Hi All

Added this script in custom-rules.conf and it seems to work well:
-----
ipset create -exist udp_sip_hosts hash:net
ipset flush udp_sip_hosts
ip_addresses=$(grep "host" /mnt/kd/asterisk/sip_peers.conf | sed "s/host=//")
echo "$ip_addresses" | sed -n -r -e "s/^([0-9][0-9./]+)([[:space:]].*|)$/add 
-exist udp_sip_hosts \1/p" | ipset restore
iptables -A EXT_INPUT_CHAIN -m set --match-set udp_sip_hosts src -p udp --dport 
5060 -j ACCEPT
-----

Regards 
Michael Knill 



On 3/1/2023, 2:03 pm, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com 
<mailto:li...@lonnie.abelbeck.com>> wrote:


Michael,


Controlling the client is not ideal.


Not sure if it is worth the trouble, but rather than removing the IP address, 
you could mark it with a unique prefix, like:


#block#1.2.3.4


Then add another sed one-liner for a different set-name that gets added in a 
new unique chain which gets added as -I to the INPUT chain, like the adaptive 
ban plugin does. This order will make a -j DROP for udp 5060 act before the 
conntrack states.


Lonnie


> On Jan 2, 2023, at 6:16 PM, Michael Knill <michael.kn...@ipcsolutions.com.au 
> <mailto:michael.kn...@ipcsolutions.com.au>> wrote:
> 
> Thanks Lonnie. Sorry you had to roll your sleeves up. :-)¡
> 
> Yes that makes perfect sense and it did what you said when tested. I really 
> should have known this but it caught me out. I did stop SIP traffic going out 
> but it was the remote peer's OPTIONS pings that was holding it up.
> We will test parsing sip_peers.conf looking at host= to pick up all the IP 
> Addresses on the system and add them to the ipset.
> 
> One thing I was thinking is that if we are sending OPTIONS pings to all these 
> peers from the softswitch then theoretically we should not need to create any 
> firewall rules as the session will already be set up in conntrack. I tested 
> it by turning off OPTIONS pings at both ends, waiting for conntrack to time 
> out and then turn on OPTIONS pings at the peer end. It did not work until I 
> turned on OPTIONS pings at the softswitch end whereby I could make and 
> receive calls again.
> 
> Is this a bit risky do you think? Can you think of any breaking scenarios?
> 
> Regards 
> Michael Knill 
> 
> 
> 
> On 3/1/2023, 9:07 am, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com 
> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
> <mailto:li...@lonnie.abelbeck.com>>> wrote:
> 
> 
> Hi Michael,
> 
> 
> I rolled up my sleeves, and gave this a test in my lab:
> 
> 
> -- snip /etc/arno-iptables-firewall/custom-rules --
> 
> 
> ipset_ext_input_allow()
> {
> local proto="$1" port="$2" set="$3" file="$4"
> 
> 
> if [ ! -f "$file" ]; then
> echo "[CUSTOM RULE] ipset_ext_input_allow: File not found: $file"
> return
> fi
> 
> 
> echo "[CUSTOM RULE] IPSet Pass EXT->Local for Proto: $proto, Port: $port, 
> Set: $set, IPsetFile: $file"
> 
> 
> ipset create -exist $set hash:net
> ipset flush $set
> 
> 
> sed -n -r -e "s/^([0-9][0-9./]+)([[:space:]].*|)$/add -exist ${set} \1/p" 
> "$file" | ipset restore
> 
> 
> ip4tables -A EXT_INPUT_CHAIN -m set --match-set $set src -p $proto --dport 
> $port -j ACCEPT
> }
> ipset_ext_input_allow udp 5060 udp_sip_hosts /tmp/sip-whitelist.netset
> 
> 
> --
> 
> 
> -- /tmp/sip-whitelist.netset --
> ##
> 1.2.3.4 #test
> #10.10.50.1
> 10.10.50.55
> #10.10.0.0/16
> 
> 
> --
> 
> 
> It worked as expected. Restarting the firewall "arno-iptables-firewall 
> restart" applies the current IPv4 .netset file.
> 
> 
> 
> 
>> If I then remove the address and restart the firewall, the address is 
>> removed from the list (ipset list confirms this) but the address is still 
>> open in the firewall. I cannot remove it unless I reboot the system.
> 
> 
> What you are seeing is the iptables conntrack state table, eventually the UDP 
> state will expire after 120 seconds (unless traffic resets the state)
