jskool
DD-WRT Novice
Joined: 28 Nov 2016
Posts: 1
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 Posted: Mon Nov 28, 2016 8:09 Post subject: dd-wrt, Stop all internet access except email. |
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Dear All,
I have 15 to 20computers which are connected to a router which runs on DD-WRT v24.
I need to block the internet access except for email in outlook.
Email is from a provider pop.xxxxx.com and smtp.xxxxx.com with port 25 and 995.
What i tried is..
In Access Restrictions (Menu) -> Blocked Services
blocked all the ports except 25 and 995
This stops the internet but the email don't work.
Even the VPN i try to connect through PPTP is not connecting.
Any helps or steps to try ?
Thanks all,
Js |
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Alozaros
DD-WRT Guru
Joined: 16 Nov 2015
Posts: 6439
Location: UK, London, just across the river..
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| Posted: Mon Nov 28, 2016 12:38 Post subject: |
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i guess if you stop everything and leave only port 25 + 995
you might need port 53 DNS otherwise no network
just cut
80, 443, and 8080 and leave 25, 995, and 53 to try
you can also use IPtables
iptables -A TCP -p tcp --dport 80 -j DROP
iptables -A TCP -p tcp --dport 443 -j DROP
iptables -A TCP -p tcp --dport 8080 -j DROP
_________________
Atheros
TP-Link WR740Nv1 ---DD-WRT 55630 WAP
TP-Link WR1043NDv2 -DD-WRT 55723 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 --DD-WRT 55779 Gateway/DoH,Forced DNS,AP Isolation,4VLAN,Ad-Block,Firewall,Vanilla
Netgear R7800 --DD-WRT 55819 Gateway/DoT,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla
Netgear R9000 --DD-WRT 55779 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Broadcom
Netgear R7000 --DD-WRT 55460 Gateway/SmartDNS/DoH,AD-Block,Firewall,Forced DNS,x3VLAN,VPN
NOT USING 5Ghz ANYWHERE
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Stubby DNS over TLS I DNSCrypt v2 by mac913 |
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