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how to check your linux servers for rootkits and malware


image: jack wallen if your data center makes use of linux, you want to ensure those servers are free from both rootkits and malware. although linux, in general, is safe from a vast amount of malicious software, it is a mistake to assume it completely impervious. not only could you wind up with a data-destroying rootkit, if one of your linux machines happens to work as a web server, that machine could have been compromised and is now serving up malicious code.how do you avoid such issues? you take precautions. one such precaution is using the right tools to scan your machines for both rootkits and malicious code. i want to walk you through the process of installing and using two tools that will scan for both. i'll be demonstrating on ubuntu server 16.04, so if you use a different platform,






how to easily set up third party dns on linux


are you a linux user? want to try an alternative dns service but are unsure how to do it? not to worry! in this tutorial we’ll go over how to change the dns settings in linux via a network manager. additionally, we’ll outline why it might be better to switch your entire router over rather than just doing it on individual computers manually.not sure what an “alternative dns” service is? check out this article that outlines in detail why these services exist and why users should strongly consider using them!adding alternative dns servers on linuxstart by clicking the “edit connections” option. since each linux distribution and desktop environment is different, you’ll need to find this setting yourself. a good rule of thumb is to find the “wifi icon” and right-click on it. if you use a wired






how to easily set up third party dns on linux


are you a linux user? want to try an alternative dns service but are unsure how to do it? not to worry! in this tutorial we’ll go over how to change the dns settings in linux via a network manager. additionally, we’ll outline why it might be better to switch your entire router over rather than just doing it on individual computers manually.not sure what an “alternative dns” service is? check out this article that outlines in detail why these services exist and why users should strongly consider using them!adding alternative dns servers on linuxstart by clicking the “edit connections” option. since each linux distribution and desktop environment is different, you’ll need to find this setting yourself. a good rule of thumb is to find the “wifi icon” and right-click on it. if you use a wired






how to ensure your linux servers are on the right time


image: jack wallen i've experienced, many a time, when a particular piece of server software wouldn't function properly for what seemed like inexplicable reasons. after digging through the log files, at least in some instances, the culprit turned out to be out of sync server time. this type of issue can rear its ugly head even if the server clock is off by a few short minutes. although you can change the time and date from the command line (using the date command), the problem is that time, once set, can still shift.more about networkingthe solution to this problem is to add the ntp service to your server and have it sync with ntp servers to keep yours right on time. i want to show you how to install ntp on a linux server and how to enable time synchronization. i will be demonstrating this






how to monitor your linux servers with nmon


image: jack wallen if you make use of linux in your data center, then you have good reason to be on the lookout for a simple-to-use monitoring tool that can give you a quick rundown of what's going on with your server. within the realm of linux, tools like this are plentiful. so where do you start in your quest to find that perfect tool? for me, day-to-day monitoring of linux servers begins with nigel's monitor, aka nmon.data center must-readsthe nmon tool will, using a simple ncurses interface, display the usage for cpu, memory, network, disks, file system, nfs, top processes, resources, and power micro-partition. what's best is that you get to choose what nmon displays. and since it's text-based, you can secure shell into your servers and get a quick glimpse from anywhere (as long as "an






how to install stacer for quick linux system optimization


image: jack wallen if you administer linux desktops or servers, you know there are a lot of tools available to help you make them run smoothly. some of those tools come in the form of commands and some by way of a gui. in certain cases, the software is a one trick pony (that does its one trick very well). what if, however, you could have a gui tool that would give you a quick overview of your system resources, offer a system cleaner, make it easy to enable/disable startup apps, enable/disable system services, and uninstall packages. if that is a tool you've been looking for, stacer is what you need.more about open sourcewith stacer you get the whole package: system overview dashboardsystem cleanerstartup app controlservices controluninstallerall in one, well-designed gui. this app might se






how to customise and pimp your bash prompt in linux


if you use linux, you’re going to spend a decent amount of time working in the terminal. why wouldn’t you want it to reflect your style and the theme of your desktop? through the work of the open-source community, there are loads of different options to trick out your command line experience in linux, and they’re all simple to use.terminal emulatorsone of the first and easiest things that you can do to change up your command line in linux is to switch your terminal emulator.when you open the “terminal” on your distribution, you’re really opening a terminal emulator. a terminal emulator just emulates the old dumb terminals that were physically connected to unix servers. they were just a screen and a keyboard that allowed you to interact with the server from a distance in the absence of netw