> 
> 
> Source Port (#'s) Destination Port Protocol Packets Bytes TTL
> 10.10.50.1 5060 10.10.50.64 5060 UDP 24 13856 1:29
> 
> 
> After the TTL counts down to 0 then the conntrack state disappears. The 
> iptables conntrack state table makes the firewall much more efficient. This 
> behavior has always existed.
> 
> 
> So in your testing, if you wait 2 minutes after you remove an IP and apply 
> the change, the IP will be blocked for UDP 5060 traffic.
> 
> 
> If you are getting a constant stream of UDP 5060 traffic from that IP then 
> you would need to take additional measures to block further traffic. For 
> example, if you allowed a remote SIP endpoint to register more often than 120 
> seconds, removing the IP from the "allowed" ipset would not "block" it until 
> the conntrack state disappears.
> 
> 
> Make sense?
> 
> 
> Lonnie
> 
> 
> 
> 
> 
> 
>> On Jan 2, 2023, at 2:26 PM, Michael Knill <michael.kn...@ipcsolutions.com.au 
>> <mailto:michael.kn...@ipcsolutions.com.au> 
>> <mailto:michael.kn...@ipcsolutions.com.au 
>> <mailto:michael.kn...@ipcsolutions.com.au>>> wrote:
>> 
>> Hi Lonnie
>> 
>> Thanks for this. Unfortunately I still need to reboot the system for it to 
>> reread the netset rules if I remove an ipset entry.
>> Here is my custom-rules.conf:
>> --------
>> ipset create -exist udp_sip_hosts hash:net
>> ipset flush udp_sip_hosts
>> ipset add -exist udp_sip_hosts <my ip address added here>
>> iptables -A EXT_INPUT_CHAIN -m set --match-set udp_sip_hosts src -p udp 
>> --dport 5060 -j ACCEPT
>> --------
>> 
>> If I add another IP Address to the list as below and restart the firewall it 
>> works fine and I see it when I do an ipset list:
>> ipset add -exist udp_sip_hosts <1st ip address>
>> ipset add -exist udp_sip_hosts <2nd ip address>
>> 
>> If I then remove the address and restart the firewall, the address is 
>> removed from the list (ipset list confirms this) but the address is still 
>> open in the firewall. I cannot remove it unless I reboot the system.
>> Obviously not workable I'm afraid.
>> 
>> Regards 
>> Michael Knill 
>> 
>> 
>> 
>> On 3/1/2023, 3:22 am, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com 
>> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
>> <mailto:li...@lonnie.abelbeck.com>> <mailto:li...@lonnie.abelbeck.com 
>> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
>> <mailto:li...@lonnie.abelbeck.com>>>> wrote:
>> 
>> 
>> Hi Michael,
>> 
>> 
>> Referring to the "apply_ipset_netset()" function (here [1])
>> 
>> 
>> Add "-exist" to the "create" and "add" (man-page [2]) commands.
>> 
>> 
>> Note that you can create the ipset from a text file within the 
>> /etc/arno-iptables-firewall/custom-rules script. Edit your text file and 
>> reload the firewall.
>> 
>> 
>> Using "ipset create -exist ..." will not fail if the ipset already exists. 
>> "ipset flush ..." will clear any pre-existing ipset.
>> 
>> 
>> Tip -> I would probably use "hash:net" instead of "hash:ip" so you could use 
>> CIDRs if you wanted.
>> 
>> 
>> custom-rules script snippet
>> --
>> ipset create -exist udp_sip_hosts hash:net
>> ipset flush udp_sip_hosts
>> 
>> 
>> ## either a one-liner from a text file "sip-whitelist.netset"
>> sed -n -r -e "s/^([0-9][0-9./]+)([[:space:]].*|)$/add -exist udp_sip_hosts 
>> \1/p" sip-whitelist.netset | ipset restore
>> 
>> 
>> ## Or, loop getting IPv4s from a text file "sip-whitelist.netset"
>> ipset add -exist udp_sip_hosts <IP Address>
>> ## done-loop
>> 
>> 
>> iptables -A EXT_INPUT_CHAIN -m set --match-set udp_sip_hosts src -p udp 
>> --dport 5060 -j ACCEPT
>> --
>> 
>> 
>> Lonnie
>> 
>> 
>> [1] 
>> https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275
>>  
>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275>
>>  
>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275>
>>  
>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&gt;>
