MySQL : Too many connection errors.

I was trying to connect to a MySQL server at work and I got connection fail “Too many connections”. Here’s the screen shot that I took using Navicat Lite client and Sequel Pro. I did Googling a bit and I found that most common problem is because MySQL has too many open client being connected […]

Posted on January 23rd, 2009 under MySQL • 11 Comments

Choosing virtualization solution

Virtualization is one of the area I’m really an enthusiast. I’ve tried many solutions from Bosh on iMac G4 and PearPC on my Windows to VMWare and VirtualBox and at last to Xen. In fact, Miroshell’s sever is hosted on a Xen instance. I’ve also tried many emulators for game console like Nintendo 64, Sony […]

Posted on January 22nd, 2009 under Virtualization • 1 Comment

Querying database structure.

There are times when we want to query a database structure for a particular table name. Or you want to find which tables a particular column name is defined. Or in my case, I wanted to find all tables that has column A and column B defined … how do I do it? If you […]

Posted on January 15th, 2009 under MySQL • No Comments

How to SSH with tunneling.

is a very useful feature of SSH protocol. I’ve used it all the time to connect to a LAN network from public / DMZ network. At extreme case, I’ve created a tunnel that goes to another tunnel to reach the host. So how do you do it? SSH Tunneling using PuTTY PuTTY is my favorite […]

Posted on January 11th, 2009 under Windows • No Comments

Understanding SSH Tunneling.

SSH tunneling is, I think, one of the most powerful and important feature of SSH protocol. It’s also known as port forwarding. So what is port forwarding? The easiest thing to explain this, I think, is by example. Let’s say you have your own server or a hosting account with shell access at some company. […]

Posted on January 11th, 2009 under System Admin • 2 Comments

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