5 great steam alternatives for linux


steam has been on linux for a few years. since it landed many video games, including mainstream titles from big-name publishers, have found themselves on linux. this is all great for the average consumer, as one of the biggest deterrents to switching to linux is gaming support. however, some in the linux community don’t like steam. they see the commercial-gaming platform as a detriment to their software freedom, as it brings a lot of drm. as a result of this, many people who love video games on linux have had to go without. this list offers five good alternatives to steam? 1. itch.io for... read more






the complete linux power user bundle deal


if you’re a linux user, you may feel a little left out, as it seems there is always more available for windows or mac. but you don’t have to be left hanging because all you need is the linux power user bundle. no matter your current level right now with linux, by the time you finish this content, you’ll be an expert user as you learn about linux alternatives, linux command-line essentials, and more.the following five courses are included in the bundle.high availability for the lmap stack – with this step-by-step guide you will learn how to be sure your sites and apps run smoothly by eliminating points of failure and making sure it’s prepared for scaling and large traffic surges.twenty-two lectures and two hours of contenteliminate single points of failure for linux, apache, mysql, and php-






cr os linux download


download download cr os linux (pronounced like cros linux) is the free os built around the revolutionary chromium browser - a foundation for google chrome. we call it the chrome plated os, because it is stable and shiny. this open source project provides a lightweight linux distribution similar to google chrome os for the best web browsing experience on any x86 pc, netbook or notebook.






linux desktop operating system: a beginner's guide


image: jack wallen linux. what is it? at one point in time it was a niche operating system run by those who wanted to show off their pc prowess and feel more alternative and l33t than the rest. but something happened on the way to the convention — linux became accepted. not only did this platform become accepted, it was adopted as a must-have technology by enterprise-level businesses, where reliability, flexibility, and security are key.but for the masses, those that have really only ever known either windows or mac, the question still remains. what is linux?i want to answer that question for you. the answer will not be exhaustive (for that you'll need a book) and will target those that have had zero exposure to the operating system. i'm not going to pull it back so far as to answer the qu






choosing the best linux filesystem for your ssd


when setting up a new linux install with an ssd, many don’t know what file system to go with. this is understandable, as file systems are not talked about enough. when people install linux, often times they select the default options without thinking about it. that’s not the right way to go about these things. in this article we’ll go over the best file systems for your ssd on linux. we’ll rank them and go over the positives and negatives of each. 1. btrfs btrfs has many enemies. the detractors say it is unstable, and this can be true as it is in very... read more






how to install discord on ubuntu linux


discord is a wildly popular text and voice chat application. though it began life catering primarily to gamers, it has gained widespread favor across nearly all audiences.discord isn’t just a great chat client. when you install it you also get its powerful server capabilities, batteries included. gamers and non-gamers alike can spin up their own private chat servers in minutes, making discord an obvious choice for teams, guilds, and all sorts of communities.all too often, linux users are left out in the gaming world. that’s not the case with discord. its developers actively build and maintain their popular chat platform for linux too. ubuntu users have it even better. discord is bundled in a convenient debian/ubuntu .deb package.get and install the packagesthere are a couple of ways that y






how to customise and pimp your bash prompt in linux


if you use linux, you’re going to spend a decent amount of time working in the terminal. why wouldn’t you want it to reflect your style and the theme of your desktop? through the work of the open-source community, there are loads of different options to trick out your command line experience in linux, and they’re all simple to use. terminal emulators one of the first and easiest things that you can do to change up your command line in linux is to switch your terminal emulator. when you open the “terminal” on your distribution, you’re really opening a terminal emulator. a terminal emulator... read more






how to install deb package in arch linux


if you’ve used linux for any amount of time, you’ve noticed that one of the most common methods to install third party applications is via a .deb package. often times this is the only way to get this software, as the developers can’t be bothered to go through the process of packaging in the dozens of different formats the linux platform offers.many non-debian-based linux distributions have their own ways of getting around this issue. however, out of all linux distributions, arch linux has the most interesting ways of getting a debian package working. in this article we’ll outline 3 ways on how to accomplish this and discuss which one is best.note: the steps below will work for any arch-based distro as well.installing via the aurthe aur is the first place to check when looking for software






how to install deb package in arch linux


if you’ve used linux for any amount of time, you’ve noticed that one of the most common methods to install third party applications is via a .deb package. often times this is the only way to get this software, as the developers can’t be bothered to go through the process of packaging in the dozens of different formats the linux platform offers.many non-debian-based linux distributions have their own ways of getting around this issue. however, out of all linux distributions, arch linux has the most interesting ways of getting a debian package working. in this article we’ll outline 3 ways on how to accomplish this and discuss which one is best.note: the steps below will work for any arch-based distro as well.installing via the aurthe aur is the first place to check when looking for software






