How to filter domains on a transparent network bridge?
How can you filter traffic on a transparent network bridge?
With iptables it is possible to some extend but most of the time a proxy is recommended or alternatively something like pi-hole or dnsmasq for filtering by domain name.
But I could not find anything regarding a network bridge for those two options. Is this possible in general with the bridge being invisible on the network? Or is iptables the only option?
networking firewall proxy bridge
asked 9 hours ago
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How can you filter traffic on a transparent network bridge?
With iptables it is possible to some extend but most of the time a proxy is recommended or alternatively something like pi-hole or dnsmasq for filtering by domain name.
But I could not find anything regarding a network bridge for those two options. Is this possible in general with the bridge being invisible on the network? Or is iptables the only option?
networking firewall proxy bridge
asked 9 hours ago
user468user468
1
New contributor
user468 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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1
You can filter packets on a bridge (on layer 2) withebtables, similar to like you filter withiptableson layer 3. Note that "domains" is a concept that only exists on layers above those, so you can't filter for "domains" withiptablesorebtables, and depending on what you mean by "domains" (DNS? URLs in HTTP? Something else?) you need some kind of proxy. But you can transparently forward to this proxy withebtablesoriptables.
– dirkt
6 hours ago
add a comment |
How can you filter traffic on a transparent network bridge?
With iptables it is possible to some extend but most of the time a proxy is recommended or alternatively something like pi-hole or dnsmasq for filtering by domain name.
But I could not find anything regarding a network bridge for those two options. Is this possible in general with the bridge being invisible on the network? Or is iptables the only option?
networking firewall proxy bridge
asked 9 hours ago
user468user468
1
New contributor
user468 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
How can you filter traffic on a transparent network bridge?
With iptables it is possible to some extend but most of the time a proxy is recommended or alternatively something like pi-hole or dnsmasq for filtering by domain name.
But I could not find anything regarding a network bridge for those two options. Is this possible in general with the bridge being invisible on the network? Or is iptables the only option?
networking firewall proxy bridge
networking firewall proxy bridge
asked 9 hours ago
user468user468
1
New contributor
user468 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 9 hours ago
user468user468
1
New contributor
user468 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 9 hours ago
user468user468
1
New contributor
user468 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 9 hours ago
user468user468
1
asked 9 hours ago
user468user468
1
1
New contributor
user468 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
user468 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
user468 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
You can filter packets on a bridge (on layer 2) withebtables, similar to like you filter withiptableson layer 3. Note that "domains" is a concept that only exists on layers above those, so you can't filter for "domains" withiptablesorebtables, and depending on what you mean by "domains" (DNS? URLs in HTTP? Something else?) you need some kind of proxy. But you can transparently forward to this proxy withebtablesoriptables.
– dirkt
6 hours ago
add a comment |
1
You can filter packets on a bridge (on layer 2) withebtables, similar to like you filter withiptableson layer 3. Note that "domains" is a concept that only exists on layers above those, so you can't filter for "domains" withiptablesorebtables, and depending on what you mean by "domains" (DNS? URLs in HTTP? Something else?) you need some kind of proxy. But you can transparently forward to this proxy withebtablesoriptables.
– dirkt
6 hours ago
1
1
You can filter packets on a bridge (on layer 2) with
ebtables, similar to like you filter with iptables on layer 3. Note that "domains" is a concept that only exists on layers above those, so you can't filter for "domains" with iptables or ebtables, and depending on what you mean by "domains" (DNS? URLs in HTTP? Something else?) you need some kind of proxy. But you can transparently forward to this proxy with ebtables or iptables.– dirkt
6 hours ago
You can filter packets on a bridge (on layer 2) with
ebtables, similar to like you filter with iptables on layer 3. Note that "domains" is a concept that only exists on layers above those, so you can't filter for "domains" with iptables or ebtables, and depending on what you mean by "domains" (DNS? URLs in HTTP? Something else?) you need some kind of proxy. But you can transparently forward to this proxy with ebtables or iptables.– dirkt
6 hours ago
add a comment |
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1
You can filter packets on a bridge (on layer 2) with
ebtables, similar to like you filter withiptableson layer 3. Note that "domains" is a concept that only exists on layers above those, so you can't filter for "domains" withiptablesorebtables, and depending on what you mean by "domains" (DNS? URLs in HTTP? Something else?) you need some kind of proxy. But you can transparently forward to this proxy withebtablesoriptables.– dirkt
6 hours ago