535 authentication failed in Roundcube Webmail
zam If you encounter this kind of error SMTP error 535 Authentication Failed while sending an email from Roundcube Webmail, then you can check the following things. The error that probably…
linux
VirtualBox ‘/etc/init.d/vboxdrv setup’ issue
Have you encountered this kind of problem when using VirtualBox on Ubuntu? Kernel driver not installed (rc=-1908) The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is…
WordPress permalinks with Nginx
If you are on Apache(mod_rewrite), WordPress will automatically add the required rewrite rules to your .htaccess file for permalinks to work. Just add code generated by WordPress in .htaccess, and…
Install DenyHosts on Ubuntu 12.04
DenyHosts is a security tool written in python that monitors server access logs to prevent brute force attacks on a virtual private server. The program works by banning IP addresses…
Create subdomain on Nginx + Bind9 on Ubuntu server 12.04
1. Edit you bind & dns configInsert this to db.domain.net blog IN CNAME domain.net. 2. Edit /etc/nginx/sites-available/defaultAdd this: server { listen 80; root /usr/share/nginx/www; index index.php index.html index.htm; server_name domain.net;}…
ssh exchange identification: Connection closed by remote host
This error is caused by problems in your hosts.deny. If you installed all the recommended packages in Ubuntu, you’ll most likely have Denyhosts. If not, /etc/hosts.deny won’t exist, thus this…
Install pip on Ubuntu 12.04
Install pip and virtualenv for Ubuntu 10.10 Maverick and newer sudo apt-get install python-pip python-dev build-essentialsudo pip install –upgrade pipsudo pip install –upgrade virtualenv For older versions of UbuntuInstall Easy…
EnvironmentError: mysql_config not found
If you encounter a error something like this: EnvironmentError: mysql_config not found Then, you nedd to install this package: sudo apt-get install libmysqlclient15-dev
ImportError: No module named gridfs
If you encounter problem like this: ImportError: No module named gridfs Then you should install this package: apt-get install python-pymongo
socket.io’s `listen()` method expects an `http.server` instance
For people that has this problem when using node.js & express app, here I show you way to solve it. The error that you will see upon start the node.js:…