• How To Add Multiple SSH Keys Ubuntu Mint Linux Debian Redhat

    By default if you create a private key for SSH, it will create something like .ssh/id_rsa Linux will always search for and offer this key when connecting to servers. If you put extra keys in your .ssh directory like id_rsa_realtechtalk.com, they will be ignored by default and NOT used or offered (you can verify this with ssh -v) and see it is not being offered. Here is how you add the extra SSH keys so they are all offered: #this gives........
  • Docker Tutorial HowTo Install Docker, Use and Create Docker Container Images Clustering Swarm Mode Monitoring Service Hosting Provider

    The Best Docker Tutorial for Beginners We quickly explain the basic Docker concepts and show you how to do the most common tasks from starting your first container, to making custom images, a Docker Swarm Cluster Tutorial, docker compose and Docker buildfiles.........
  • Debian Mint Ubuntu compiling xmr-stak

    sudo apt-get install libcurl4-openssl-dev git build-essential autotools-dev autoconf libcurl3 sudo apt-get install libcurl4-gnutls-dev git clone https://github.com/wolf9466/cpuminer-multi sudo apt-get install cmake libpthread-* libmicrohttpd-dev libssl-dev libhwloc-dev git clone https://github.com/fireice-uk/xmr-stak-cpu.git make install cd bin chmod +x xmr-stak-cpu ./xmr-stak -O xmr........
  • Openshot 2.2 is very unstable always crashing in Linux Mint 18.1!

    Jun 1 15:45:42 videoeditor-desktop org.mate.panel.applet.MintMenuAppletFactory[1882]: project_data:INFO Missing folder chosen by user: Jun 1 15:45:42 videoeditor-desktop org.mate.panel.applet.MintMenuAppletFactory[1882]: project_data:INFO Removed missing file: MAH02949.MP4 Jun 1 15:45:57 videoeditor-desktop org.mate.panel.applet.MintMenuAppletFactory[1882]: ui_util:WARNING Icon theme media-playback-start not found. Will use backup........
  • mysql_real_escape_string returns an empty string solution

    This is a common mistake but many people do not realize this function comes from mysql itself, so therefore you need an active mysql connection open. Usually the string will be empty and null when you call it from outside of the database connection portion of your code. eg. an example of the wrong way and creating a null/empty string $var = mysql_real_escape_string($myself) mysql_connect(); // returns n........
  • MySQL PHP adding a backslash/escaping apostrophes Solution

    The first thing to diagnose is what is actually in the database (use PHPMyAdmin or CLI). You will of course either find that the backslash is either in the database or not. If the backslash is in the database you probably have magic quotes gpc/runtime on and/or are calling the "addslashes()" function which does this. If you are escaping your data with mysql_real_escape_string() then think again, you probably have magic quotes gpc enabled either in php.ini or........
  • lvm how to resize and extend a volume

    lvextend -L +10G /dev/kvmvm/w2k8r2evalstandard Extending logical volume w2k8r2evalstandard to 20.00 GiB Logical volume w2k8r2evalstandard successfully resized The above adds 10GB to the logical volume. Of course you must resize the filesystem using other tools to take advantage of the space.........
  • Centos Howto Upgrade to PHP 5.3 from 5.2

    It's not as simple as "yum install" as you can see below and it doesn't stop there. yum install php53 Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * rpmforge: mirror.us.leaseweb.net * extras: centos.mirror.rafal.ca * updates: centos.mirror.nexicom.net * base: centos.mirror.nexicom.net * addons: centos.mirror.nexicom.net Setting up Install Process........
  • Linux/Centos how to block SSH bruteforce/dictionary attacks automatically with denyhosts

    A lot of people become nervous (and understandably so) when checking their auth or security logs, in Centos /var/log/secure and see dozens, hundreds of even thousands of attempted logins to various services, especially SSH. Of course you could manually block these people/IPs but no one has time to read the logs like that, what if some program or script could do it for you? This is what denyhosts does for you, it checks the logs and based on a certain number of failed SSH attem........
  • mysqldump does not include CREATE DATABASE statement

    mysqldump does not include CREATE DATABASE statement you need the --databases option "--databases" is misleading, it implies in the documentation that this is a list of databases to be dumped, it should be clear that uses this command in conjuction with dumping a single database also adds CREATE DATABASE and is the only way to get the database to automatically create itself.........
  • Cygwin and crontab backups via ssh/scp/rsync

