If you are sure the binary/program exists, it could be that your PATH variable is broken or not set.
Just do this to set most of the common paths:
export PATH=$PATH:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
There's no risk to the above, because it just takes your current PATH variable and adds more to what is already existing.
To make this permanent you can add this to your ~/.bashrc file........
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........
Bonding is an excellent way to get both increased redundancy and throughput. It is similar to the "Network Teaming" feature in Windows.
There are a few different modes but we will use mode 6, I think it's the best of both worlds, as it is not just a failover, but it provides round robin, so you will get redundancy and load balancing. So if you have a 1G single port, you will have a combined throughput of 4G at this point. Just bear in mind that the true thr........
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.........
The problem is that by default ssh-keygen loves to generate an easy to crack 2048 bit key (RSA). Supposedly having a larger keysize helps such as 4096 or 8096 but it is thought to be useless still against Quantum computing.
How can I check my existing keysize and type?
ssh-keygen -lf /path/to/your/id_rsa.pub
The output will be something like below followed by the hash. The first number is the key size and the second part will b........
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........
#if you have nvidia make sure you install the nvidia-cuda-toolkit so hardware acceleration can be used
wget http://ffmpeg.org/releases/ffmpeg-3.3.2.tar.bz2
tar -jxvf ffmpeg-3.3.2.tar.bz2
cd ffmpeg-3.3.2/
./configure --disable-yasm
install prefix /usr/local
source path ........
This is a VIA made VL805 USB 3.0 Chipset with 4-ports and MOLEX powered. First of all this unit was cheap at about only 9 USD with fast shipping. My biggest concern was if this was a quality unit and would it really give you full USB 3.0 speeds (some people reported with similar cards that for some weird r........
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........
I created a new partition table on a newly plugged in device and it caused fdisk to hang (even force kill does not work). It also may be a bad drive or some other issue because fdisk -l hangs after the first 2 HDDs (totaly of 8 HDDs on this system):
[1232879.903596] INFO: task fdisk:27176 blocked for more than 120 seconds.
[1232879.903607] Tainted: P&nbs........
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........
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........
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.........
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........
This server has been running for weeks without issue, it's currently only using 1 of 2 CPUs as it is running in the office as a test bed (mainly due to the handle 12 bay storage/great for testing HDDs). The errors below seem to mainly be from AMD CPUs, it's only happened a single time and in the days since Igot that error it hasn't occurrred.
Interestingly enough /proc/cpuinfo still shows all 4 cores of the CPU (Opteron 2373 Quadcore HE) and the functionality doesn't seem........
Here's the link to the warranty checker and from there you can also create an RMA:
https://myapps.taec.toshiba.com/myapps/admin/jsp/webrma/addRequest1NoLogin.jsp
Note that the serial# shown in SMART is not complete as is the case for many other brand sof HDDs.
For example a 2TB Toshiba shows the following Serial Number in SMART:
Device Model:........
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........
For years I've always built cheap systems believing that there is little difference in more expensive components when it comes to reliability and quality, I generally believe this still except for Power Supplies.
I've always bought cheap cases with nice sounding 350-550W stock/cheap/crap power supplies and haven't had any issues for the most part until recently.
One such case is an NGEAR case with a 550W Optimax power supply, I always read that these supplies don't produce the........
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.........
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 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 ........
www.antec.outervision.com/index.jsp
I found that wattage/power consumption tool to be very useful, especially when you're worried that you're hitting the Power Supply's limit. You'll see very quickly that different CPU's, Graphics, Cards, HDDS use a wide range of energy. That tool can help you choose a build that won't stress or go over the maximum limits of your Power Supply.........
Seagate Inventory/Firmware Check
I heard about this issue a long time ago but never looked into it. I figured I wasn't affected since my 500GB drives were running for so long. I've been using Seagate's since 2002 and to this day all of the drives I have are alive from Seagate.
*Update the bad news is that I realize one of my 500GB's is about to die, it's not even a year old, but is also not affected by the recall according to Seagate!
Seagate Inventory/Firm........
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.........
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........
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........