To list all servers that have opened TCP or UDP sockets in listening state issue the following commands. # ethtool enp0s3Īn important aspect of your machine networking is to list all open network sockets in order to see what programs are listening on what ports and what’s the state of the established network connections. Other useful utilities that can be used to manage speed, link state or obtain information about machine network interfaces are ethtool and mii-tool. In order to view the network interface settings, you can inspect the content of the interface file or you can issue the below commands. In order to apply the network interface new configuration, execute nmtui-connect command, select the interface you want to manage and hit on Deactivate/Activate option to decommission and rise-up the interface with the IP settings, as presented in the below screenshots.
When you finish, navigate to OK using key to save the configuration and quit. Once you’re in the graphical interface provided by nmtui utility you can setup the network interface IP settings as illustrated in the below screenshot. To manipulate a network interface, execute nmtui-edit command, choose the interface you want to edit and select edit from the right menu, as shown in the below screenshot. In order to change the system hostname via nmtui utility, execute nmtui-hostname command, set your machine hostname and press OK to finish, as illustrated in the below screenshot. The easiest utility a beginner can use to manage and change network configurations is nmtui graphical command line.
#Gpsbabel centos 7 install#
Install System Utilities Setup Networking in CentOS 7ĬentOS 7 has a wide range of tools that can be used to configure and manage networking, from manually editing the network configuration file to using commands such as ip, ifconfig, nmtui, nmcli or route. # yum install nano wget curl net-tools lsof bash-completion Install them all in one-shot by executing the below command. The following utilities packages can prove to be useful for day-by-day system administration: nano (text editor to replace vi editor), wget, curl (utilities used for downloading packages over network mostly) net-tools, lsof (utilities for managing local networking) and bash-completion (command line autocomplete). Yum Clean All on CentOS 7 Install System Utilities on CentOS 7
#Gpsbabel centos 7 upgrade#
# yum check-updateĪfter the upgrade process completes, in order to release disk space you can remove all downloaded packages that where used in the process of upgrading alongside with all cached repositories information by executing the following command.
#Gpsbabel centos 7 update#
To fully update a CentOS 7 system, issue the following commands with root privileges. The first step you need to perform on a fresh installed CentOS system is to make sure the system is up-to-date with the latest kernel and system security patches, software repositories and packages. Important: RHEL 7 users, can follow this article to do a Initial Server Setup on RHEL 7. This tutorial will explain the first basic steps you need to go through after installing a minimal CentOS 7 system with no graphical environment in order to obtain information about the installed system, the hardware on top of which runs the system and configure other specific system tasks, such as networking, root privileges, software, services and others.