Tagged: Linux

Linux Distribution 0

New Release, Knoppix 8.6

One of my firsts Linux experiences was Knoppix, I forget that what was exact version but I guess, it was Knoppix 3.1 or older version. After 17 years, I am still one of fans....

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What’s redhat-upgrade-tool?

The redhat-upgrade-tool provides a way to upgrade Red Hat Enterprise Linux 6 systems to Red Hat Enterprise Linux 7. The redhat-upgrade-tool command is a program to collect the information for upgrade and prepare the environment. It includes downloading kernel, and initial ram image, and packages.

Qemu 0

QEMU version 4.0.0 Released

QEMU (short for Quick Emulator) is a free and open-source emulator that performs hardware virtualization. QEMU is a hosted virtual machine monitor: it emulates the machine’s processor through dynamic binary translation and provides a set of different hardware and device models for the machine, enabling it to run a variety of guest operating systems.

PowerCLI 0

Invoke-VMScript Challenges with Linux Guest

There is some challenges for passing Linux commands with parameters to guest OS. In most of cases, administrators have to pass commands as a PowerShell variable also I had some bad experiences, as an example: run “Sed” with some special parameters. I have to use lot of double quotes and single quotes to pass command via Invoke-VMScript to guest OS.

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Is There Any Tools Like VMware Tools for KVM?

All VMware guys know that guest OS needs drivers for
paravirtualized devices and the drivers provided by VMware as a package which called VMware Tools. VMware Tools is available for supported operating systems and also there is an open-source which called Open-VM-Tools and it’s available for modern Linux distributions and installed by operating system installer.

Java Mission Control 0

What’s Java Mission Control?

Java programming language is most popular programming languages (Tiobe Index)but Java applications are monster and eating computing resources easily if codes are not optimized and application not profiled. Monitoring Java applications has overhead on a system and in most of scenarios, test environments are different than production environments.

Red Hat Satellite 0

Foreman or Spacewalk, Your Red Hat Satellite With No Cost!

Red Hat Satellite is a system management software for Red Hat Enterprise Linux that provided by Red Hat. Red Hat Satellite is an open source software but you have to pay for subscriptions, if you want access to that. Red Hat Satellite or any other system management software is necessary for medium and large companies to provision, manage and keep update physical and virtual servers.

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Linux Distributions for Small and Medium-Sized Enterprise

What do you need for Small and Medium-Sized Enterprise businesses in IT department? Directory service, Mail service, Firewall. Anti-Spam, and many other services. You have to pay for each service if you want to have proprietary software such as Microsoft’s products. When we are talking about cost, open-source software will help you to reduce costs. Please consider that open-source software has cost for you but it will lower than closed-source software.

iptables vs nftables 0

NFTables, The Next Generation of Packet Classification Framework

Over the years, XTables (IPTables, IP6Tables, ARPTables and EBTables) were using as user-space utility programs for packet filtering in Linux distributions such as Red Hat Enterprise Linux or Ubuntu. Now, Linux vendors are replacing XTables with next generation packet classification framework which called NFTables.

nftables replaces the popular {ip,ip6,arp,eb}tables. This software provides a new in-kernel packet classification framework that is based on a network-specific Virtual Machine (VM) and a new nft user-space command line tool. nftables reuses the existing Netfilter subsystems such as the existing hook infrastructure, the connection tracking system, NAT, user-space queuing and logging subsystem.

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NTP Software Implementations Comparison

This post is about NTP Software implementations actually, but I have to write some words about NTP. NTP is an angle for financial applications, actually some of services such as banking services are very depended to clock synchronizations protocols. NTP is an ancient thing, it is more than 30 years old and even older than Windows 7 and Windows XP.

HPE 0

HPE Management Component Pack (MCP)

HPE Management Component Pack or HPE MCP provides agent software for use on community-supported distributions. The MCP (unlike the SPP) does not provide drivers and firmware (firmware is provided via HPSUM, and drivers are provided by the distribution vendors). The Linux Service Pack for ProLiant provides updated drivers and agent software for use on RedHat Linux and SUSE Linux Enterprise Server.

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