Sometimes, system halt or power off will make your MySQL database crashed and you without knowing it unless you try to access those bad tables.
Run this Linux command to automatically find crashed tables and fix them.
1 | mysqlcheck --auto-repair -A -u <username> -p<password> |
Often you need view your mobile web development on mobile devices. Wouldn’t it be better to have Firefox, web developer, firebug and etc to help you?
You can change your desktop Firefox user agent string to make a mobile web site thinks you are view it from a mobile device.
Here’s how to do it.
Then you’ve done.
In above example, “BlackBerry9000/4.6.0.266 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/120″ is Blackberry Bold user agent.
Common user agents
iPhone user agent:
Mozilla/5.0 (iPhone; U; CPU like Mac OS X; en) AppleWebKit/420+ (KHTML, like Gecko) Version/3.0 Mobile/1A543a Safari/419.3
Windows mobile 6 user agent:
Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile M.N)
In case you want to get full desktop power back, just select the settings you just added, and select “Reset”
Reload vhost.conf for single domain
1 | /usr/local/psa/admin/sbin/websrvmng --reconfigure-vhost --vhost-name= |
Update AWStats for only 1 domain in Plesk
1 | /usr/local/psa/admin/sbin/statistics --calculate-one --domain-name=you-domain.com |
If you use subversion client windows command line
1 | svn help |
on a Windows system with current language for non-Unicode programs set to a different language such as Chinese Simplified.
You probably will see a screen with strange characters – garbage output in command prompt window.
It’s very easy to fix this by set an environment variable for your system
1 | Set LANG=C |
1 2 3 4 5 6 7 | #include <iostream> int main() { std::cout << "Hello world, compiled with g++ on linux" << std::endl; return 0; } |
compile this and move to your secured tmp partition and execute it. If you get a permission error, tmp partition is mounted correctly with noexec.
Software requirements:
Install packages that are required to build VMware tools:
1 | yum install gcc make kernel-devel</li> |
Step by step guide
1 2 3 | cd ~ mkdir VMware cd VMWare |
1 | cp /media/VMware\ Tools/VMwareTools-7.8.4-126130.tar.gz ./ |
1 2 3 | tar zxpf ./VMwareTools-7.8.4-126130.tar.gz cd vmware-tools-distrib/ ./vmware-install.pl |
1 | vmware-config-tools.pl |
and type y when prompt to build vmware modules
Restart your guest OS and then you should have vmware tool installed. You should be able to see your shared folder from the host OS.
troubleshooting linux high cpu utilization
1. us -> User CPU time: The time the CPU has spent running users’
processes that are not niced.
2. sy -> System CPU time: The time the CPU has spent running the
kernel and its processes.
3. ni -> Nice CPU time: The time the CPU has spent running users’
proccess that have been niced.
4. wa -> iowait: Amount of time the CPU has been waiting for I/O to complete.
5. hi -> Hardware IRQ: The amount of time the CPU has been servicing
hardware interrupts.
6. si -> Software Interrupts.: The amount of time the CPU has been
servicing software interrupts.
ps -eo pcpu,pid,user,args | sort -k 1 -r | head -10
I often upgrade Firefox to the latest versions with only conditions: google toolbar, Web Developer extension and Firebug extension supports.
I never ran into problems except with this latest version: 3.0.3
The problem: Websites with self-signed certificate are no longer working. It doesn’t give me the option to add exceptions like it used to be. (websites with exceptions added in previous versions are not effected.)
Tried this:
Go to Tools -> Option menu, select Advanced, on Encription tab click on View Certificates.
Go to Servers tab in Certificate Manager, click on Add Exception
Enter the host (https://localhost) then click on Get Certificate button.
Same problem
After some searching, some are saying to re-set one of Firefox settings in about:config. However it doesn’t work in my case.
I gave it another try in the Certification Manager by use the host name with port number. It worked!
I am glad it worked out and I don’t need to go back to 3.0.2 or wait for fix in the next version.
After a long and delayed waiting, I finally got my hands on this so called “Monster Blackberry”. Yes, it’s the new Blackberry Bold 9000 from Rogers. Unfortunately this one is not mine, it’s my friend’s.
I’ve read so much about its new features. I know what to look into within limited couple hours review time.
Speed:
Yes, it’s lighteng fast. It’s fast everywhere. Open a browser, web page viewing, go back to the home screen, go back to playlist while playing a video in media player and etc.
Screen:
Very impressive hand held device LCD. It’s smaller compare to iphone, PSP but with resolution of 480×320, super bright LCD, I can watch some movies on a Blackberry!
Compare to my Blackberry Curve, Bold supports H264 at resolution 480×272 (only one I tested so far)! My Curve only supports H264@ 16x sth from the official spec. I did try H264 320×240 on Curve, only sound with no image.
Some WinMenc settings:
mencoder.exe “D:\Download\Video\169_diablo3_di_062908_hr.mp4″ -af volnorm -srate 48000 -vf-add scale=480:272,harddup -ofps 30000/1001 -oac faac -faacopts br=128:mpeg=4:object=2 -ovc x264 -ffourcc H264 -x264encopts bitrate=500:level_idc=13:nocabac -o “D:\Download\169_diablo3_di_062908_hr.x264.avi” 2> 2.txt
call “batch\mp4-avc.bat” “D:\Download\169_diablo3_di_062908_hr.x264.avi”
3G wireless:
Fast again! It takes seconds to download google map application. I don’t see the progress bar stops at all.
Things I don’t like:
The earbud comes with the package. I like earbud, however I found it doesn’t work well with the Bold. Even it’s fully plugged into the bold, if I turn the plugged-in earphone, it effects the sound. Sometimes it becomes one channel of sound. It may be caused by bad contact or a defective earbud.
Conclusion:
Before I can get my Bold (in one month or two, financial reasons), I will stick to my trusty Curve.
Hey, I just changed the theme on my Curve to Bold precision theme clone.
some images taken by using an iphone 3G. easy on the image quality
