Print all Host on local network

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# 1  
Old 07-31-2012
Print all Host on local network

Hello guys,

I would like to develop a script which takes a host name as argument and displays a message whether the host is on the local network or not. How can I accomplish that? Is there a file or command that I can use to list all host on the local network? Smilie
# 2  
Old 07-31-2012
you can ping the host can compare it to you ip. If is is different than it is not local.
# 3  
Old 07-31-2012
But this involves IP addresses, or is that also possible with a string host name i.e "UNIX01"?
# 4  
Old 07-31-2012
This pertains to linux machines, may be different on others:
arp -a dumps your machine's "Address Resolution Protocol" cache, i.e. your active connections.
ping -b pings the entire local network BUT machines have to be setup to answer.

Last edited by RudiC; 07-31-2012 at 07:11 AM..
# 5  
Old 07-31-2012

You can try this;

$ for ip in `echo '[1+pd254>aq]sa0 1-lax' | dc`; do ping -c 1 10.176.128.$ip>/dev/null; [ $? -eq 0 ] && echo "10.176.128.$ip UP" ; nslookup 10.176.128.$ip || : ; done

Where the XXX.XXX.XXX is your first three octets.



Last edited by gull04; 07-31-2012 at 07:32 AM.. Reason: Typo
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