CSLab Networking
DHCP Servers:
- danaos (subnet 147.102.3)
- scirouter (subnet 147.102.4)
Useful commands:
# view /etc/dhcpd.conf
: see and set statically assigned IPs (dhcp runs only on danaos, not on scirouter)
# /usr/local/share/munin/dhcpstatus/dhcpstatus_0.60/scripts/dhcpstatus
: Returns the DHCP status (@ danaos), see the number of available IPs
# nmap -sP 147.102.4.190/26
: See who is connected to the subnet
/etc/init.d/dhcp3-server status
: To see the status of the dhcp server ("restart" to restart it)
Allocate a static IP
- At
/etc/network/interface
add (under correct interface):
IP 147.102.4.149 Broadcast 147.102.4.191 Gateway 147.102.4.190 Netmask 255.255.255.192
Add the MAC address and IP at dhcpd.conf
as above
Add the domain name to DNS server
# vim /etc/bind/cslab.ece.ntua.gr.zone
: Find the ip and change the name on top Add entry and update serial on top of file
Reverse lookup
# vim 4.102.147.in-addr.arpa.zone
Find the ip and change the name on top- Add entry and update serial on top of file
# rndc reload
- To test:
# nslookup 147.102.4.149
- If something is added, e.g. URL:
# service bind9 restart
Last modified
10 months ago
Last modified on 01/10/24 13:53:02
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