Centos 7 static ip address configuration
- Centos 7 static ip address configuration how to#
- Centos 7 static ip address configuration install#
- Centos 7 static ip address configuration plus#
Whenever the server restarts, it does not come back up with that 162 IP, so I have to SSH in and run systemctl restart network which is not ideal. The ens33 interface seems to now use both the 35 and the 162 IPs, however the 162 is listed as secondary. If I run systemctl restart network followed by ifconfig I get this. Configure CentOS with Multiple IP Addresses Article Table of Contents Introduction IPv4 Info IPv6 Info Example for CentOS 8 Example for CentOS 6 and 7 Nameservers. UUID=406e6735-749c-411f-b578-a9a4384ec322Īs far as I can tell, that configuration should work to keep that interface set to the static IP of XX.XX.XXX.162. The IP of this server is supposed to be static, so I checked the configuration file located at /etc/sysconfig/network-scripts/ifcfg-ens33 and found the following: TYPE=Ethernet The ens33 interface is now using an IP of XX.XX.XXX.35. I logged into it and ran ifconfig and got In this tutorial, I will cover Linux static configuration on CentOS 6.
Centos 7 static ip address configuration plus#
Static configurations usually need IP addresses as well as DNS resolvers plus routing. When this server came back online, it was no longer accessible through the XX.XX.XXX.162 IP address it had been using since it was initially set up. There are two methods to assign network configuration to a device on the net. However, last week we had a power failure that caused most of our servers to restart. For the past year or so, I've never had any issues with this server. In CentOS interface name is typically start with en, in our case, we will assign the following network configuration to the enp1s0 interface (see the next section to know what all network devices are present in our environment). You might consider doing the same.I have a Centos7 Server that hosts a Jira installation, and doesn't do much else. I've lately begun switching my CentOS 8 servers to the much lighter systemd-networkd, which is a bit better integrated into the system, but doesn't support desktop/laptop systems (particularly WiFi) as well.
This applies to Nagios Fusion, Nagios Log Server, Nagios Network Analyzer and Nagios XI. This KB article applies to RHEL, CentOS and Oracle Linux, as well as Ubuntu and Debian. Of course, Hyper-V has its own Virtual Machine Connection, but it doesn’t play well enough with CentOS.
Centos 7 static ip address configuration how to#
While NetworkManager excels at managing networks for desktop/laptop systems, and certainly works for servers, it's quite heavy for that purpose. This KB article shows you how to configure your Nagios server with a static IP address. Configuring a static IP address isn’t a requirement to run the OS, but it makes a lot easier to connect to the machine through remote desktop. If the name differs, you can edit the file and change the interface name within, then reload NetworkManager. You can use ip link to see the current interface name.
Centos 7 static ip address configuration install#
It looks like you had the interface name ens192 at install time. This often happens with virtual machines running under VMware products. What has probably happened here is that the interface name has changed from what it was during installation.
It uses a plugin called ifcfg-rh to read the old network service configuration files (used in CentOS 6 and previous versions) such as the one you mentioned and translate them into the appropriate NetworkManager configuration. CentOS / RHEL 7 : Configuring static IP adress using network interface configuration files. Each physical network device has an associated network interface configuration file. The posts discusses the use of network interface configuration files to configure the IP address. By default, networking on CentOS 7 and 8 is managed by NetworkManager. There are various ways you can configure an IP address in RHEL 7.