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Linux Server Managment
Rsync (Remote Sync) is a most commonly used command for copying and synchronizing files and directories remotely as well as locally in Linux/Unix systems. With the help of rsync command you can copy and synchronize your data remotely and locally across directories, across disks and networks, perform data backups and mirroring between two Linux machines….
Google Chrome may be a popular and easy to use browser, but it plays fast and loose with website designers’ wishes regarding forms on their sites. It autocompletes form fields – useful sometimes, but it doesn’t always get the values right. And it’s a security nightmare if you’re using a public computer. Not only that,…
There comes a time for most serious WordPress developers when they are developing a WordPress site but need a separate PHP page which needs to access WordPress variables, functions and classes, but which for some reason cannot be part of the theme or a plugin. Here’s the coding pattern for that: <?phprequire ‘wp-load.php’; /* your totally…
If you want to get a list of the directories and their sizes in a list format then siply use the below: du -h Provides this but it displays all of the sub-folders. du -h –max-depth=1 Alternative If –max-depth=1 is a bit too long for your taste, you can also try using: du -h -s…
This step-by-step walkthrough with screenshots, howto install CentOS (The Community ENTerprise Operating System) 7.7 Linux with Network installation (NetInstall). CentOS 7.7 is released and it brings all Red Hat (RHEL) 7.7 goodness to all CentOS 7.7 users. Want just CentOS 7.7 Netinstall mirror URL? Goto CentOS 7.7 Netinstall URL 1. Download CentOS 7.7 Net Install…
Over the last few months I have been receiving increasing numbers of emails which go along the lines of: Two years ago I made a comment on your article (TITLE HERE), which linked to my website. Now I am trying to remove all comments that link to my site, would you mind deleting the comment?…
Every so often I get an email from someone asking about how to get started as a web desiger or web developer. I don’t always have time to reply, and to be honest I’m not a career advice guru anyway. Here’s a useful website that discusses ways to get into the web design industry from…
Prerequisite: This tutorial covers adding a new disk drive to your linux computer. First it is assumed that the hard drive was physically added to your system. IDE based systems, can support two drives on each ribbon cable. The cable is attached to either the Primary or Secondary IDE controller. A “jumper” is pressed onto…
Here’s a simple trick to find the last day of a month using PHP. $date_of_last_day = date(“Y-m-t”, mktime(0, 0, 0, $month, 1, $year)); This will give you the last day of any given month/year combination in the form YYYY-MM-DD. Read moreAmpere Hardware & Kali Linux | Kali Linux BlogFor example, if you pass in a…
How many times have you handed over a project to a client, only to receive a phone call two weeks later saying “I think I broke the site…”? Maybe your client used the theme file editor that is built in to the WordPress admin pages, without having a clue about what they were doing. Sure,…
These days WordPress lets you choose an admin username when you create a new installation, but there are probably still millions of WordPress sites out there with an admin username of “admin”. This is not great for security, as it is one less thing for a hacker to guess or obtain. It’s far better to…
The file that actually handles WHM > DNS Functions > Nameserver IPs area is at /var/cpanel/nameserverips.yaml location. If you want this to be changed, you’d want to make a backup of that file first and then modify it: cd /var/cpanel cp nameserverips.yaml nameserverips.yaml.back nano nameserverips.yaml
If you are new to linux you probably will wonder how to change the hostname of your computer or server. (A hostname is the unique name by which a network attached device is known on a network.) If you enter the wrong hostname during the installation, and you need to change the hostname, here is…
When running a ‘yum update’ under CentOS, there are certain packages you may be running which you wish to remain static, or which can potentially cause errors with the update eg. Samba. In these situations it is useful to force yum to exclude certain packages from being updated under CentOS. Yum uses a configuration file…
If rpm / yum command hangs during operations or you see error messages – it means your rpm database corrupted. /var/lib/rpm/ stores rpm database just delete the same and rebuild rpm database: Command to rebuild rpm database rm -f /var/lib/rpm/__db* rpm –rebuilddb -v -v
Forcing the restore of a transfered cPanel account , even if the new system says the username is all ready in use /scripts/restorepkg –force –skipres <account.tar.gz>
When installing the CSF firewall on your CentOS server, you need to make sure that you have libwww-perl installed This is easily done by installed it with yum on CentOS 5 yum install perl-libwww-perl
Want to remove Tomcat from cPanel? Log-into your server as root using ssh: Execute the following command to stop the Tomcat process: # /usr/sbin/stoptomcat Read moreKali Linux 2021.4 Release | Kali Linux Blog…and to remove the next files, enter: # rm -f /usr/sbin/starttomcat # rm -f /usr/sbin/startomcat # rm -f /usr/sbin/stoptomcat Finally, remove all mod_jk…
Issues with suhosin or mod_security , then best check your Apache error logs tail -f /usr/local/apache/logs/error_log
When troubleshooting the Exim log file: tail -f /var/log/exim_mainlog If you need to restart or rebuild Exim, you can dump your databases * /etc/exim.conf * /var/spool/exim/db Read moreAmpere Hardware & Kali Linux | Kali Linux BlogWhich Exim just rebuilds automatically by issuing the following command via SSH: rm -fv /var/spool/exim/db/* Then to start Exim: Read…