This post has now been updated (slightly) 05/01/16. For more in depth installation details visit Gentoo Wiki Download the latest install CD from your local mirror for example, Internode File Mirror Create a bootable USB using Rufus or Unetbootin and boot your machine from the USB drive. When booting from
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Serial using Screen
I thought that I had already documented this but it appears not, something I get asked now and again is how to access serial devices using the Linux terminal, a perfect example of this is older Lights out Management modules. The answer is Screen. screen /dev/SERIALPORT 9600 8N1 Just replace
Read moreOpenShift – PHP not sending email. An SELinux problem.
This is an email i sent to the OpenShift user group which may be of interest to others. Hence it’s place on this blog. Subject: Openshift and php mail not sending – SELinux issue – SOLVED From: Andrew Galdes <[email protected]> To: “[email protected]” <[email protected]> Hi all, I want to share my
Read moreGet SELinux to tell you the reason for access errors – Redhat/CentOS
This article shows how to get SELinux to tell you the solution to access issues. For example, if your PHP script is no longer sending emails because SELinux is stopping it, you can get suggestions from SELinux on how to resolve the issue. For this example, we’ll fix the php/apache
Read moreVarnish load balancer with failover on Redhat
This article shows how to use a Varnish server on a CentOS/Redhat server to load balance and exclude faulty or overloaded backend servers. Make sure that your Varnish server is able to listen on port 80. This may mean turning off your web server or using different ports. Install Varnish
Read moreInstall vsFTP on CentOS/Redhat and enable TLS
This tutorial demonstrates how to install vsftp on CentOS/Redhat and configure it to allow connections over TLS for additional security. We’ll also chroot the users to their own directory. Install vsftp: yum install vsftp Edit the config file “/etc/vsftpd/vsftpd.conf” and set the following: rsa_cert_file=/etc/vsftpd/vsftpd.pem rsa_private_key_file=/etc/vsftpd/vsftpd.pem chroot_local_user=YES anonymous_enable=NO ssl_enable=YES allow_anon_ssl=NO force_local_data_ssl=YES
Read moreDetect newly added disks. Linux on VMWare.
This one liner shows how to get Linux (CentOS in this case) to detect a newly added disk on a VMWare host. This was found on “http://wingloon.com/2013/05/07/how-to-detect-a-new-hard-disk-without-rebooting-vmware-linux-guest/”. ls /sys/class/scsi_host/ | while read host ; do echo “- – -” > /sys/class/scsi_host/$host/scan ; done There you have it.
Read moreInstall and Configure Tripwire on CentOS/Redhat
This article demonstrates how to install Tripwire on CentOS and Redhat. yum -y install tripwire Then have a look at “/etc/tripwire/twcfg.txt” and “/etc/tripwire/twpol.txt”. Nothing needs changing unless you need to. I’d suggest adding “[email protected]” to “/etc/tripwire/twpol.txt” to have reports emailed to you. Run the following: tripwire-setup-keyfiles The above requires you
Read moreInstall a Gnome Desktop on CentOS or Redhat
This article explains how to install a GUI desktop (Gnome) on a Redhat or CentOS system and have the system boot to that GUI on startup. yum -y groupinstall “Desktop” “Desktop Platform” “X Window System” “Fonts” To have Gnome start on boot, you will need to edit the file “/etc/inittab”
Read moreUpgrade to php-5.5 on CentOS/Redhat
This article demonstrates how to upgrade from php-5.3 to php-5.5 on CentOS or Redhat. rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm Now run the yum command to see a list of php-5.5 options: yum list php55w* Run the upgrade using the following commands: yum install yum-plugin-replace yum replace php-common –replace-with=php55w-common You will receive a
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