One of my clients wanted to secure their slave nodes with a firewall, and asked to install CSF on the servers. We setup a new slave node and installed CSF and everything was working fine. Created a new VPS, and noticed that the VPS IP Address is not responding. There was no ping to the VPS IP Address from outside. Logged into the server via console and the IP Address was up in the server. However there was no inbound and outbound network connections.

Thinking it could be a resolver problem, I switched the resolver entries to use google DNS as follows.

Save and quit the file. Tried to ping google.com again from the server and it timed out again...

I was working on my client’s solusvm admin panel that I got kicked out suddenly. I started getting the following message, whatever way I tried to access the admin control panel.

I tried various ways to gain access, but nothing worked. The following trick helped me.

I logged in to the server as root via ssh and whitelisted my IP Address.

I was trying to setup a php script to send mail with SMTP Authentication. The script was ready, but when executed in a browser, it displayed the following error.

The problem appears because the php pear package Net_SMTP is not present in the server. You can install it in two way.

After that, execute the script again and...

My mysql server suddenly started showing my disk space usage as almost full.

But when I issued a disk usage check on / , it returned the usage to be very little.

I was sure there is something wrong. Hence, I checked for deleted files. You can use either of the following commands.

Noticed this error in a cpanel server while starting apache. Apache refused to start with the following error.

(28)No space left on device: mod_rewrite: Parent could not create RewriteLock file

Seeing the error, the first thing that I checked was the disk space in the server but it looked fine.

I was trying to install s3cmd in my centos6 server when i got the following error.

If you are getting python dependency issues with s3cmd tools in centos6, please instal EPEL repo and it will solve it.

wget http://dl...

I had wordpress setup for one of my domains in a windows 2008 server with IIS7. All files uploads upto 30M was working fine, but more than that no luck. Then I read that IIS7 has a default upload limit of 30M. I had to do two things to get it working. Details given below.

Now...

This error normally occurs when you run the ‘load data local infile’ command in mysql.

If you are seeing this error in shell, please check this link

If you are seeing this error while running a php script, here are the following things you can test.

I have a php script as follows for testing.

The file ‘test.csv’ contains some random input and if when this script runs, my database abc_test should populate the table abctesting with contents from the file ‘test.csv’

Unfotunately, when I ran this script over browser, I got the following ...

Ever received the following error while connecting to your site via FTP????

You can correct this problem by doing the following in the FTP configuration file.

I was getting random forbidden errors on one of my websites one day. It appears and disappears and was not getting an idea as to what had happened. Upon checking the apache error log, I noticed the following error.

Normally it happens due to the open files exceeding the limit. I tried the following and that fixed it.