have two WAN connection. The first WAN connection connects via FTTH modem. The second connection connects via 4G LTE CPE modem. I have configured fallback and load balanced dual WAN connection on my pfSense
box. However, once in while the Internet connection either one of the WAN goes down. How can I tell pfSense to send an email notification when fallback (or any) WAN connection goes down? How to configure pfSense email notification when an alert happens?
run a couple of OpenBSD and FreeBSD guest/virtual machines under KVM. My server has 32GB ram and 4C/8T Intel Xeon CPU. Everything was working fine until recent CentOS Linux 7 kernel update. After a fresh reboot of my CentOS 7 Linux box OpenBSD and FreeBSD machine become very slow and after 24 hours stop responding to the network request. How can I solve significant performance problems with BSD family of oses running on CentOS 7 KVM?
am getting an error that reads, “Your connection is not secure” when trying to redirect https://theos.in/ to https://www.theos.in/ domain using HTTP 301. How do I redirect Nginx non-www to www domain over SSL?
have Debian Linux VM running on KVM. I think I forgotten the password for the root account and I am no longer able to run ‘su -‘ command. How do I reset the password for the root account for KVM VM which is in qcow2 format? Continue reading “How to reset forgotten root password for Linux KVM qcow2 image/vm”
have set up a bash alias named file_repl
. It works entirely when I log in using ssh command. However, my bash aliases are not running over ssh, for example: $ ssh email@example.com file_repl
bash: file_repl: command not found
How do I run bash shell aliases when I use ssh command?
am trying to login to my mysql/mysqld server using the following Unix command: $ mysql -u foo -h 172.16.5.100 -p dbnmame
But greeted with the following error on screen: ERROR 1129 (HY000): Host ‘172.16.5.100’ is blocked because of many connection errors; unblock with ‘mysqladmin flush-hosts’
How do I fix this problem on a Linux or Unix-like system?
hen I log in to my Ubuntu Linux 16.04 LTS AWS cloud server, I get the message on screen: /dev/xvda2 should be checked for errors
. I can not run fsck command on /dev/xvda1 because it is mounted. How do I check my disk for error without corrupting data?