The enterprise monitoring system can be divided in to two parts.1.System monitoring 2.Application monitoring. System monitoring may cover anything external to the application like Operating systems,Memory,CPU,Switches,Routers and Networking and other infrastructure components. Application monitoring may covers availability of application and its performance. Monitoring system is only way to find the system failures and application failures […]
Solaris 11 Interview Questions
Always Solaris administrators work will be harder than any other Unix and Linux flavors administrators.Because Solaris administrator have to learn,third party products like veritas volume manager,veritas cluster and rapidly changing Solaris technologies.For an example Solaris 10 is somewhat different from earlier versions of Solaris since sun have introduced new technologies like ZFS,Zones and different networking commands in Solaris 10. Now oracle re-architectured the kernel for Solaris 11.So […]
How to Migrate/Upgrade from Solaris10 to Solaris11 ?
As you all know Oracle Solaris 11 is available for production and most of the customers are preferred to have Solaris 11 on their datacenters. Even I would like to play with Solaris 11 by upgrading existing Solaris 10 systems.Now the question may raise that,Is it possible upgrade my older version of Solaris to Solaris 11 ? The […]
Solaris 11 – How to Create VNIC and Assign a IP ?
How to assign Static IP address in Solaris 11? Is it possible to assign multiple IP address to NIC ? First we will the basic difference between older version of Solaris and Solaris 11.In Solaris 10, according to the NIC manufacturer,physical network interfaces are named (Ex:bge,e1000g,nxge).But in Solaris 11 onwards,the inconsistencies names are hidden from the view and all the interfaces will be […]
SOLARIS 11 – Link aggregation vs IPMP ? How to Configure it?
How many of the Solaris administrator knows the difference between link aggregation and IPMP (IP Multi-pathing) ? Even i don’t know the difference till last month.But I was in situation to choose between IPMP and Link aggregation for one of the server.Then I have read the Solaris 11 manuals and finally find out the difference between both. Both IPMP and Link aggregation increase […]
How to Take Remote GUI Session of Linux Server ?
Tiger VNC is a high-performance client/server application that allows end users to take remote GUI session (Remote Desktop) of Linux Servers.So that graphical application can be launched remotely using VNC session.It also provides extensions for advanced authentication methods and TLS encryption.Normally tiger VNC is coming along with Redhat Linux distribution DVD and also its available […]
How to Configure Software RAID on Linux ?
Software RAID is one of the greatest feature in Linux to protect the data from disk failure.We have LVM also in Linux to configure mirrored volumes but Software RAID recovery is much easier in disk failures compare to Linux LVM. I have seen some of the environments are configured with Software RAID and LVM (Volume groups are built using RAID devices).Using […]
Best Backup Softwares For VMWARE
Securing data is one of the biggest task in infrastructure management.If any thing goes wrong on the system,you need a good and latest backup to restore in timely manner.There are several factors you need to consider before choosing the right backup software for you ESX environment. VMWARE backup is somewhat different from traditional backup methods.Here we have option to […]
UnixAdmin:Best SSH/TELNET Tools
Unix Admins would like to have one of the best ssh/telnet tools on their desktop.If we say best tools, what are the features it should have by default? Now a days there are many tools available in market which are coming with great features.These ssh tools should have session log saving feature and also it […]
How to configure Solaris 10 IPMP ?
This article describes how to configure link based IPMP interfaces in Solaris 10. IPMP eliminates single network card failure and it ensures system will be always accessible via network.You can also configure the failure detection seconds in “/etc/default/mpathd” file and the default value is 10 seconds.In this file there is an option called “FAILBACK” to […]