Hi,
ESXi offers some extented methods to capture network packets. Here are some examples.
First of all logon to your ESXi host by ssh.
To capture all traffic on a vmkernel interface use tcpdump-uw.
List all vmkernel interfaces
~ # esxcfg-vmknic -l
Interface
vmk0 .....
vmk1 .....
Continue reading ESXi: Capture Network packets on a vSwitch port or on a VM’s NIC
Hello,
some basic commands to handle a ruleset of iptables.
To dump all active iptables rules to the console rules use
root@debdev:~ # iptables-save
Continue reading Debian: Save current active iptables rules
Hi,
bash offers the ability to move a running foreground process into background.
An example 🙂 Listen with netcat at tcp port 80, this process to not exit and stays in foreground.
root@debdev:~# nc -l -t -p 80 -s 10.254.1.1
Now I want to do some other things in this console.
Continue reading Linux: Move a process from fore- to background
Hi,
its possible to catch all DNS host queries to just one IP Address. For example in an open WLAN to redirect a User to a authentication page before he can use the network.
Continue reading DNS: Configure DNS to return the same IP Address for all hostnames
Hi,
the best choice to setup a very tiny dhcp server on linux is the busybox udhcpd DHCP implemention.
root@debdev:~# apt-get install udhcpd
Continue reading Linux: Configure a tiny DHCP Server