Changes between Initial Version and Version 1 of Networking

Timestamp:

01/10/24 13:53:02 (10 months ago)

Author:

ypap

Comment:

--

Networking

@@ +1 @@
+= 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`