This is a discussion on iptables, and allowing hosting through on captive portal ? within the Linux Networking forums, part of the Linux Forums category; Hi, I'm using nocatsplash which is setting up iptables , and routing authorized users through to nocat. Now it its ...
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Hi, I'm using nocatsplash which is setting up iptables , and routing
authorized users through to nocat. Now it its suppose to allow access to certain websites without the authorization , but I can't under way it isn't. Can some check the iptables for something obvious. 216.67.248.222 is an example that I would like to get through , requests coming in on 192.168.201.x iptables -L -n -t nat Chain PREROUTING (policy ACCEPT) target prot opt source destination ACCEPT all -- 10.0.0.0/8 0.0.0.0/0 ACCEPT all -- 1.0.0.0/8 0.0.0.0/0 NoCat_Capture all -- 0.0.0.0/0 0.0.0.0/0 Chain POSTROUTING (policy ACCEPT) target prot opt source destination MASQUERADE all -- 192.168.0.0/16 0.0.0.0/0 MASQUERADE all -- 172.16.0.0/16 0.0.0.0/0 Chain OUTPUT (policy ACCEPT) target prot opt source destination Chain NoCat_Capture (1 references) target prot opt source destination DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 MARK match 0x4 tcp dpt:443 to:1.165.22.29:5280 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 MARK match 0x4 tcp dpt:80 to:1.165.22.29:5280 RETURN tcp -- 192.168.0.0/16 1.165.22.29 tcp dpt:80 RETURN tcp -- 192.168.0.0/16 1.165.22.29 tcp dpt:443 RETURN tcp -- 192.168.0.0/16 216.67.247.87 tcp dpt:443 RETURN tcp -- 192.168.0.0/16 216.67.248.222 tcp dpt:80 RETURN tcp -- 192.168.0.0/16 216.67.248.222 tcp dpt:443 Chain NoCat_NAT (0 references) target prot opt source destination MASQUERADE all -- 192.168.0.0/16 0.0.0.0/0 MARK match 0x1 MASQUERADE all -- 192.168.0.0/16 0.0.0.0/0 MARK match 0x2 MASQUERADE all -- 192.168.0.0/16 0.0.0.0/0 MARK match 0x3 MASQUERADE all -- 192.168.0.0/16 0.0.0.0/0 MARK match 0x5 MASQUERADE tcp -- 192.168.0.0/16 1.165.22.29 tcp dpt:80 MASQUERADE tcp -- 192.168.0.0/16 1.165.22.29 tcp dpt:443 MASQUERADE tcp -- 192.168.0.0/16 216.67.247.87 tcp dpt:443 MASQUERADE tcp -- 192.168.0.0/16 216.67.248.222 tcp dpt:80 MASQUERADE tcp -- 192.168.0.0/16 216.67.248.222 tcp dpt:443 ------------------- iptables -L -n -t mangle Chain PREROUTING (policy ACCEPT) target prot opt source destination DECRYPT 177 -- 0.0.0.0/0 255.255.255.255 DECRYPT 177 -- 0.0.0.0/0 192.168.1.2 DECRYPT 177 -- 0.0.0.0/0 1.165.22.29 DECRYPT 177 -- 0.0.0.0/0 1.165.22.29 DECRYPT 177 -- 0.0.0.0/0 255.255.255.255 NoCat all -- 0.0.0.0/0 0.0.0.0/0 DECRYPT 177 -- 0.0.0.0/0 0.0.0.0/0 length 92 STRING match test Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination MARK all -- 0.0.0.0/0 0.0.0.0/0 MAC 00:40:F4:9E:0D:B3 MARK set 0x2 Chain OUTPUT (policy ACCEPT) target prot opt source destination TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:!51010 flags:0x06/0x02 TCPMSS set 1300 TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:51010 flags:0x06/0x02 TCPMSS set 1416 NoCatfwd all -- 0.0.0.0/0 0.0.0.0/0 Chain POSTROUTING (policy ACCEPT) target prot opt source destination TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:!51010 flags:0x06/0x02 TCPMSS set 1300 TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:51010 flags:0x06/0x02 TCPMSS set 1416 TTL icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 14 TTL set to 1 TTL icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 13 TTL set to 1 NoCatfwd all -- 0.0.0.0/0 0.0.0.0/0 CRYPT tcp -- 