Windows : How to register a dll
How to register a manually added dll file? Simply run the following in a command line: regsvr32 <path_to_dll_file.dll>
Windows 7 : missing location tab on user document folder
With Windows 7, it is possible to change the My Document, My Music, My Video, Favorites, Desktop, etc. user folders location to another easily by doing a right click on the folder and click on the “Location” tab. But, in some rare circumstances, such as changing the destination drive letter, you may occur serious problem. … Read More »
FTP : File transfer failed but permission correct
FTP Server complain about this error: Command: STOR upload_test.txt Response: 150 Ok to send data. Response: 451 Failure writing to local file. Error: File transfer failed The operation failed to complete even if file permission are correct. Most of the time on unix ftp servers such as vsFTPd, this may indicate that the user’s… Read More »
Remote Desktop : stop working after Windows Update
This happen after updating to Windows XP Service Pack 3 or Windows Server 2003 SP2: Microsoft added a security feature to disable RDP if Windows Firewall is disabled. Enable Windows Firewall and add exception for Remote Desktop Protocol (TCP-3389) to get it working. (Also make sure that the Windows Terminal Service is started if problem… Read More »
FTP : connection failed to LIST, Failed to retrieve directory listing
The following error occured/hang trying to connect to FTP server: Status: Connected Status: Retrieving directory listing… Command: PWD Response: 257 “/” Command: TYPE I Response: 200 Switching to Binary mode. Command: PASV Response: 227 Entering Passive Mode (xxx,xxx,xxx,xxx,xxx,xx) Command: LIST Error: Connection timed out Error: Failed to retrieve directory listing This is probably because you… Read More »
jwPlayer : video working but no sound
Common problem for jwPlayer 4.5 and less. Try delete your Web browser cache and refresh the page again. Also applicable for audio streaming (no audio on load even if the encoder and streaming server are working).
WordPress : Warning! wp-cron.php not found!
After updating WordPress, “Warning! wp-cron.php not found!” error occured when enabling WP-Super-Cache plugin. Adding the DNS fully qualified hostname to /etc/hosts at line 127.0.0.1 should resolve this issue.
Linux : How to create Ramdisk
Here is a procedure to create ramdisk on Linux. 1. Look for ramdisk devices : ls -la /dev/ram* 2. Increase size by adding the kernel parameter in the grub config file (this example assume you want a 512 Mb ramdisk) : ramdisk_size=512000 3. Format the ramdisk : mke2fs -m 0 /dev/ram0 4. Mount the ramdisk… Read More »
Linux : Network performance bench test
Use this very simple command to test the performance of a remote Linux/Unix server : iperf -i 1 -t 3 -c 0.0.0.0 (replace 0.0.0.0 with the target IP address)
Mail : SPF Record for Blackberry SMTP servers
Using SPF record restrict the hosts allowed to send message on your behalf. If you are using Blackberry device, all your e-mail are relayed through RIM servers. So to make delivery successful, you need to allow their servers. Add the following to your DNS text string to allow RIM servers to send out e-mails with… Read More »