networking
On Ubuntu 19.04, networking service is provided by package ifupdown By default this package is not installed. So if you
Ubuntu Configure systemd-resolved
Latest Ubuntu/Debian use systemd-resolved for DNS resolution. On a fresh Ubuntu 19.04 install DNS failed to resolve. To fix this,
Configure OVH Bridge Network from command line
If you have a Proxmox or VmWare ESXi server on OVH network, you need to configure network interface once virtual
Install iperf3 on ArchLinux
To install iperf3 on ArchLinux, run To do speed test Here we do speed test with http://ping.online.net, they run iperf3
Install netdata on ArchLinux
First update the packages with Install netdata Enable and start netdata
Ubuntu remove SSH welcome message
When you login to an Ubuntu server using SSH, you get welcome message like On most Linux systems, this is
nmtui
nmtui allow you to configure network interface if you are using network manager. On Debian/Ubuntu, it is part of network-manager
Install Linux Kernel 5.0 on Ubuntu 18.04 LTS
Ubuntu 18.04 was released with Linux kernel 4.15 On 8 Aug 2019, Cannonical released Ubuntu 18.04.3 LTS with Linux Kernel
ping: unknown host localhost
On a server, ping localhost did not work /etc/hosts files was proper, had entry for localhost. problem was due to
Connect to Google Cloud SQL
To connect to Google Cloud SQL, run
Zimbra Mail Server CentOS firewall settings
On CentOS 7 server with firewalld running, used following command to open ports used by Zimbra Mail Server. See Zimbra,
Zimbra redirect webmail http to https
After Zimbra mail server installed, webmail work on url https://SERVER-HOSTNAME-HERE/ If you access webmail with out HTTPS, it won’t work.