Tag Archives: VTY
Cumulus Linux on Dell Switches: Spine-Leaf Architecture & OSPF on Unnumbered Interfaces
In a prior blog, Cumulus Linux on Dell Networking Switches, I demonstrated how to install Cumulus Linux on a Dell S6000 switch and do some basic configuration. In this blog, I’ll demonstrate how to configure routing on Dell switches running … Continue reading
Posted in Cumulus Linux, Dell, Dell Force10, Labs, Network Architecture, Networking, Protocols, Technology
Tagged /etc/network/interfaces, /etc/quagga/daemons, Cumulus, Cumulus IP Address Configuration, Cumulus Linux, Cumulus Linux loopbak configuration, Cumulus Linux management configuration, Cumulus Linux OSPF, Cumulus Linux OSPF configuration, Cumulus Linux OSPF Neighbors, Cumulus Linux OSPF point-to-point configuration, Cumulus Linux OSPF Routes, Cumulus Linux routing, Cumulus Linux Spine-Leaf Architecture, Cumulus Linux Spine-Leaf Architecture with OSPF, Cumulus Linux Spine-Leaf design, Cumulus Linux vty, Cumulus Linux vtysh, Cumulus loopbak configuration, Cumulus management configuration, Cumulus OSPF configuration, Cumulus OSPF Neighbors, Cumulus OSPF point-to-point configuration, Cumulus OSPF Routes, Cumulus routing, Cumulus Spine-Leaf Architecture, Cumulus Spine-Leaf Architecture with OSPF, Cumulus Spine-Leaf design, Cumulus vty, Cumulus vtysh, Dell, Dell Networking, Dell Networking Cumulus Linux, Dell S4810, Dell S4810-ON, Dell S6000, Dell S6000-ON, Dell switches running Cumulus Linux, GNU Zebra, ifdown, ifup, ip link show, linux, Linux OSPF, OSPF, OSPF configuration, OSPF point-to-point configuration, Quagga, Quagga daemons, restarting the Quagga daemons, S4810, S4810-ON, S6000, S6000-ON, service quagga restart, Spine-Leaf, Spine-Leaf Architecture, Spine-Leaf Architecture with OSPF, Spine-Leaf design, swp, swp ports, VTY, vtysh, zebra
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Blocking Hackers From Accessing Your Switch via Telnet/SSH
It’s amazing how much rattling at the doors and attempted intrusions companies become accustomed to seeing on their networks. Here I show a simple way to block telnet/SSH access to your switch. First, you should never use telnet to manage … Continue reading
Posted in Dell Force10, Force10 Networks, Hacks, Labs, Network Security, Networking, Technology
Tagged access list, access lists, access-llists, block ssh, block telnet, block VTY access, Dell, Dell Force10, extended access list, extended access-lists, Force10 Networks, FTOS, hack, hacker, named access list, named access-lists, port 22, port 23, S0N, SSH, tcp, telnet, VTY, VTY access, VTY line, VTY lines
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