0.0.0.0/0 1.80.129.114 tcp spt:!10083 key: 16a542e algo: 0 CRYPT udp -- 0.0.0.0/0 1.80.129.114 udp dpt:!654 key: 16a542e algo: 0 CRYPT tcp -- 0.0.0.0/0 1.215.116.3 tcp spt:!10083 key: cdbf599 algo: 0 CRYPT udp -- 0.0.0.0/0 1.215.116.3 udp dpt:!654 key: cdbf599 algo: 0 Chain NoCat (1 references) target prot opt source destination MARK all -- 0.0.0.0/0 0.0.0.0/0 MARK set 0x4 MARK all -- 10.0.0.0/8 0.0.0.0/0 MARK set 0x5 MARK all -- 1.0.0.0/8 0.0.0.0/0 MARK set 0x5 MARK all -- 172.16.0.0/16 0.0.0.0/0 MARK set 0x5 MARK all -- 0.0.0.0/0 0.0.0.0/0 MAC 00:40:F4:9E:0D:B3 MARK set 0x2 Chain NoCatfwd (2 references) target prot opt source destination MARK all -- 172.16.0.0/16 0.0.0.0/0 MARK set 0x5 MARK all -- 0.0.0.0/0 10.0.0.0/8 MARK set 0x5 MARK all -- 0.0.0.0/0 1.0.0.0/8 MARK set 0x5 MARK all -- 0.0.0.0/0 255.255.255.255 MARK set 0x6 ----------- iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination DROP all -- 10.255.255.254 0.0.0.0/0 DROP all -- 1.255.255.254 0.0.0.0/0 DROP all -- 0.0.0.0/0 10.255.255.254 DROP all -- 0.0.0.0/0 1.255.255.254 REJECT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:10083 reject-with icmp-port-unreachable lmticmp icmp -- !172.16.0.0/16 0.0.0.0/0 Chain FORWARD (policy ACCEPT) target prot opt source destination ACCT all -- 0.0.0.0/0 0.0.0.0/0 TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x02 TCPMSS set 1300 NoCat all -- 0.0.0.0/0 0.0.0.0/0 Chain OUTPUT (policy ACCEPT) target prot opt source destination REJECT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:10083 reject-with icmp-port-unreachable Chain ACCT (1 references) target prot opt source destination Chain NoCat (1 references) target prot opt source destination NoCat_Ports all -- 0.0.0.0/0 0.0.0.0/0 NoCat_Inbound all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 192.168.0.0/16 0.0.0.0/0 MARK match 0x1 ACCEPT all -- 192.168.0.0/16 0.0.0.0/0 MARK match 0x2 ACCEPT all -- 192.168.0.0/16 0.0.0.0/0 MARK match 0x3 ACCEPT all -- 192.168.0.0/16 0.0.0.0/0 MARK match 0x5 ACCEPT tcp -- 192.168.0.0/16 1.165.22.29 tcp dpt:80 ACCEPT tcp -- 1.165.22.29 192.168.0.0/16 tcp spt:80 ACCEPT tcp -- 192.168.0.0/16 1.165.22.29 tcp dpt:443 ACCEPT tcp -- 1.165.22.29 192.168.0.0/16 tcp spt:443 ACCEPT tcp -- 216.67.247.87 192.168.0.0/16 tcp spt:80 ACCEPT tcp -- 192.168.0.0/16 216.67.247.87 tcp dpt:443 ACCEPT tcp -- 216.67.247.87 192.168.0.0/16 tcp spt:443 ACCEPT tcp -- 192.168.0.0/16 216.67.248.222 tcp dpt:80 ACCEPT tcp -- 216.67.248.222 192.168.0.0/16 tcp spt:80 ACCEPT tcp -- 192.168.0.0/16 216.67.248.222 tcp dpt:443 ACCEPT tcp -- 216.67.248.222 192.168.0.0/16 tcp spt:443 ACCEPT all -- 10.0.0.0/8 0.0.0.0/0 ACCEPT all -- 1.0.0.0/8 0.0.0.0/0 ACCEPT udp -- 0.0.0.0/0 172.16.0.0/16 udp dpt:53 DROP all -- 0.0.0.0/0 0.0.0.0/0 Chain NoCat_Inbound (1 references) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 MAC 00:40:F4:9E:0D:B3 Chain NoCat_Ports (1 references) target prot opt source destination DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:25 MARK match 0x3 DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:25 MARK match 0x3 DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:111 MARK match 0x3 DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:111 MARK match 0x3 Chain lmticmp (1 references) target prot opt source destination ACCEPT all -- !192.168.0.0/16 0.0.0.0/0 ACCEPT all -- 192.168.0.0/16 0.0.0.0/0 limit: avg 30/sec burst 5 LOG all -- 0.0.0.0/0 0.0.0.0/0 limit: avg 5/min burst 5 LOG flags 0 level 0 prefix `STORMWARNING: ' DROP all -- 0.0.0.0/0 0.0.0.0/0 |