How to Set the JVM Time Zone

In this tutorial, we’ll take a look at several ways we can modify the time zone of the JVM. Introduction to Time Zone By default, the JVM reads time zone information from the operating system. This information gets passed to the TimeZone class, which stores the time zone and calculates the daylight saving time. We can call the … Read more

What is open source software?

Overview Open source software is released through a specific kind of license that makes its source code legally available to end-users. There are many such licenses, but typically software is considered open source if: Is open source software free? Open source software does not necessarily mean that executable software is given away for free. It does, however, mean that … Read more

Data Domain – System Tuning Guide for Solaris 10 / Solaris 11

How to fine tune your Solaris backup servers: Recommended mount option For Solaris 10 #mount -F nfs -o hard,intr,llock,vers=3,proto=tcp,sec=sys, timeo=1200,rsize=1048576,wsize=1048576 HOSTNAME:/backup /ddr/backup # mount -F nfs -o hard,intr,llock,vers=3,proto=tcp,sec=sys, timeo=1200,rsize=1048576,wsize=1048576 HOSTNAME:/data/col1/<mtree> /ddr/<mountpoint> For Solaris 11 #mount -F nfs -o hard,intr,llock,vers=3,sec=sys,timeo=1200,rsize=1048576,wsize=1048576 HOSTNAME:/backup /ddr/backup # mount -F nfs -o hard,intr,llock,vers=3,sec=sys,timeo=1200,rsize=1048576,wsize=1048576 HOSTNAME:/data/col1/<mtree> /ddr/<mountpoint> Recommended Network Settings: Data Domain recommends … Read more

Setup and Configure Network Aggregation Under Solaris 10 / Solaris 11

An aggregation is similar to an IPMP link created for failover, but has other advantages: Early versions of Solaris 10 do not have this facility – you would need to download the Sun Trunking software to get it. ### Solaris 10 configuration: To show the available network interfaces: [root @ soltest]~ # dladm show-link LINK … Read more

Few Random Solaris Commands : intrstat, croinfo, dlstat, fmstat, ibv_devinfo & hotplug

Target OS: Solaris 11 and later. Some of these commands may work on earlier versions too. -1- Interrupt Statistics : intrstat utilityintrstat utility can be used to monitor interrupt activity generated by various hardware devices along with the CPU that serviced the interrupt and the CPU time spent in servicing those interrupts on a system. … Read more

How to change the timezone of containers running in k8s

rm -rf /etc/localtime ln -s /usr/share/zoneinfo/Asia/Tehran /etc/localtime dpkg-reconfigure -f noninteractive tzdata 2. Change the timezone via k8s mount hostPath: spec: containers: – name: nginx image: nginx ports: – containerPort: 80 name: nginx volumeMounts: – name: tz-config mountPath: /etc/localtime volumes: – name: tz-config hostPath: path: /usr/share/zoneinfo/Asia/Tehran

What is open source?

The term open source refers to something people can modify and share because its design is publicly accessible. The term originated in the context of software development to designate a specific approach to creating computer programs. Today, however, “open source” designates a broader set of values—what we call “the open source way.” Open source projects, products, or … Read more