Let’s say you’ve issued a long command and don’t want to type it again. I think you know that all linux commands entered could be shown by issuing history command. History outputs an ordered list of commands that were executed before by current user. In order to find the command you want, you should enter the following: history… Read More »
Often when you’re using shared hosting, there are some problems with directory listing. Server administrators should avoid this as this represents a security hole. But what to do if you don’t have access to httpd conf and need to prevent directory listing? What to do if you have something like this: A simple string in .htaccess file will… Read More »
Today I’ll write about the rarely used Directadmin feature named Site Redirection. If you’re not familiar with htaccess and want to create some redirects, then this is especially for you. The interface is easy to understand. You have to enter Local URL Path, Redirect Type (It will be visible in request headers. I’d suggest to use 301 if… Read More »
Today when I tried to perform some MySQL tasks and got error 28. After several searches I found that this error means that no free space is left on server HDD. When I ran df command, I was very surprised, but my disk usage was 100% – so much that MySQL couldn’t even create a log file. It’s… Read More »
Recently I have had the problem with e-gold automation. E-gold server refused to accept my IP for an unknown reason. I had to send some payments so I triple checked the code, tried different solutions before I got the Idea to try this code from another server IP. This worked and I was happy that my server came… Read More »
Recently I’ve seen many solutions on how to install Zend Optimizer using custom build script in Directadmin. I’d like to show you how to install it on almost any linux server using usual linux commands. First of all, let’s download it from Zend server (they require to register in order to obtain this link. wget http://downloads.zend.com/optimizer/3.2.8/ZendOptimizer-3.2.8-linux-glibc21-i386.tar.gz Then we’ll… Read More »
Today I’ll come with a small piece of code that will allow you to monitor the number af requests to Apache that are processed at the moment. This might help you to prevent server overload as you will always know what’s happening to your Apache. We’ll parse server-status page and will take the number of requests. Simple and… Read More »
In this post I’ll describe the process of creating a tar.gz archive in linux. It is a common practice to create backups or transfer files between servers using such archives. It is quite easy to create them and I’ll show you how to do it. First of all you need to create a tarball – an archive that… Read More »
Today I won’t write many letters, I’ll show a simple code that allows to sort file contents by alphabet. <? // Getting file into array $stroki=file(“unsorted.txt”); //Sorting it without keys – we don’t need them sort($stroki); // Writing sorted strings to a new file $fs=fopen(“./sorted.txt”, “a”); foreach ($stroki as $string) { fwrite($fs, trim($string).”rn”); } fclose ($fs); echo “Completed”;… Read More »
Let’s a take a common situation – you have a directory with a big number of files and you need to sort these files by size. Here is the code that will help you to do this in PHP. Quite short and fast. <?php // Path to the directory with big number of files $dir = “../files/”; //… Read More »