Author name: Jobin Joseph

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Screen Off widget for Android

Hey, Today, I was looking at **Screen Lock** button of my android mobile. Since i use this key frequently, It almost turned in to white colour from Silver. So i just searched in [Play store](https://play.google.com “Google Play Store”) and found an interesting Widget. Its “[Screen Off](https://play.google.com/store/apps/details?id=com.nd.android.surfaceaction.offscreen “Screen Off”)”  – One click to turn off screen […]

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Mysql TRIGGER command denied to user

Today i got a new mysql issue from one of my colleague. – Issue In MySQL TRIGGER command denied to user ‘username’@’192.168.0.112′ for table ‘abcd_table’ What you normally do ? As usual, I checked the user’s GRANTS with the following command. mysql> show grants for username@’%’; GRANT USAGE ON *.* TO ‘username’@’%’ IDENTIFIED BY PASSWORD ‘D1……….1A9F2’

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Ubuntu – System hangs on shutdown/reboot, how to troubleshoot?

The problem is with the wireless adapter. To fix it you need to do this: Open a terminal and type: “` sudo modprobe -rf rt2860sta sudo modprobe rt2860sta“` Then you need to blacklist the wrong driver: `echo blacklist rt2800pci | sudo tee -a /etc/modprobe.d/blacklist.conf` Once you have rebooted (you will need to do a hard

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How to change MTA on Centos5.6 – RHEL based server

Here you can see, how to change MTA qmail to any other you can set as simple sendmail or postfix, exim or qmail. `[root@JobNix~]#ll /etc/alternatives/mta` lrwxrwxrwx 1 root root 23 Aug 31 03:39 /etc/alternatives/mta -> /var/qmail/bin/sendmail [root@JobNix ~]# alternatives –config mta There are 4 programs which provide ‘mta’. Selection Command ———————————————– *+ 1 /var/qmail/bin/sendmail 2

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AWS – How to setup an IAM user to access only one s3 Bucket

Hi, This will explain how you can create an IAM user in AWS, so that you can grant access to only one S3 bucket. – Create an S3 bucket in AWS account. [![](https://res.cloudinary.com/jobnix/image/upload/v1415999956/jobin_2012_02_24_01_vche3d.jpg “AWS_create_s3_bucket”)](https://res.cloudinary.com/jobnix/image/upload/v1415999956/jobin_2012_02_24_01_vche3d.jpg) –  Switch to AWS IAM tab – Click Group >> Create Group [![](https://res.cloudinary.com/jobnix/image/upload/v1415999956/jobin_2012_02_24_02_azzusv.jpg “AWS_create_iam_group”)](https://res.cloudinary.com/jobnix/image/upload/v1415999956/jobin_2012_02_24_02_azzusv.jpg) – Enter a Group Name, Click Continue

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# Error We cannot seem to find what you were looking for. Maybe we can still help you. – You can search our site using the form provided below. – Or you can view some of our recent posts. Search: ### Recent Posts Jobin JosephView all posts by Jobin Joseph hazercloud.com

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MySQL Optimization

Find max connection using the formula:-  memory = keybuffer + (readbuffer + sort buffer ) max connections Open /etc/my.cnf file in your favorite editor (eg: vi, pico etc) max_connections=400 max_user_connections=30 key_buffer=256M (128MB for every 1GB of RAM) myisam_sort_buffer_size=64M join_buffer_size=1M read_buffer_size=1M (1MB for every 1GB of RAM) sort_buffer_size=1M (1MB for every 1GB of RAM) table_cache=1500 thread_concurrency=2

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