Sudo is a program that allows users to run programs with the security privileges of another user (normally the superuser, or root). The /etc/sudoers file controls who can run what commands as what users on what machines and can also control special things such as whether you need a password for particular commands. To add…
This guide will show you how to create transparent div element in HTML. What we need is 1 x 1 pixel transparent .png file which is created using Photoshop. 1. Create new image in Photoshop with dimension 1 x 1 pixel. 2. Press Ctrl-+ few times to magnify the image to 1600% 3. Click Paint…
Download version 0.30.6 from this link. # cd /root # wget http://sourceforge.net/projects/ehcp/files/ehcp_yeni.tgz/download Extract the file Backup current EHCP # copy -R /var/www/new/ehcp /root/backup_ehcp Copy new EHCP # copy -R /root/ehcp /var/www/new/ Copy config.php from backup # cp /root/backup_ehcp/config.php /var/www/new/ehcp Open browser and go to http://your_ip and login to EHCP. If you have logged in already,…
Below is shell script to load Windows’ folder share using Ubuntu 10.10: —
MySQL or MariaDB install has default value of sql mode named STRICT_TRANS_TABLES. The MySQL docs for STRICT_TRANS_TABLES state: Strict mode controls how MySQL handles input values that are invalid or missing. A value can be invalid for several reasons. For example, it might have the wrong data type for the column, or it might be…
What is DNS tunnel? Technique to tunnel IPv4 data through DNS server. Why do we use DNS tunnel? We use DNS tunnel when in situation where our internet access is blocked by firewall, but DNS queries is allowed (e.g: in office, hotspot internet). Requirements: Ubuntu PC Iodine package Windows PC to test the tunnel…
Few days ago I bought VPS account which I installed Ubuntu 11.04. This is how I installed OpenVPN into the VPS. The network configuration: # ifconfig lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:11947 errors:0 dropped:0 overruns:0 frame:0 TX packets:11947 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1287068 (1.2…
Images as static content on website are usually be cached by browser. Using PHP we can make the image can’t be cached and always loaded from server by putting random number behind the image file. The HTML output will be: The number 1331835943 is generated dynamically by PHP that forces the browser to always load…
The assumption here is that apache web server already installed in system. Below is guide on how to install MRTG and SNMP packages. 1. Install MRTG and SNMP 2. Configure SNMP Backup configuration file: Create new configuration file: And replace the current content with these lines: Edit /etc/default/snmpd And make sure the file contains these…
This is tutorial how to install true type font in FreeBSD. Load freetype module in /etc/X11/xorg.conf file inside “Module” section: Load “freetype” And then, create folder for True Type Font (.ttf). It has default location in /usr/local/lib/X11/fonts/TTF. Copy all .ttf files to this folder (some files have Microsoft license, it is not legal to copy). Create fonts.dir…