Top (to show top processes using up CPU cycles) In READ-ONLY mode, you can pretty much see all of the inner workings of the systems using various Linux commands. You’re not supposed to configure anything directly from within the Linux shell on Cisco IOS XE, obviously that doesn’t apply to Guest Shell. You can obviously also use standard Linux networking commands such as sudo ifup/ifdown/ifreload, ip link show, ip addr show etc. These can help you get started from a blank state. You can also use “net example” to get a handy list of configuration snippets broken down into scenarios. You can configure L2/元 Cumulus networking stack including ACLs or VXLANS using net. You can configure pretty much everything that has to do with networking using the Cumulus Network Command Line Utility or NCLU via bash interface. Map (to see what L4 ports are open on the given machine) You can these two commands to enable or disable a specific interface.ĭig (to query DNS related info such as A, CNAME or MX records etc.) Iwconfig (to configure wireless network interface) Route (to configure to display and configure ip routing table)Īrp (to configure to display and configure ARP table) You can also ifconfig to view IP address, MTU and MAC address. You can use this command to enable/disable or assign an IP address to an interface. Linux OS running on x86 machines or servers Now, let me break down configuration and troubleshooting commands for each scope or use case.ġ. Here is a bird’s eye view of how Linux is pervasive even inside the routing, switching and security closed-source software from Cisco. You can configure, automate and troubleshoot black boxes (routers, switches etc.) from likes of Cisco, Juniper and Arista as virtually all of them run admin-accessible Linux as sort of base OS today (an exception would be boxes that run classic Cisco IOS but who cares).You can configure and troubleshoot networking devices that run modified version of Linux OS as their networking OS e.g.You can configure and troubleshoot machines running Linux (all distributions). There are at least three career benefits to learning Linux as far as networking configuration and troubleshooting are concerned.
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