>>  
>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275>
>>  
>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&gt;>
>>  
>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&gt;>
>>  
>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&amp;gt;&gt;>
>> 
>> 
>> [2] https://ipset.netfilter.org/ipset.man.html 
>> <https://ipset.netfilter.org/ipset.man.html> 
>> <https://ipset.netfilter.org/ipset.man.html> 
>> <https://ipset.netfilter.org/ipset.man.html&gt;> 
>> <https://ipset.netfilter.org/ipset.man.html> 
>> <https://ipset.netfilter.org/ipset.man.html&gt;> 
>> <https://ipset.netfilter.org/ipset.man.html&gt;> 
>> <https://ipset.netfilter.org/ipset.man.html&amp;gt;&gt;>
>> 
>> 
>> 
>> 
>>>> On Jan 1, 2023, at 11:44 PM, Michael Knill 
>>>> <michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au>> 
>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au>>>> wrote:
>>> 
>>> Hi All
>>> Merry Christmas and Happy New Year.
>>> 
>>> Just rejuvenating this thread as I am building our new softswitch and 
>>> playing with ipset as you offered below.
>>> We have done the following:
>>> 
>>> Using CLI:
>>> ipset create udp_sip_hosts hash:ip
>>> ipset add udp_sip_hosts <IP Address>
>>> 
>>> In custom-rules.conf
>>> iptables -A EXT_INPUT_CHAIN -m set --match-set udp_sip_hosts src -p udp 
>>> --dport 5060 -j ACCEPT
>>> 
>>> It all seems to work fine but I obviously am an iptables noob as I have no 
>>> idea what to do when I make changes to the ipset as it does not change even 
>>> after a firewall restart.
>>> I'm sure there is something I need to do which will get iptables to reread 
>>> the ipset?
>>> 
>>> Thanks guys.
>>> 
>>> Regards 
>>> Michael Knill 
>>> 
>>> 
>>> 
>>>> On 27/9/2021, 10:54 am, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com>> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com>>> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com>> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com>>>>> wrote:
>>> 
>>> 
>>> Michael,
>>> 
>>> 
>>> The /mnt/kd/arno-iptables-firewall/custom-rules is a basic shell script, so 
>>> parsing sip.conf using 'sed' or such should be reasonably straightforward.
>>> 
>>> 
>>> BTW, for extra credit, if you combined all the allowed SIP IPs into an 
>>> ipset (ex. udp_sip_hosts), you can very efficiently match all of them with 
>>> only one rule:
>>> --
>>> iptables -A EXT_INPUT_CHAIN -m set --match-set udp_sip_hosts src -p udp 
>>> --dport 5060 -j ACCEPT
>>> --
>>> That would allow you to rebuild only the "udp_sip_hosts" ipset when the 
>>> sip.conf got changed, without rebuilding the firewall. Though requires some 
>>> 'ipset' command knowledge, though not complex at all.
>>> 
>>> 
>>> Example 'ipset' usage in AstLinux:
>>> https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&gt;>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&gt;>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&gt;>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&amp;gt;&gt;>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&gt;>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&gt;>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&amp;gt;&gt;>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&gt;>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&amp;gt;&gt;>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&amp;gt;&gt;>
>>>  
>>> <https://github.com/astlinux-project/astlinux/blob/d95ba9c3914b135da4440cb95f32af61a41d4650/package/arnofw/aif/bin/arno-iptables-firewall#L4275&amp;amp;gt;&amp;gt;&gt;>
>>> 
>>> 
>>> If you only use IPv4 a lot of the example can be simplified.
>>> 
>>> 
>>> Lonnie
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>>> On Sep 26, 2021, at 7:17 PM, Michael Knill 
>>>> <michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au>> 
>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au>>> 