    Install the "Editors" and "Net" groups that will give you rsync, ssh, ssh-keygen and cron. The trickiest thing that I keep forgetting about each time is you have to run "cron-config" which adds the cron service to Windows, and without doing that obviously no cron jobs will be run thus making automatic backups impossible. Warning about rsync/cygwin and using the -a archive switch. It's a good thing I caught this because it doesn't work ri........
  • mencoder Linux CLI video editing how to encode video file into xvid and split by time into multiple parts

    Mencoder is great, you can throw anything at it, including video files from your camera and have it encode into xvid or almost any other format. In my case I took 640x480 video from my Canon and reduced the size by 1/3 with the options below (there are many other options that you can read about in the manual but I like to keep it simple). Mencoder Encode mencoder -ovc xvid -oac mp3lame -xvidencopts fixed_quant=4 -o ........
  • JavaScript how to do math arithmetic with floats and int

    JavaScript how to do math arithmetic with floats and intI have 3 variables some of which are just int and some float and need to find their sum It just adds them as strings for some reason.Normally this would work but the floats were actually text technically I guess since they came from a form. You need to convert them using parseFloat() and then everything is fine.........
  • The power of passive vs air cooling. Small fans make a world of difference.

    I bought a Dynatron A46G for my AMD X4 620 AM3 Quad Core CPU. Just judging by touch, the stock OEM fan/heatsink combo kept things so cool, I could leave the 1U server on the floor and it barely felt warm to the touch, including the heatsink itself. I thought the Dynatron A46G would be enough with passive cooling (it has no fan), but the same setup became burning hot on the underside of the server and also by touching the heatsink itself within minutes. I thought that th........
  • iPhone Backgrounder Adds True and Real iPhone multitasking on jailbroken phones

    Apple crippled the iPhone by not allowing multi-tasking of the non-primary apps. I use SSH a lot and I don't want to close my session just to check my e-mail, etc, now an app found in Cydia called "Backgrounder" allows just that. Although it's not perfect, we installed the correct one for "3.x" iPhones and hit "Reload SpringBoard" and the hour/circle glass has just been going for minutes. It seems like it installed fine even with the crash t........
  • Latest Articles

  • How To Stop DNSMasq from listening on all IPs/Interfaces and allow only localhost
  • du - VAS Billing Subscriptions Hack/Scam MLPremiumSub Invascom Astromart Issues Complaint
  • Docker Swarm vs Kubernetes Comparison Guide
  • When is it time to leave your VPS/VDS Cloud Hosting Provider?
  • 2024 Buyer's Guide: How to Choose and Buy the Best VPS/VDS for Your Needs - Tips and Strategies
  • Postfix / sendmail config for DKIM, SPF and DMARC Tutorial Guide E-mail Delivery for Hotmail.com Gmail.com and More HowTo
  • Install Grafana on Linux Debian Ubuntu Tutorial Guide
  • How To Completely Disable ufw in Linux Ubuntu Mint Debian
  • System has not been booted with systemd as init system (PID 1). Can't operate. Failed to talk to init daemon. Ubuntu Debian Linux Solution Cannot reboot
  • Mint Ubuntu Linux Gnome Showing Home Directory on Desktop instead of Desktop Directory
  • vi vim not doing code highlighting E319: Sorry, the command is not available in this version solution
  • Proxmox How To Rename Node Hostname Fix Solution
  • Linux how to get list of all timezones on system Ubuntu
  • Proxmox install issue cannot see the buttons or install wrong / bad resolution cannot see the entire screen problem solution
  • configure.ac:75: error: possibly undefined macro: AC_PROG_LIBTOOL If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. solution
  • Can't exec "aclocal": No such file or directory at /usr/share/autoconf/Autom4te/FileUtils.pm line 326. autoreconf: failed to run aclocal: No such file or directory solution
  • /bin/sh: autoreconf: command not found solution
  • glib-2.0 required to compile QEMU solution
  • How To Upgrade Debian 8,9,10 to Debian 12 Bookworm
  • Linux dhcp dhclient Mint Redhat Ubuntu Debian How To Use Local Domain DNS Server Instead of ISPs