1. Append below lines in /etc/sysctl.conf: net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 NOTE : To disable IPv6 on a single interface replace “all” on the first line with “eth0” or the name of the selected ethernet interface 2. To make … Continue reading →
Running ssh across a vpn connection I started having my ssh sessions fail to connect. After starting ssh with the “-vvv” option, the session would timeout after getting a debug1: expecting SSH2_MSG_KEX_ECDH_REPLY After doing some research, I found other people … Continue reading →
Note: You need supervisor privileges to make this change. Select the power icon in the upper right corner. Select your username from the drop down list Select Account Settings form under your username Select the Unlock button at the top of … Continue reading →
To start or stop virtual machines using ssh or the console, you will need to use the bash prompt. There is more than one way, but this is the way I prefer First check which virtual machines are available: virsh … Continue reading →
….and you have no sound Fix: Start a bash prompt and as the user who is having problems (Not root or su – !!) run the two following commands pulseaudio –kill pulseaudio –start –log-target=syslog Your outputs should be back Applies … Continue reading →
System: Centos 7 running bind-chroot-9.9.4 and Selinux enabled Secondary zone files when transferred have the following entry in /var/log/messages Apr 19 12:43:16 ns1 named[3892]: transfer of ‘1.10.10.in-addr.arpa/IN’ from 10.10.1.40#53: connected using 10.10.2.4#56641 Apr 19 12:43:17 ns1 named[3892]: zone 1.10.10.in-addr.arpa/IN: transferred … Continue reading →
yum -y install NetworkManager-l2tp-gnome ppp pptp pptp-setup
Continue reading →I updated my desktop machine to Centos 7.4 and my desktop icons were suddenly huge! After a bit of plugging around I found the fix Find the application “dconf Editor” under Applications – System Tools * Drill down to org … Continue reading →
The upower cli tool will get you a large amount of information about power and batteries in your system. Install upower using the command yum -y install upower To enumerate the devices upower can get information about on your system … Continue reading →
Create a file named /etc/polkit-1/localauthority/50-local.d/50-org.libvirt-group-access.pkla and put the following lines in it [libvirt group Management Access] Identity=unix-group:libvirt Action=org.libvirt.unix.manage ResultAny=yes ResultInactive=yes ResultActive=yes Create a group name libvirt (if it does not already exist) groupadd libvirt Put each user who needs access … Continue reading →