Disable Network Proxy Authentication Popup There is a specific issue that causes users to receive a popup asking for the root password after logged on. The below workaround will work for CentOS 7.x and 6.x too. Workaround Create a … Continue reading →
Check these two items in the /etc/systemd/logind.conf PowerKeyIgnoreInhibited=yes SuspendKeyIgnoreInhibited=yes Tested with Centos 7
Continue reading →I started using Gnome 3 on Centos 7 because the bluetooth support was not complete in Mate. I discovered several items to make it work better. yum install gnome-shell-browser-plugin This will allow you to easily install the gnome extensions from … Continue reading →
You execute: systemctl start xrdp and the service does not start and you find the following in the messages log Apr 7 16:01:22 myserver systemd: Started xrdp session manager. Apr 7 16:01:22 myserver systemd: Starting xrdp session manager… Apr 7 … Continue reading →
Installation Centos 7 rpm –import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm yum -y install drbd84-utils kmod-drbd84 Centos 6 rpm –import http://elrepo.org/RPM-GPG-KEY-elrepo.org rpm -Uvh http://elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm rpm –import ‘http://keys.gnupg.net:11371/pks/lookup?search=0x0608B895&op=get’ yum -y install drbd84-utils kmod-drbd84 Configuration create /etc/drbd.d/drbd1.res resource repdata { protocol … Continue reading →
Some RAID Controllers, many fake RAID controllers and software raid put a signature on both the beginning and/or ending of the space on a hard drives. This many times creates problems when reformatting the drives or reloading the system after … Continue reading →
Centos 7 Enable yum repository by logging in as root at a bash prompt, then cut/copy/paste the following: cat << EOF > /etc/yum.repos.d/google-chrome.repo [google-chrome] name=google-chrome – $basearch baseurl=http://dl.google.com/linux/chrome/rpm/stable/$basearch enabled=1 gpgcheck=1 gpgkey=https://dl-ssl.google.com/linux/linux_signing_key.pub EOF You will see the following [root@mycomputer ~]# cat … Continue reading →
Update!! Use these instructions instead: https://docs.fedoraproject.org/en-US/Fedora/23/html/System_Administrators_Guide/sec-Configuring_GRUB_2_Using_the_grubby_Tool.html A typical CentOS 7 Linux system has multiple kernels. How many kernels you have in your CentOS systems depends on the configuration setting. Sometimes you might feel the need to change the … Continue reading →
In linux, hard drive dev assignments can get changed between reboots – especially with external/removable drives. This means using /dev/sdX or /dev/hdX is not the best way to mount a drive that needs to be mounted every time at boot. … Continue reading →
I have found the following two sites helpful in finding issues with the configuration of SSL secured web sites https://ssltools.digicert.com/checker/ https://www.ssllabs.com/ssltest/analyze.html Test which ciphers (TLS, SSL, etc) are enabled nmap -sV –script ssl-enum-ciphers -p 443 www.yourdomain.com Ref: https://nmap.org/nsedoc/scripts/ssl-enum-ciphers.html
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