These commands are useful to troubleshoot network connectivity in general or between specific hosts in the network. Another practical application forssis to verify whether network services are listening on the
These commands are useful to troubleshoot network connectivity in general or between specific hosts in the network. Another practical application forssis to verify whether network services are listening on the local machine with the correct address and port. To verify listening sockets, use the option...
Linux network troubleshooting commands and tools Linux network troubleshooting: Examples & use cases Use case 1: virtual machine network connectivity issues Use case 2: DNS does not resolve domain names Use case 3: external access to application running in virtual machine Use case 4: connect server...
Run Commands in a Non-default VRF You can use ip vrf exec to run commands in a non-default VRF context. This is particularly useful for network utilities like ping, traceroute, and nslookup. The full syntax is ip vrf exec <vrf-name> <arguments>. For example: cumulus@switch...
ifupdown2 batches iproute2 commands for performance reasons. A batch command contains ip -force -batch - in the error message. The command number that failed is at the end of this line: Command failed -:1. Below is a sample error for the command 1: link set dev host2...
If not, you can get more details from the adapter using the following commands: sudo lshw -businfo sudo lshw -c network You should get a result that looks something like this: product: Intel8720A Wireless Network Adapter Is the wireless device listed? If the wirele...
One can verify or troubleshoot the problems related to DNS through this command. It is also used to perform lookup operations for DNS. The command replies to the queries related to the name server added along with the commands. One can find this tool in the majority of the LINUX ...
Before you troubleshootTo troubleshoot Scenario 1: Network Hyper-V driver is disabled and Scenario 2: NIC mac address is changed or doesn't match, you need serial console access for your Linux VM.If you don't have serial console access, follow the offline approach to access the contents ...
To configure the kdump to panic and generate a vmcore when the NMI button is pushed, enter the following commands: Raw # vim /etc/sysctl.conf … kernel.unknown_nmi_panic = 1 kernel.panic_on_io_nmi = 1 kernel.panic_on_unrecovered_nmi = 1 ...
Managing networks is the primary job of a Linux administrator. As a Linux enthusiast, you learn many commands, tools, and utilities the administrators use to configure, manage, and troubleshoot network settings. This tutorial explains these commands in detail with examples. ...