>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au>> 
>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>> <mailto:michael.kn...@ipcsolutions.com.au>>>>> wrote:
>>>> 
>>>> Thanks Lonnie.
>>>> 
>>>> Actually now that I think about it, is there any reason why the custom 
>>>> rule could not parse sip.conf for host=<IP Address> and open up all Public 
>>>> IP's?
>>>> It would mean that you would need to restart the firewall every time you 
>>>> modified sip.conf but I'm sure we could build this into our portal very 
>>>> simply.
>>>> 
>>>> Regards
>>>> Michael Knill
>>>> 
>>>> On 27/9/21, 9:47 am, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com>> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com>>> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com>> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com> <mailto:li...@lonnie.abelbeck.com 
>>>> <mailto:li...@lonnie.abelbeck.com>>>>> wrote:
>>>> 
>>>> Hi Michael,
>>>> 
>>>> With 300 rules and the same across all your boxes, I would use 
>>>> /mnt/kd/arno-iptables-firewall/custom-rules to define these.
>>>> 
>>>> Very similar to the deny_ext_local() example I posted recently, but the 
>>>> reverse ... pass_ext_local() using -j ACCEPT
>>>> 
>>>> Without testing, something like ...
>>>> --
>>>> pass_ext_local()
>>>> {
>>>> local proto="$1" host="$2" port="$3"
>>>> 
>>>> echo "[CUSTOM RULE] Pass EXT->Local for Proto: $proto, Host: $host, Port: 
>>>> $port"
>>>> iptables -A EXT_INPUT_CHAIN -s $host -p $proto --dport $port -j ACCEPT
>>>> }
>>>> ## uncomment to enable ##
>>>> #pass_ext_local udp 1.2.3.4 5060
>>>> #pass_ext_local tcp 1.2.3.0/24 5061
>>>> --
>>>> 
>>>> If you only use udp/5060, you could simplify things, maybe only one "echo" 
>>>> statement and a variable defining all 300 IPs. Generic shell scripting.
>>>> 
>>>> Again untested ...
>>>> --
>>>> pass_ext_local_udp_sip()
>>>> {
>>>> local host proto="udp" port="5060" IFS
>>>> local sip_hosts="1.2.3.4 1.22.33.40 1.22.33.41 1.22.33.42 1.22.33.43 
>>>> 1.22.33.44 1.22.33.45 1.22.33.46 1.22.33.47 1.22.33.48"
>>>> 
>>>> echo "[CUSTOM RULE] Pass EXT->Local for UDP/5060 SIP Hosts"
>>>> unset IFS
>>>> for host in $sip_hosts; do
>>>> iptables -A EXT_INPUT_CHAIN -s $host -p $proto --dport $port -j ACCEPT
>>>> done
>>>> }
>>>> pass_ext_local_udp_sip
>>>> --
>>>> 
>>>> Alternatively, you could define the sip_hosts variable with a file if 
>>>> desired.
>>>> 
>>>> Lonnie
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>>> On Sep 26, 2021, at 5:32 PM, Michael Knill 
>>>>> <michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au>> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au>>> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au>> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au>>>>> wrote:
>>>>> 
>>>>> Hi Group
>>>>> 
>>>>> I'm looking to have a large number of firewall entries in Astlinux e.g. 
>>>>> 300. They would be all the same e.g. I want to open port 5060 from 
>>>>> multiple sites.
>>>>> Is there an easier/neater way to do this other than lots of firewall 
>>>>> entries in the Firewall Tab?
>>>>> 
>>>>> Regards
>>>>> 
>>>>> Michael Knill
>>>>> Managing Director
>>>>> 
>>>>> D: +61 2 6189 1360
>>>>> P: +61 2 6140 4656
>>>>> E: michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au>> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au>>> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au>> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au> 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au 
>>>>> <mailto:michael.kn...@ipcsolutions.com.au>>>>
>>>>> W: ipcsolutions.com.au
>>>>> 
>>>>> <image001.png>
>>>>> Smarter Business Communications
>>>>> 
>>>>> _______________________________________________
>>>>> Astlinux-users mailing list
