9 More Discussions You Might Find Interesting
Guys, we have a sonicwall firewall set to control our bandwidth, but its does not allow any kind of monitoring, so i think of setting a *NIX firewall before it, whats your recommendation about it? which *nix software based firewall free and reliable enough to start with? (6 Replies)
Discussion started by: XP_2600
I am looking for a good firewall software to implement in medium/large office, with at least 150 users.
I was hopping you guys could help me on this one.
Regards, (4 Replies)
Discussion started by: andrevicente
I have put my windows machine behind my centos firewall server with just one NIC. At now, the windows machine can ping 22.214.171.124 but cannot resolve valid url (like www.google.com). I have set DNS for it as well. Can you please let me know what is the missing step?
Thank you (6 Replies)
Discussion started by: hadimotamedi
Is there a command line interface to the firewall? (4 Replies)
Discussion started by: jgt
How do configure firewall in aix.. similar to linux iptable.
k.sumathi. (3 Replies)
Discussion started by: sumathi.k
I am a newbee to firewall scripting. cannot understand how to write rules per host. in ip6tables.
anyone plz:( (2 Replies)
Discussion started by: xecutioner
how do i verify if my aix 4.x/5.x server have firewall installed on the os?
thanks in advance. (1 Reply)
Discussion started by: itik
Would it be possible to restrict access to internet pages in the following way?
IP = 126.96.36.199
Only pages from domains of the type "go.jp" and "ne.jp" are viewable. All others are not viewable or only partly viewable.
IP = 188.8.131.52
Regardless of the domain... (4 Replies)
Discussion started by: mntamago
Just out of curiosity, I see a lot of people here use Linux IPTables as their firewall.
Anyone here use something else like OpenBSD PF or *BSD IPF, IPFW?
I'm quite fond of OpenBSD and their Packet Filters. I find their syntax much easier to manage and from my personal experience, I find them... (5 Replies)
Discussion started by: tarballed
Firewall mark classifier in tc(8) Linux Firewall mark classifier in tc(8)
fw - fwmark traffic control filter
tc filter ... fw [ classid CLASSID ] [ action ACTION_SPEC ]
the fw filter allows to classify packets based on a previously set fwmark by iptables. If it is identical to the filter's handle, the fil-
ter matches. iptables allows to mark single packets with the MARK target, or whole connections using CONNMARK. The benefit of using this
filter instead of doing the heavy-lifting with tc itself is that on one hand it might be convenient to keep packet filtering and classifi-
cation in one place, possibly having to match a packet just once, and on the other users familiar with iptables but not tc will have a less
hard time adding QoS to their setups.
Push matching packets to the class identified by CLASSID.
Apply an action from the generic actions framework on matching packets.
Take e.g. the following tc filter statement:
tc filter add ... handle 6 fw classid 1:1
will match if the packet's fwmark value is 6. This is a sample iptables statement marking packets coming in on eth0:
iptables -t mangle -A PREROUTING -i eth0 -j MARK --set-mark 6
tc(8), iptables(8), iptables-extensions(8)
iproute2 21 Oct 2015 Firewall mark classifier in tc(8)