IP addresses, to deliver TCP/IP stack configuration parameters such as the subnet mask and
BIND DNS server
BIND (Berkeley Internet Name Domain) is an implementation of the Domain Name System (DNS) protocols and provides an openly redistributable reference implementation of the major components of DNS, including a DNS server (named), a DNS resolver library and tools for
Apache virtual hosts
Assume we want to serve webpages for two domains, example.com and example.org and these pages should be available with and without the ‘www’, so from www.example.com, example.com, www.example.org and example.org. In addition, clients connecting directly to our IP address, instead
Multiple webservers behind one IP address
This article was featured on Daemon News 2002-02. Overview This article discusses a network setup where multiple webservers reside behind one IP address. Such a situation may arise when you need a specific webserver for one task and a different