Author Archives: Ajitabh
Using SNAT for Highly Available Services
Problem Often network based services are restricted to a particular source IP address. A common example is SNMP. A good system/network administrator will restrict access to the SNMP daemon from a particular host, usually a central management server. Sometimes these … Continue reading
Migrating Users in Linux
When a server is to be replaced, often it is a requirement to migrate all user accounts as it is to the new server, which means that the password on these accounts also should not change. Before the account migration … Continue reading
Setting up SNMP
SNMP is Simple Network Management Protocol. It allows the operational statistics of a computer to be stored in object identifiers (OIDs) which can then be remotely queried and changed. For any serious remote monitoring, SNMP is required. I generally prefer … Continue reading
Relocating to India
Finally I am relocating to India. I was thinking about it from quite sometime but obviously it was a difficult decision. I finally decided when I got a very good offer from ITC Infotech India Ltd. My resignation on 22nd … Continue reading
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Setting Up Tomcat and Apache
This howto describes the tomcat+apache setup using mod_jk. The setup described here is where an instance of Apache load balances multiple tomcat instances. The web applications served by both the Tomcat instances must be identical for this to work. This … Continue reading