how to build a custom kernel on ubuntu


the thought of compiling your own kernels strikes fear in the hearts of new linux users. it sounds terrifying, building the most crucial part of your system from scratch. the truth is, though, building the linux kernel is really easy.building linux kernels does not require programming. some of the best programmers in the world have already written all of the code. you just have to pick the features that you want and put it all together.getting the dependenciesbefore you even touch a kernel, you need the right tools to build it. use apt to download them from ubuntu’s repositories.sudo apt installinstallgit build-essential kernel-package fakeroot libncurses5-dev libssl-dev ccachegetting the kernel sourcenow you can grab the source that you want to build. all of the kernels are available from






how to use wget to download files to your gui-less linux server


image: jack wallen if you maintain a linux server that doesn't include a gui, you may find yourself at a loss for downloading files. you could use ftp, but that would depend upon the files you need being stored on an ftp server, and ftp is not nearly as prevalent as it once was. what do you do? you use wget.more about open sourcethe wget tool has been around since 1996, and you'll be glad you have it when it's needed. it's a very straight-forward tool to use, and it comes with extra options that can come in handy. i'll walk you through the basic usage of wget and how to use some of those options, so you don't have to jump through hoops to get those files onto your gui-less servers.you don't have to worry about installing wget, because it is on most linux distributions (desktop and server)






how to switch between linux distros without losing your data


switching between linux distributions can be hard when you’re preserving user data. many users have ways to combat this: cloud storage solutions, external hard drives, flash drives, home servers, etc. however, none come close to just giving the home directory its own isolated space so that it is safe from being wiped away. in this guide we’ll go over how to break out a home directory from an existing installation and protect it from future installations. it’s a tedious but simple process that is rewarding. download the partition editor note: if your hard disk already has a secondary partition that you want to move the... read more






​how to install linux mint on your windows pc


i think linux mint isn't just a great desktop, it's a great replacement for windows. with windows security problems such as wannacry, people are starting to explore alternatives to windows. i got a number of requests about switching out from windows to the latest and best linux. for me and many other experienced linux users that's linux mint 18.1. you don't need to be a linux expert to install mint on a windows pc. here's how to do it. (image: zdnet) download mintfirst, you can -- and should -- try linux mint before switching to it. fortunately, unlike other operating systems, linux distros like mint make it easy to give them a test run before installing it. to do this, first you'll need to download a copy of linux mint, which comes with many different desktops, such as kde, mate, and xfce






vpn unlimited deal: lifetime subscription for just $39 or 3-year subscription fo


a virtual private network is a must-have for anyone who is serious about online privacy. by encrypting your traffic and routing it through private servers, a vpn keeps prying eyes off of your sensitive information and hides your ip address from tracking websites, advertisers, and nosy internet service providers. monthly subscription fees for these services can be a turn off, but if you’ve been considering a vpn service, you can currently get a lifetime subscription to vpn unlimited from the dt shop for a one-time payment of $39.vpn unlimited works on ios, android, and windows mobile devices, along with mac, windows, and linux operating systems, for compatibility across virtually all of your devices. this is particularly useful if you are on the go a lot and frequently use shared or public






microsoft ntp servers suffer hiccups


sometime on the morning of april 3, microsoft's network time protocol (ntp) servers went haywire. at first, microsoft's ntp server (time.windows.com) reported the time being an hour later than it should have been. then, the site went offline. finally, 24 hours later, the time server came back online with the right time.microsoft's time keeping when awry for over a day. photo: joe mckendrick what happened? we don't know, and microsoft isn't saying. microsoft has yet to return emails about the matter. here's what microsoft's ntp server looked liked at first using the linux ntpdate command: $ ntpdate -q time.windows.com server 13.79.154.18, stratum 16, offset 16.852572, delay 0.03661 the telltale sign that's something's badly wrong is "stratum 16". this tells an ntp administrator that the ntp






​open invention network expands open-source patent protection beyond linux


today, everyone and their uncle -- yes, even microsoft-- use linux and open-source. a decade ago, linux was under attack by sco for imaginary copyright violations, and then microsoft ceo steve ballmer was claiming that linux violated more than 200 of microsoft's patents. so open invention network (oin) patent consortium was formed to defend linux against intellectual property (ip) attacks. the stakes may not be so high today, but linux and open-source software is still under attack from patent trolls and other attackers. that's where the open invention network (oin) steps up by expanding its patent non-aggression coverage through an update to its definition of the linux system. read this patent wars end with a whimper as apple-samsung fizzles apple's latest courtroom drama fizzled, with th