>>>>> Astlinux-users@lists.sourceforge.net 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net>> 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net>>> 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net>> 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>>> <mailto:Astlinux-users@lists.sourceforge.net>>>>
>>>>> https://lists.sourceforge.net/lists/listinfo/astlinux-users 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;amp;gt;&amp;gt;&gt;>
>>>>> 
>>>>> Donations to support AstLinux are graciously accepted via PayPal to 
>>>>> pay...@krisk.org <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>>> <mailto:pay...@krisk.org>> <mailto:pay...@krisk.org 
>>>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>>> <mailto:pay...@krisk.org>>> <mailto:pay...@krisk.org 
>>>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>>> <mailto:pay...@krisk.org>> <mailto:pay...@krisk.org 
>>>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>>> <mailto:pay...@krisk.org>>>>.
>>>> 
>>>> 
>>>> 
>>>> _______________________________________________
>>>> Astlinux-users mailing list
>>>> Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net>> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net>>> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net>> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net>>>>
>>>> https://lists.sourceforge.net/lists/listinfo/astlinux-users 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;amp;gt;&amp;gt;&gt;>
>>>> 
>>>> Donations to support AstLinux are graciously accepted via PayPal to 
>>>> pay...@krisk.org <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org>> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org>>> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org>> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org>>>>.
>>>> 
>>>> 
>>>> _______________________________________________
>>>> Astlinux-users mailing list
>>>> Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net>> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net>>> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net>> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>>> <mailto:Astlinux-users@lists.sourceforge.net>>>>
>>>> https://lists.sourceforge.net/lists/listinfo/astlinux-users 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;amp;gt;&amp;gt;&gt;>
>>>> 
>>>> Donations to support AstLinux are graciously accepted via PayPal to 
>>>> pay...@krisk.org <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org>> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org>>> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org>> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>>> <mailto:pay...@krisk.org>>>>.
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Astlinux-users mailing list
>>> Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net>> 
>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net>>> 
>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net>> 
>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net>>>>
>>> https://lists.sourceforge.net/lists/listinfo/astlinux-users 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;amp;gt;&amp;gt;&gt;>
>>> 
>>> 
>>> Donations to support AstLinux are graciously accepted via PayPal to 
>>> pay...@krisk.org <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>> <mailto:pay...@krisk.org>> <mailto:pay...@krisk.org 
>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>> <mailto:pay...@krisk.org>>> <mailto:pay...@krisk.org 
>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>> <mailto:pay...@krisk.org>> <mailto:pay...@krisk.org 
>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>> <mailto:pay...@krisk.org>>>>.
>>> 
>>> 
>>> _______________________________________________
>>> Astlinux-users mailing list
>>> Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net>> 
>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net> 
>>> <mailto:Astlinux-users@lists.sourceforge.net 
