Hello, please can you help and explain me.
I have two servers. Both are RHEL6.
I use the first one like router and the second one for apache.
Router forwards 80 port on the second server and I can open that from the internet (mysite.com, for example). But I can not open mysite.com if i try to open that from the local network (Clients).
As I know i have to add NAT Loopback rules in iptables but I even have no ideas which one rules.
Please, help me ...
If it is important, i use MASQUERADE, bc my external IP is dynamic.
Now my iptables looks like that:
Hello Guys,
I have a debian machine that work as a firewall (iptables + squid 2.6) with two physical interfaces: eth0 (public interface) and eth1 (internal interface LAN). I have created an alias eth1:1 in order to have two subnets on same physical interface:
cat/etc/network/interfaces
auto... (0 Replies)
Currently,i use Fedora 10 and get a follow trouble :
My network:
route(10.11.10.2/24)----eth0----(10.11.10.105/24)Fedora10(172.16.239.1/24)----vmnet0----(172.16.239.2/24)Virtual Machine XP2.
I used : Vmware 6.5.1,Virtual Machine : Window XP SP2.
, iptable 1.4.1.1
I set up static ip... (2 Replies)
Hi Experts;
I want to find the right iptables commands combination to address the following need:
- NEs are NATed thru the linux box (using iptables) towards the WAN cloud, where the NTP servers are situated.
- In order to achieve redundancy, the NTP Servers are in a load balancing cluster... (0 Replies)
Hello, the Nat and the forward worked on my debian server up to the reboot of machines.
The following rules*:
/sbin/iptables -t nat -A PREROUTING -p tcp -i eth2 -d xxx.xxx.xxx.xxx --dport 29070 -j DNAT --to-destination 10.0.1.7:29070
/sbin/iptables -A FORWARD -p tcp -i eth2 -o eth0 -d... (0 Replies)
Good morning,
I'm a newbie of iptables and as far as I've seen on tutorials on the Internet it seems that both prerouting and postrouting NAT chains are undergone both by a packet that goes from an internal LAN to the Internet and of a one that goes in the opposite direction (from the Internet to... (0 Replies)
Hi, I am learning IPTables have this question.
My server is behind a firewall that does a PAT & NAT to the LAN address.
Internet IP: 68.1.1.23
Port: 10022
Server LAN IP: 10.1.1.23
port: 22
Allowed Internet IPs: 131.1.1.23, 132.1.1.23
I want to allow a set of IPs are to be able to... (1 Reply)
Hi all,
I have a following situation:
- I want certain source IPs to be natted to a different destination IP and Port. Following is how I am achieving it:
/usr/local/sbin/iptables -t nat -A PREROUTING -p tcp -s 192.168.10.12
--dport 1500 -j DNAT --to-destination 192.168.10.20:2000
... (3 Replies)
Hello,
Recently I discovered an issue with packet routing in the latest Android releases (4.4+ KitKat & Lollipop).
It seems that the problem Android specific, but essentially it comes from the Linux kernel.
I already filed a bug report to Google. You can see the details by searching for... (0 Replies)
Hi guys
I'm running on debian on a small embedded system. I have a ppp interface that is connected to the internet (and works). My unit also has wifi access point (which works and I can connect to it).
I want to allow connections to the wifi to be able to use the internet from ppp0... (1 Reply)
good day good people
hi
first to tell that firewall and vpn is working as expected, but I notice something strange.
I have host system 11.11.11.11(local ip) firewall is blocking everything except port to vpn.
I have vpn on virtualized system 22.22.22.22 (CentOS both host and virtual). ... (0 Replies)
Discussion started by: end
0 Replies
LEARN ABOUT DEBIAN
shorewall6-exclusion
SHOREWALL6-EXCLUSIO(5) [FIXME: manual] SHOREWALL6-EXCLUSIO(5)NAME
exclusion - Exclude a set of hosts from a definition in a shorewall6 configuration file.
SYNOPSIS
!address-or-range[,address-or-range]...
!zone-name[,zone-name]...
DESCRIPTION
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., fe80::2a0:ccff:fedb:31c4) or they may be network addresses in CIDR
format (e.g., fe80::2a0:ccff:fedb:31c4/64). If your kernel and ip6tables 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/shorewall6/zones:
#ZONE TYPE
z1 ip
z2:z1 ip
...
/etc/shorewall6/policy:
#SOURCE DEST POLICY
z1 net CONTINUE
z2 net REJECT
/etc/shorewall6/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.
FILES
/etc/shorewall6/hosts
/etc/shorewall6/masq
/etc/shorewall6/rules
/etc/shorewall6/tcrules
SEE ALSO shorewall6(8), shorewall6-accounting(5), shorewall6-actions(5), shorewall6-blacklist(5), shorewall6-hosts(5), shorewall6-interfaces(5),
shorewall6-maclist(5), shoewall6-netmap(5),shorewall6-params(5), shorewall6-policy(5), shorewall6-providers(5), shorewall6-rtrules(5),
shorewall6-routestopped(5), shorewall6-rules(5), shorewall6.conf(5), shorewall6-secmarks(5), shorewall6-tcclasses(5),
shorewall6-tcdevices(5), shorewall6-tcrules(5), shorewall6-tos(5), shorewall6-tunnels(5), shorewall-zones(5)
[FIXME: source] 06/28/2012 SHOREWALL6-EXCLUSIO(5)