5 of the best kodi alternatives you should check out


when it comes to managing media locally, regardless of the platform, the most popular choice is kodi. there’s good reason: it can easily manage many types of media, has support for live tv, and even has a pretty large selection of add-ons.still, for as much praise as kodi gets, the software isn’t for everyone. a lot of people find themselves stuck with this media center, even if they’re not entirely happy with it, due to the fact that not many viable alternatives are known.in this article we’ll go over the best alternatives to kodi for the three major platforms: mac os, windows and linux. how do they stack up? are they good enough to replace kodi? let’s find out!1. plexit is impossible to talk about alternatives to kodi without mentioning plex. this software makes it easy to have a central






razer now calling on linux enthusiasts to help shape support for linux on the ra


why it matters to you linux fans who love razer's products should be thrilled that the company wants to support the operating system on its razer blade gaming laptop.razer founder and ceo min-liang tan said on thursday that the company is now looking to support linux on the razer blade laptop. he said that support for the open-source operating system is one of the most common requests for the razer blade and that razer is now looking into the possibility. he is now asking all linux “enthusiasts” to provide their feedback, suggestions, and ideas in the new linux corner section of razer insider.“we decided to lead a new forum section that is dedicated to linux’s applications for gamers or other creators alike,” the company states in its introductory post. “the linux corner is a result of thi






it's the year of linux on the windows desktop


2017: the year of the linux desktop on the windows desktop. yes, microsoft is making it much easier to run the bash shell, based on ubuntu, and soon suse or fedora, on windows 10. no, hell hasn't frozen over.read this ​microsoft's love affair with linux deepens after testing the waters for years, microsoft has launched its first service, azure cloud switch, that's based on linux.true, carmen crincoli, microsoft's storage independent hardware vendor partner manager, tweeted: "2017 is finally the year of linux on the desktop. it's just that the desktop is windows." but, this isn't as new as you might think it is.you see, with canonical's help (ubuntu's parent company), microsoft brought the ubuntu linux bash shell to windows 10 last year. this runs, not in a container or virtual machine (vm)






why users are keeping linux from gaining market share


i've been using linux now for 20 years. i was one of those, back in the old days, willing to jump ship on windows, even though the alternative was, at times, an incredibly frustrating challenge. but then, i happen to also be one of those who loves a good challenge.i remember well, those early moments have having to write scripts just to keep a modem persistently connected. i remember my first steps with installing from source (and the ensuing "dependency hell").more about open sourceto some, those were the good ol' days; when linux was a platform that would challenge your skills on a day-to- day basis, thereby separating the l33t from the n00b. to be honest, that was a perfectly acceptable stance to take back then. linux was challenging because it was new and had only small contingency of






docker looks to improve linux kernel security with linuxkit


container vendor docker is aiming to improve linux kernel security by incubating several nascent linux security projects within its linuxkit community. linuxkit is an open-source effort that docker officially announced on april 18 as a toolkit to build container-optimized linux distributions."security is critically important for docker, and linuxkit represents an opportunity for us to help move security forward," nathan mccauley, director of security at docker inc., told eweek.within the linuxkit effort there are a series of incubated projects that are focused on improving the security of linux, according to mccauley. docker and the linuxkit project are also focused on making sure that all the linux kernel security work moves upstream into the mainline linux kernel, he added."we recognize






linuxer


challenge yourself as a geek using linux commands to discover, protect, and install software packages in your virtual machine. it about several stages and each stage has its tasks that you have to complete. the aim of game is to teach you how to use linux commands to control your linux-based operating system, currently the game has few stages and it has be increased no future. features: learn how to use linux commands: learning linux commands that used to move between directories, knowing current path, executing programs (linux commands like pwd, ls, cd, cat, exit, ). give you basic introduction to networking: how to know your machine's ip address, what is a network and how to connect to a network. learn how to protect your machine: establishing firewall for your machine, how to deal wi






how to upgrade the linux kernel with a handy gui


image: jack wallen there are certain linux distributions that always seem to be behind the curve, when it comes to kernel updates. one such distribution is ubuntu. there's a reason for that (of course); ubuntu always wants to ensure the best possible user experience. to that end, the platform tends to lag behind a bit in the kernel sector.but there are times you might want a more recent kernel running under the hood. why? new features and optimizations found in a more recent kernel can make for a much smoother, reliable, secure, and efficient experience. in order to gain the improvements found in a more recent kernel, you can always search for the right repository or even attempt an old-fashion kernel compile.more about open sourcethere's also another option — a gui. that's right, beyond t