>>> <mailto:Astlinux-users@lists.sourceforge.net>>>
>>> https://lists.sourceforge.net/lists/listinfo/astlinux-users 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;>
>>> 
>>> Donations to support AstLinux are graciously accepted via PayPal to 
>>> pay...@krisk.org <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>> <mailto:pay...@krisk.org>> <mailto:pay...@krisk.org 
>>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>>> <mailto:pay...@krisk.org>>>.
>> 
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> Astlinux-users mailing list
>> Astlinux-users@lists.sourceforge.net 
>> <mailto:Astlinux-users@lists.sourceforge.net> 
>> <mailto:Astlinux-users@lists.sourceforge.net 
>> <mailto:Astlinux-users@lists.sourceforge.net>> 
>> <mailto:Astlinux-users@lists.sourceforge.net 
>> <mailto:Astlinux-users@lists.sourceforge.net> 
>> <mailto:Astlinux-users@lists.sourceforge.net 
>> <mailto:Astlinux-users@lists.sourceforge.net>>>
>> https://lists.sourceforge.net/lists/listinfo/astlinux-users 
>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;> 
>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&amp;gt;&gt;>
>> 
>> 
>> Donations to support AstLinux are graciously accepted via PayPal to 
>> pay...@krisk.org <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>> <mailto:pay...@krisk.org>> <mailto:pay...@krisk.org 
>> <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>> <mailto:pay...@krisk.org>>>.
>> 
>> 
>> _______________________________________________
>> Astlinux-users mailing list
>> Astlinux-users@lists.sourceforge.net 
>> <mailto:Astlinux-users@lists.sourceforge.net> 
>> <mailto:Astlinux-users@lists.sourceforge.net 
>> <mailto:Astlinux-users@lists.sourceforge.net>>
>> https://lists.sourceforge.net/lists/listinfo/astlinux-users 
>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
>> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;>
>> 
>> Donations to support AstLinux are graciously accepted via PayPal to 
>> pay...@krisk.org <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
>> <mailto:pay...@krisk.org>>.
> 
> 
> 
> 
> 
> 
> _______________________________________________
> Astlinux-users mailing list
> Astlinux-users@lists.sourceforge.net 
> <mailto:Astlinux-users@lists.sourceforge.net> 
> <mailto:Astlinux-users@lists.sourceforge.net 
> <mailto:Astlinux-users@lists.sourceforge.net>>
> https://lists.sourceforge.net/lists/listinfo/astlinux-users 
> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
> <https://lists.sourceforge.net/lists/listinfo/astlinux-users> 
> <https://lists.sourceforge.net/lists/listinfo/astlinux-users&gt;>
> 
> 
> Donations to support AstLinux are graciously accepted via PayPal to 
> pay...@krisk.org <mailto:pay...@krisk.org> <mailto:pay...@krisk.org 
> <mailto:pay...@krisk.org>>.
> 
> 
> _______________________________________________
> Astlinux-users mailing list
> Astlinux-users@lists.sourceforge.net 
> <mailto:Astlinux-users@lists.sourceforge.net>
> https://lists.sourceforge.net/lists/listinfo/astlinux-users 
> <https://lists.sourceforge.net/lists/listinfo/astlinux-users>
> 
> Donations to support AstLinux are graciously accepted via PayPal to 
> pay...@krisk.org <mailto:pay...@krisk.org>.




_______________________________________________
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<mailto:Astlinux-users@lists.sourceforge.net>
https://lists.sourceforge.net/lists/listinfo/astlinux-users 
<https://lists.sourceforge.net/lists/listinfo/astlinux-users>


Donations to support AstLinux are graciously accepted via PayPal to 
pay...@krisk.org <mailto:pay...@krisk.org>.


_______________________________________________
Astlinux-users mailing list
Astlinux-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/astlinux-users

Donations to support AstLinux are graciously accepted via PayPal to 
pay...@krisk.org.

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