So this one is more of a hardware issue than anything else however it is a common MacBook Pro problem so I thought I had better share it with you. Now I clean my MacBook regularly with Antibacterial wipes simply because I take it all over the place work, train,
Read moreAuthor: Andrew Galdes
A Linux and Cybersecurity expert in Australia.
RHCE, Linux+, Sec+, CySA+, CASP+, CISM
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Fix Munin Graphs – When they wont update
This article explains how to fix Munin graphs that wont update or have stopped updating. The official FAQ (http://munin-monitoring.org/wiki/faq#Q.Thegraphsarenotupdatinganymore) doesn’t really say much about it. So do this: More info: This is an interesting article related to the issue. “http://grokbase.com/t/sf/munin-users/1166b12gsk/increase-in-period-for-munin-cron-or-munin-update-results-no-graphs”. First, disable munin cron task: mv /etc/cron.d/munin ~/munin.cron Wait until
Read moreGet MySQL Database Sizes
Log into MySQL and issue the following command as it is: SELECT table_schema AS “Database name”, SUM(data_length + index_length) / 1024 / 1024 AS “Size (MB)” FROM information_schema.TABLES GROUP BY table_schema; And you’ll get something like the following: +——————–+————–+ | Database name | Size (MB) | +——————–+————–+ | my_db1 |
Read moreEncrypt Large Files With OpenSSL Using Public/Private Keys
This article explains how to encrypt large files with OpenSSL and Public/Private keys. Create your key-pair: openssl req -x509 -nodes -newkey rsa:2048 -keyout private.pem -out public_nopass.pem Encrypt your larger file: openssl smime -encrypt -aes256 -in bigfile.tar -binary -outform DEM -out bigfile.tar.ssl public.pem Decrypt your file: openssl smime -decrypt -in bigfile.tar.ssl
Read moreInstall Munin Node (Client) on Redhat/CentOS
This article explains how to install and configure the Munun Node on a Redhat or CentOS server. The Munin Server was documented previously. First you need to install the packages: rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm yum install -y munin-node chkconfig munin-node on Make sure to allow TCP port 4949 through your firewall
Read moreInstall Munin Server on Redhat/CentOS
This article explains how to install Munin Server on CentOS and Redhat. This article doesn’t deal with the client (node) side of things. The Munin Node is documented here. Install the Munin Server packages: rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm yum groupinstall “Web Server” yum install -y munin php You can change the
Read moreWatch a directory for changes with inotify
The following is a quick and simple way to watch a directory for changes and then report any such changes into a file. For this example the watched directory is /var/www/ and the log file location is /srv/log.txt apt-get install inotify-tools apt-get install screen screen -S “inotify script” inotifywait -m
Read moreMinimal Nginx and PHP-FPM on CentOS
This article explains how to install a minimal Nginx server with php-fpm on a CentOS server. Install the packages: yum install nginx php-fpm php And here is the sample virtual-host config “/etc/nginx/conf.d/agix.com.au.conf”: server { listen 80; server_name agix.com.au *.agix.com.au; access_log /var/log/nginx/agix.com.au.access.log; error_log /var/log/nginx/agix.com.au.error.log; root /var/www/agix.com.au; index index.php; location / {
Read moreCreate a Linux based Minecraft Server
The following will guide you into creating a linux based Minecraft server, the example is running on a Ubuntu 12.04 box however this should work any similar distro. First if all we need to make sure that you have java installed, use the command below to do this. If you
Read moreFind network link speed with powershell
This is a simple command that will allow you to check the link speed of your Windows boxes using powershell, just replace localhost with the name of the machine you want. Get-WmiObject -ComputerName ‘localhost’ -Class Win32_NetworkAdapter | `Where-Object { $_.Speed -ne $null -and $_.MACAddress -ne $null } | `Format-Table -Property
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