7
iptables shows Usage: /sbin/modprobe-bin [closed]view story

http://stackoverflow.com – After I execute iptables, it shows Usage: /sbin/modprobe-bin [-v] [-V] [-C config-file] [-n] [-i] [-q] [-o <modname /sbin/modprobe-bin -r [-n] [-i] [-v] <modulename> ... /sbin/modprobe-bin -l -t <dirname> [ -a <modulename> ...] Usage: /sbin/modprobe-bin [-v] [-V] [-C config-file] [-n] [-i] [-q] [-o <modname /sbin/modprobe-bin -r [-n] [-i] [-v] <modulename> ... Afte (HowTos)

7
One host unavailable over (Open)VPNview story

http://serverfault.com – I have an interesting issue with OpenVPN Ubuntu 12.04. I've been running an OPenVPN box for some time now. (HowTos)

5
Have iptables send an email on DROPview story

http://serverfault.com – I'd like to invoke sending an e-mail (or running a particular script, if that would be possible) when a certain iptables DROP rule is being run. (For instance, when I'm blocking an IP after 5 failed SSH logins, I'd like to run mail -s "SSH Blocked" [email protected] or something similar. Is there a way to directly have iptables execute this? (HowTos)

5
Can IP tables allow specific DNS queries based on domain name?view story

http://serverfault.com – I have iptables blocking all UDP traffic at the moment, however I want to allow only certain DNS queries to get through. Let's use google.com as an example. I am trying to use string matching to find the domain name in the request, and allow it. (HowTos)

5
How to use iptables on linux make PHP outgoing connections through a proxy?view story

http://serverfault.com – I write a web based proxy by PHP+curl, on my network some site need through proxy, if I use the CURLOPT_PROXY setting, it has some redirects, so will return 302 error, if add CURLOPT_FOLLOWLOCATION to 1, the windows will jump to other, so can't show in my ifream, is there someway to set iptables make php outgoing connections through proxy? (HowTos)

5
Can iptables allow DNS queries only for a certain domain name?view story

http://stackoverflow.com – I have iptables blocking all UDP traffic at the moment, however I want to allow only certain DNS queries to get through. Let's use google.com as an example. I am trying to use string matching to find the domain name in the request, and allow it. This is what I came up with. (HowTos)

5
idemptables: idempotent wrapper for iptablesview story

https://bbs.archlinux.org – @ewallerIt's fair if you think about it... if you poke holes in my firewall, I poke holes in you.I suspect that there's a "in Soviet Russia" joke in there somewhere. Xyne https://bbs.archlinux.org/profile.php?id=18138 2012-12-28T00:35:23Z (HowTos)

5
CentOS, two nics eth0 eth1 with different subnets aren't reachable outside VLAN/subnetview story

http://serverfault.com – I am having an issue with a CentOS 6.3 box. We have two NICs (eth0 and eth1) in the server which each have an ip from a different subnet assigned, let's say eth0:192.168.1.2/24 (gateway 192.168.1.1) and eth1:192.168.2.2/24 (gateway 192.168.2.1). (HowTos)

5
Filtering incoming Strongswan VPN packets with iptablesview story

http://serverfault.com – I am using a Strongswan VPN server on a Debian Squeeze machine. The incoming VPN clients get an IP of the 192.168.99.0/24 subnet. As I am using this VPN mainly to have encryption when using non-encrypted WLANs I am doing a source NAT into the internet using iptables. (HowTos)

5
Forward public port to localhostview story

http://serverfault.com – I have a process running on my Ubuntu 12.04 server that insists on binding to a public IP address. I only want it accessible from localhost, and NOT the outside world. I've been trying to work out a way to forward 1.2.3.4:8888 to 127.0.0.1:8888. I saw something about iptables not wanting to forward connections to loopback, and I haven't been able to make it work with xinetd either. (HowTos)