tech notes from my desk
In continuation of the previous reverse proxy solution, here its using apache2 in /etc/apache2/sites-available/kewrunner.com.conf (for example). <VirtualHost *:80> ServerName kewrunner.com ServerAlias www.kewrunner.com ServerAdmin webmaster@kewrunner.com ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined ProxyRequests Off <Proxy *> Order deny,allow Allow from all </Proxy> ProxyPass…
Allow the multiple ports in entire range by ufw (tcp/udp) kewrunner@serv01:~$ sudo ufw allow 82301:82320/tcp [sudo] password for kewrunner: Rule added Rule added (v6) kewrunner@ser01:~$ sudo ufw allow 82301:82320/udp Rule added Rule added (v6)
Always keep running into this snag when it comes to uploading large files. Updating the php.ini parameters. This fixes lots of WordPress issues. upload_max_filesize = 512M this should do just fine on the new server :) Other useful params max_execution_time…
Connect into mysql from terminal $ sudo mysql -u root -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 25680 Server version: 10.3.22-MariaDB-1ubuntu1 Ubuntu 20.04 Copyright (c) 2000, 2018, Oracle,…
Im running CentOS in the lab environment, running into some issues with NOC saying botnet hijacked one or some of my hosts. Installing LMD found in the epel-release. yum -y install epel-release Also need to make sure inotify so that…
Cluster Software NameDetailRequiredcmanRed Hat Cluster ManagerYeslvm2-clusterCluster extensions for userland logical volume management toolsYesrgmanagerOpen Source HA Resource Group Failover for Red Hat ClusterYesricciRemote Cluster and Storage Management SystemYes Cluster Services DetailService NameStartup OrderCluster Manager: Manages the following services qdiskd, fenced, dlm_controld…
To HTTP or to HTTPS, that is the question. This lab hack takes me deep into the domain.conf which controls all the VirtualHosts *:80 and VirtualHosts *:443 entries. RewriteEngine on RewriteCond %{HTTPS} off RewriteCond %{HTTP_HOST} !^www\. RewriteCond %{HTTP_HOST| ^(?:www\.)?(.+)$ RewriteRule…
Kernel parameter to swapping app memory out of physical RAM. Currently the it defaults to 60, however I have just learned that by setting it to 0 the kernel is given preference to keeping app memory in RAM instead of…
Neat trick after subdomain is created, want to preserve the url for example lets look at this lab hack (its been edited to not reveal actual address, but it certainly works) #Reverse Proxy in Apache Syntax <VirtualHost *:80> ServerAdmin kewrunner@gmail.com…
Quick reminder on how to transfer a file to a specific port, the option is upper -P $ scp -P 91307 profile-pic.jpg superuser@{target IP}:/tmp people-pic.jpg 100% 45KB 303.5KB/s 00:00 The port 91307 is being natted using VirtualBox, this particular port…