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SSH Keygen

Access remote system by using SSH Open a terminal and install ssh # apt-get install openssh -y or # yum install ssh* -y Now, we connect the another system before we know the ip address, username and password. e.g. Username - splunk IP - 192.168.1.4 Password - *********** Now we connect the system #ssh splunk@192.168.1.4 ssh [...]

By |2021-03-11T15:39:57+05:30September 13th, 2016|Linux, RHCE-Offer, Tools, Ubuntu|Comments Off on SSH Keygen

Linux Boot Loaders

Boot Loader Bootloader or Boot Manager is a piece of code that runs before any operating system is running. When a computer is powered-up or restarted, the basic input/output system (BIOS) performs some initial tests, and then transfers control to the master boot record (MBR) where the boot loader resides. Used to boot other operating [...]

By |2021-03-11T15:39:59+05:30August 28th, 2016|Linux, Red Hat, Ubuntu, Windows|Comments Off on Linux Boot Loaders

Packet Analyzer: TCPDUMP Command Examples

TCPDUMP command is also called as packet analyzer. The command in general: Capital S means 'Specific' i.e. just traffic to and from the host you specify Lowercase s means the maximum size of the packet. '0' means anything. pipe "|" tee means send it to the file and the console. TCPdump on a CPAM server [...]

By |2021-03-11T15:40:00+05:30August 12th, 2016|Commands, Linux|Comments Off on Packet Analyzer: TCPDUMP Command Examples

Linux Boot Process (System Initialization)

Linux boot process  help us to troubleshoot if Linux server struck up in booting. This Linux Boot process made very faster compared to old versions. New version of Linux includes systemd which is replacement for init. Symbolic link from /sbin/init –> /usr/lib/systemd/systemd. Systemd has a full control to restart crashed services and its components.   Step 1:  Power [...]

By |2021-03-11T15:40:01+05:30August 7th, 2016|Linux|Comments Off on Linux Boot Process (System Initialization)

Basic Linux Commands That Every Developer Must Know

In an administration career, the most frequent things which you encounter is commands. Linux commands are the foundation of administration career. Commands can be of different types based on their function like- An executable program this is the files which we see in /usr/bin in this category, programs can be compiled binaries such as programs [...]

By |2021-03-11T15:40:03+05:30August 3rd, 2016|Commands, Linux|Comments Off on Basic Linux Commands That Every Developer Must Know

5 Ways DevOps Will Change VoIP and UC

DevOps is breaking down silos between development and operations teams and fundamentally changing how enterprises develop and deploy software and services, but medium- to large-scale voice over IP (VoIP) and unified communications (UC) platforms are also going to experience many of the same changes. Consider the following examples. 1. Improve Control and Escalation Paths The [...]

By |2021-03-11T15:40:04+05:30July 31st, 2016|DevOps|Comments Off on 5 Ways DevOps Will Change VoIP and UC

15 most useful Google apps you never knew existed

Google can be your best friend when it comes to searching for answers or information online. Millions of people use it every day, but only few can utilize Google to its full potential. In fact, this powerful search engine can offer lots of great services, apps and features that aren’t on many people’s radar. The [...]

By |2021-03-11T15:40:05+05:30July 20th, 2016|General, Learning|Comments Off on 15 most useful Google apps you never knew existed

Linux Software on Windows

Many Windows users want to try Linux at some time. They may be different reasons for that, may be they are irritated by Windows updates, may be they love open source. If you are looking for a better development environment and powerful command-line tools, you can run Linux software on Windows. Different options are available [...]

By |2021-03-11T15:40:06+05:30July 12th, 2016|Linux, Windows|Comments Off on Linux Software on Windows

Limit CPU usage of Linux process

cpulimit is a small program written in C that allows to limit CPU usage by Linux process. Limit is specified in percentage so it’s possible to prevent high CPU load generated by scripts, programs or processes. I found cpulimit pretty useful for the scripts running from cron, for example I can do overnight backups and [...]

By |2021-03-11T15:40:07+05:30July 11th, 2016|Commands, Learning, Linux|Comments Off on Limit CPU usage of Linux process

10 Shell Commands all Bloggers Should Know

1. Deleting Nested Folders With the rm command you can remove (unlink) files and folders from your hard drive. But what about a whole lot of nested folders too? Especially if each folder set contains subsequent files and mismatched data. The option -r will recursively flip through all subsequent files and folders to remove the [...]

By |2021-03-11T15:40:08+05:30July 7th, 2016|Commands, Linux|Comments Off on 10 Shell Commands all Bloggers Should Know