Every now and again, you get the urge to try something new. Drupal is the project for today. The goal is to create an automated script to install Drupal on a fresh and minimal install of CentOS 6. Here is an automated scripted install for Drupal and drush, a command line supplement, on CentOS6/RHEL6 Linux. The script is not all…
Read More »The preference for me is to work on a Linux box in a terminal. However, recently encountered the need for GUI. I happened to have a CentOS 7 install with GUI, but the default boot will boot into NON-GUI. GUI to CLI to GUI Commands # Check the current settings systemctl get-default # Change to GUI mode. systemctl set-default graphical.target…
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Sometime ago, I wrote an automated script to install WordPress on a CentOS 5 install of Linux. Over the years, the repos and WordPress requirements changed as did CentOS upgrades through CentOS 6. The script was modified accordingly. The script had to be modified considerably for CentOS 7 which facilitates the need for a new article. Here is an automated…
Read More »There are many tools to check the hard drive performance on Linux system. Here we are are concentrating on hdparm. A CentOS 6.7 Linux distribution is what is being used for this article. To install it, yum install -y hdparm. A sample run, hdparm -Tt /dev/sda The man pages (man hdparm) will offer many different configuration options, the two switches…
Read More »A typical situation is one where there is a directory that contains many files. Maybe 100s of files or more. Searching through however many files for a specific string can get annoying, however, here are a couple of ways to do just that. Note that there are many more, but this really isn’t the point of this article. A use…
Read More »htop, an interactive process viewer for Linux. It is a text-mode application (for console or X terminals). It is a powerful alternative to using the top command. Here is a little script to install htop, which can easily be applied to any number of other simple installs too. #!/bin/bash cd /opt # Download and install if [ $(arch) = “i686″…
Read More »If you are using something like imap.mail.yahoo.com or outlook.office365.com and would like to add a firewall rule to open the appropriate IPs to access could be quite a challenge. These IPs seem to change often. Here are a couple of command lines that may help sort through this mess. Typically, a simple command would be executed with results. nslookup outlook.office365.com…
Read More »Rootkit Hunter is a security monitoring and analyzing tool for POSIX compliant systems. Well, at least that is the official definition for this utility. From the man pages, rkhunter is a shell script which carries out various checks on the local system to try and detect known rootkits and malware. It also performs checks to see if commands have been…
Read More »The Microsoft WSUS server can and has run out of disk space. The appropriate items for updates are selected, the appropriate languages are selected, but in the end the server runs out of space. The native WSUS cleanup wizard doesn’t seem to be of much use when trying to correct this. Here is a process that I have found and…
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One of the MySQL servers was running out of space, it turned out to be over 7GB of bin logs filling up the hard drive rather quickly. Since this server is not replicating, then a few modifications to the my.ini or my.cnf file will disable this “feature”. Edit the my.cnf file. Yours may be somewhere so search for it with…
Read More » Every now and again a MySQL root password may have been forgotten or undocumented along the way, but that does not negate the need to access the MySQL server. There is a way to gain access to the MySQL server to change the password for root and eventually log in as root. Applies to: CentOS / RHEL / Scientific Linux…
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Using a CentOS 7 box running a Plex Media Server and an Apache reverse proxy on the same box without a domain name and only an IP address and after much trial and error, a working Apache configuration file finally materializes. The goal was to eliminate the need of typing the port number to access the Plex Media Server web…
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After a few years and many yum updates later, the hard drive begins to fill up. There may be many versions of the Linux kernel. Many of which may be removed and to do this the yum-utils package is needed. Pre-CentOS 8 Install the yum-utils package. yum install -y yum-utils Check your running version. [root@server01 opt]# uname -a Linux server01…
Read More » After creating a usable MySQL database backup script and having tested it throughly, I put it in the /etc/cron.daily directory where I had expected it to run automatically. I had even tested it from that directory manually with success. After some time had past, I realized that the script was running as it read in the logs; however had only…
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Every now and again I perform a Microsoft Windows Search of a folder. The results are incomplete as the folder may contain PDF files. The PDF files are not being searched for content. There are a few simple steps to determine if PDFs are being indexed. Go to your Start Menu > Control Panel > View by: Small icons > Indexing Options >…
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Great, so you have another service running on your Linux box. It’s main purpose is to intercept an email, run rules against it, and either mark it as spam or not. Either way, it sends the email through and you still have to deal with the message on the email client. From the email client, you could make the necessary…
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SpamAssassin is an e-mail spam filter which uses content-matching rules. For this install, CentOS 6.6 (64-bit) and Sendmail are used. Enable EPEL repository. One way is to download and install the EPEL repository. wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm yum install -y epel-release-6.8.noarch.rpm Another is to edit the /etc/yum.repos.d/epel.repo file and change enabled=0 to enabled=1 under the [epel] section. [epel] name=Extra Packages for Enterprise…
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