IPv6 firewall on Linux router
Syn Romana asked: I have IPv6 tunnel (he.net) on my NAT router. I also have a simple firewall and routing setup to allow hosts behind the router to use IPv6 …
Issue insulating docker containers
Ricardo Mendes asked: I have a question, I have the following iptables config: [[email protected] ~]# iptables -L INPUT –line-numbers -n Chain INPUT (policy DROP) num target prot opt source destination …
Why does firewall-cmd throws error "ALREADY_ENABLED" but is the port not listed when calling firewall-cmd –list-ports?
user007 asked: I am trying to use firewall-cmd to add 443 to my allowed ports. Unfortunately this throws error ALREADY_ENABLED: 443:tcp. But when I use firewall-cmd –list-ports it does not …
Firewalld kills iptables
Kandrat asked: I have centos7 with installed firewalld and fail2ban. When i’m start firewalld(service firewalld start) it kills iptables (and starting iptables kills runing firewalld). Can i remove iptables and …
Ansible open port on iptables
Farrukh Sadykov asked: Currently I am changing the port for remote machine. I also have to allow the firewall rules on Centos 6.9. The folling is my command to open …
Forward port 514 to 5514 only from specific source ip with firewalld
willemdh asked: I’ve been trying to find a way to forward traffic from a specific ip, eg 10.17.1.3 on port 514 to port 5514 with firewalld on CentOS This works: …
iptables TRACE No chain/target/match by that name
pablochacin asked: I’m debugging the iptables for a kvm VM running a Buildroot image.When I try to set the following TRACE rule I get the error iptables: No chain/target/match by …
CentOS 7 iptables output does match output of firewall-cmd
Aren Tahmasian asked: Output of iptables -L -v -n does not match firewall-cmd –list-all-zones. Specifically, I’m looking for the forwarding rules I have in place for two virtual machines. They …
Auto-trigger captive portal agreement page display
Jason Burgett asked: I have a WiFi hotspot setup using Hostapd and Dnsmasq. Everything works great, but I’m trying to trigger the sort of Terms and Conditions page you might …
Route internet traffic through one nic and local traffic through a second nic
Matt Schramm asked: I am trying to route traffic through a specific interface based on its destination. OS is CentOS 7. I am setting up a mini MPI farm where …