Hi sir,
i want to make such programe which takes MAC(Ethernet) address of any host & give me its IP address.......
but i'm nt getting that how i can pass the MAC address to Frame........
Please give me an idea for making such program...
Thanks & regards
Krishna (3 Replies)
Hi
I need to write a bash shell script. I have two separate text files. One file contains a list of MAC addresses taken from a network scan, the other contains a list of MAC addresses for our currently-managed devices. How can I compare these two files, and output a list of addresses that have... (6 Replies)
Hi,
i need to replace the last octate in ipaddress with 0 using bash shell for one of my applicatiom.
googling i found the below link where they do the same thing but use long2 ip which i dont see in linux.
trim ip address octet - Stack Overflow
Plz can soemone guide how do i do this... (5 Replies)
Hi there
Im not quite sure how i can do this, but i am retrieving the mac address from boxes, which in some instances is arriving in its shortened format (i.e. dropping the leading zeros)... for example
0:3:BA:1:E:84
Im trying to figure out a way of converting the single character... (3 Replies)
Hi there
I lost connectivity to one of our remote systems and when I checked the messages log I found the following:
Aug 10 23:42:34 host xntpd: time reset (step) 1.681729 s
Aug 16 13:20:51 host ip: WARNING: node "mac address" is using our IP address x.x.x.x on aggr1
Aug 16 13:20:51 host... (9 Replies)
I am new to bash scripting. I want write a script that reads from the first argument file and run nslookup, then prints out each nslookup. Something like below:
File name = ip
8.8.8.8
8.8.4.4
Bash shell script: nslookup.sh
#!/bin/bash
for i in $1
do
nslookup $i
done
I... (7 Replies)
Hi Everybody,
Goal:
From my backup box on my local network, knowing the Wifi MAC address of my laptop, I would like to dynamically identify which ip address is attributed to my laptop.
The aim is to store this ip address in a local variable and that this information is retrieved by another... (11 Replies)
four interfaces with ifconfig
all interfaces have the same mac. If is not set for unique.
but it still works.
what difference does it make to have all macs the same or different? (4 Replies)
How would I write a value to a physical memory address?
I was able to read a physical memory address (for example, 0x400) using this line:
dd if=/dev/mem count=4 bs=1 skip=$(( 0x400 ))
But I get an error:
dd: 'standard input': cannot skip to specified offset
when I try to write using... (1 Reply)
Discussion started by: rabrandt
1 Replies
LEARN ABOUT DEBIAN
shorewall-exclusion
SHOREWALL-EXCLUSION(5) [FIXME: manual] SHOREWALL-EXCLUSION(5)NAME
exclusion - Exclude a set of hosts from a definition in a shorewall configuration file.
SYNOPSIS
!address-or-range[,address-or-range]...
!zone-name[,zone-name]...
DESCRIPTION
The first form of exclusion is used when you wish to exclude one or more addresses from a definition. An exclaimation point is followed by
a comma-separated list of addresses. The addresses may be single host addresses (e.g., 192.168.1.4) or they may be network addresses in
CIDR format (e.g., 192.168.1.0/24). If your kernel and iptables include iprange support, you may also specify ranges of ip addresses of the
form lowaddress-highaddress
No embedded whitespace is allowed.
Exclusion can appear after a list of addresses and/or address ranges. In that case, the final list of address is formed by taking the first
list and then removing the addresses defined in the exclusion.
Beginning in Shorewall 4.4.13, the second form of exclusion is allowed after all and any in the SOURCE and DEST columns of
/etc/shorewall/rules. It allows you to omit arbitrary zones from the list generated by those key words.
Warning
If you omit a sub-zone and there is an explicit or explicit CONTINUE policy, a connection to/from that zone can still be matched by the
rule generated for a parent zone.
For example:
/etc/shorewall/zones:
#ZONE TYPE
z1 ip
z2:z1 ip
...
/etc/shorewall/policy:
#SOURCE DEST POLICY
z1 net CONTINUE
z2 net REJECT
/etc/shorewall/rules:
#ACTION SOURCE DEST PROTO DEST
# PORT(S)
ACCEPT all!z2 net tcp 22
In this case, SSH connections from z2 to net will be accepted by the generated z1 to net ACCEPT rule.
In most contexts, ipset names can be used as an address-or-range. Beginning with Shorewall 4.4.14, ipset lists enclosed in +[...] may also
be included (see shorewall-ipsets[1] (5)). The semantics of these lists when used in an exclusion are as follows:
o !+[set1,set2,...setN] produces a packet match if the packet does not match at least one of the sets. In other words, it is like NOT
match set1 OR NOT match set2 ... OR NOT match setN.
o +[!set1,!set2,...!setN] produces a packet match if the packet does not match any of the sets. In other words, it is like NOT match set1
AND NOT match set2 ... AND NOT match setN.
EXAMPLES
Example 1 - All IPv4 addresses except 192.168.3.4
!192.168.3.4
Example 2 - All IPv4 addresses except the network 192.168.1.0/24 and the host 10.2.3.4
!192.168.1.0/24,10.1.3.4
Example 3 - All IPv4 addresses except the range 192.168.1.3-192.168.1.12 and the network 10.0.0.0/8
!192.168.1.3-192.168.1.12,10.0.0.0/8
Example 4 - The network 192.168.1.0/24 except hosts 192.168.1.3 and 192.168.1.9
192.168.1.0/24!192.168.1.3,192.168.1.9
Example 5 - All parent zones except loc
any!loc
FILES
/etc/shorewall/hosts
/etc/shorewall/masq
/etc/shorewall/rules
/etc/shorewall/tcrules
SEE ALSO shorewall(8), shorewall-accounting(5), shorewall-actions(5), shorewall-blacklist(5), shorewall-hosts(5), shorewall_interfaces(5),
shorewall-ipsets(5), shorewall-maclist(5), shorewall-masq(5), shorewall-nat(5), shorewall-netmap(5), shorewall-params(5),
shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5), shorewall-rtrules(5), shorewall-routestopped(5), shorewall-rules(5),
shorewall.conf(5), shorewall-secmarks(5), shorewall-tcclasses(5), shorewall-tcdevices(5), shorewall-tcrules(5), shorewall-tos(5),
shorewall-tunnels(5), shorewall-zones(5)NOTES
1. shorewall-ipsets
http://www.shorewall.net/manpages/shorewall-ipsets.html
[FIXME: source] 06/28/2012 SHOREWALL-EXCLUSION(5)