what's new in the skype for linux beta


microsoft is finally moving its latest linux skype client to beta and adding the ability to video-conference with other people using the latest model of skype.skype for linux has finally gotten to beta status with new features.microsoft has taken its own sweet time with this move. the new version of skype for linux went into alpha in july 2016. there were some improvements since then, but they're not that impressive. more mwc 2017this new skype, though, promises real interoperability between skype for linux and the rest of the skype family. and, you know what? it delivers.i put the skype beta through its paces on the latest and greatest linux mint distribution, mint 18.1, with the cinnamon desktop. for the hardware, i used my main desktop, an older dell xps 8300. this pc has a 3.4ghz quad-






how to switch between linux distros without losing your data


switching between linux distributions can be hard when you’re preserving user data. many users have ways to combat this: cloud storage solutions, external hard drives, flash drives, home servers, etc. however, none come close to just giving the home directory its own isolated space so that it is safe from being wiped away.in this guide we’ll go over how to break out a home directory from an existing installation and protect it from future installations. it’s a tedious but simple process that is rewarding.download the partition editornote: if your hard disk already has a secondary partition that you want to move the “/home” directory to, you can follow this tutorial to migrate to the home folder.unfortunately, editing an existing linux system is not possible without a live disk. linux does 






canonical extends ubuntu 12.04 support for paying customers


i was bemused recently when i wrote a story about essential linux server commands only to have people complain about my covering older init and run-level technology instead of the controversial but popular systemd. this newer way of booting linux systems became popular in 2015. unfortunately, some readers fail to understand that a feature that's been deployed for two years means nothing for server operating system lifespans. take, for example, the five-year-old ubuntu 12.04. canonical, ubuntu's parent company, has just announced that this version of ubuntu will be given extended security support.at five, ubuntu 12.04 is an old linux, but for servers, five is the prime of life so canonical is offering to support it for years more.ubuntu 12.04 was the first long-term support (lts) version of






10 more quick tips to make linux networking easier


image: jack wallen if you either work on a linux desktop, or administer a linux server, there might be times when frustration sets in over networking issues. although linux has made significant advances over the years, there are still instances where the standard troubleshooting or optimizations won't work. to that end, you need to have some tricks and tips up your sleeve to make your life easier.as an update to my original 10 quick tips to make linux networking easier, i happen to have a few different tricks that i wanted to share with you. hopefully one or more of these will assist you in either configuring, optimizing, or troubleshooting you linux network woes.1. use static addressesif this is an option, i highly recommend it. why? control. with a static ip address you can configure mul






5 great steam alternatives for linux


steam has been on linux for a few years. since it landed many video games, including mainstream titles from big-name publishers, have found themselves on linux. this is all great for the average consumer, as one of the biggest deterrents to switching to linux is gaming support.however, some in the linux community don’t like steam. they see the commercial-gaming platform as a detriment to their software freedom, as it brings a lot of drm. as a result of this, many people who love video games on linux have had to go without. this list offers five good alternatives to steam?1. itch.iofor those looking for a solid alternative to steam, this is it. in more than one way, itch.io‘s game client and service is great. for starters, they have a pretty good desktop client for linux. like steam, you’ll






docker wants to help improve linux kernel security with linuxkit


container vendor docker is aiming to help improve linux kernel security by incubating several nascent linux security projects, within its linuxkit community. linuxkit is an open-source effort that docker officially announced on april 18, as a toolkit to build container-optimized linux distributions."security is critically important for docker and linuxkit represents and opportunity for us to help move security forward," nathan mccauley, director of security at docker inc, told eweek.mccauley explained that within the linuxkit effort there are a series of incubated projects that are focussed on improving the security of linux. he added that docker and the linuxkit project are also focussed on making sure that all the linux kernel security work moves upstream into the mainline linux kernel."






valls vs hamon in french socialists' presidential primary


paris — french voters are voting for the socialist candidate who will face a tough battle to beat rivals from the far-left, the far-right and the political center in france's presidential election this spring.sunday's choice in the socialist primary runoff is a stark one, between two candidates on opposite poles of the beleaguered party with sharply different plans for france.with a headline-grabbing proposal to pay all french adults a monthly stipend, the 49-year-old benoit hamon has emerged from obscurity on the socialist left to win the primary's first round against six other candidates last weekend.on sunday, he is facing former prime minister manuel valls.the 54-year-old valls has emphasized his experience in government, which includes a time when attackers killed 147 people in france