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Blocking inbound TCP segments with ACK=0
Blocking inbound TCP segments with SYN=1
Both prevent external clients from making TCP connections to internal clients, but allow internal clients to connect to outside. How?
This came across to m… Continue reading Block inbound TCP segments with ACK=0 vs Block inbound TCP segments with SYN=1, how are they same?
how do I get rid of a firewall.
somebody was able to geuss my password and able to hack into my chrome and they created a firewall and now I cant really get to any of my important sites
I need to set up a small network as shown below. Is it really required that the "switch should also host a firewall" when all the communication between the "computers" is over TLS?
Continue reading In a network do we need both TLS and Firewall?
Learning abit about allowed OCSP hosts on Windows 10:
I’ve picked up OCSP requests carried out by CryptSvc pointing towards an OCSP server in Japan. Referring to Microsoft’s Win10 Non-enterprise endpoint lists, I’ve already witnessed and c… Continue reading OCSP hosts. How to tell Malicious OCSP hosts apart
I am installing the Twitch app, and a firewall warning popped up asking that I give permissions to use the app via private and/or public networks.
I am a security newbie but a bit paranoid and wonder what are the risks of allowing the app … Continue reading Apps like Twitch asking for Firewall exceptions: are we at risk of having our computer hacked?
I need to send ICMPv6 echo request with payload of size greater than 65535 bytes. To test ping of death attack.
I tried below scapy codes but got errors
pkt=IPv6(src=src1, dst=dst1)/IPv6ExtHdrHopByHop(options=Jumbo(jumboplen=66000))/ICMPv6… Continue reading How to create icmpv6 ping of death packet using scapy?
I have set up an OpenVPN server on a Raspberry PI … it works without problems when I want to connect to using mobile data or from my Internet at home … it only won’t work in the wifi of network in which I need to use the VPN :/ I downl… Continue reading OpenVPN HTTP proxy header parse error (add UNUSED OPTIONS)
The rejected ICMP requests have been logged on the firewall of my router.
IN=ppp*** Direction=OUT Public->Local PROTO=ICMP Type=8 CODE=0 DST is
my WAN IP, and I’m in a CGNAT.
It sends one request every minute, and I get "general … Continue reading ICMP Echo Requests Every Minute from an IP Address
I am trying to understand the risks posed by having a wireguard connection under a very specific and narrow set of circumstances.
I have a desktop at home that is behind a router/firewall and is not exposed to the internet in any way.
I … Continue reading Risks posed by a wireguard connection to a compromised server
There’s an IP address keeping ICMP my network every minute.
I’ve already blocked the IP on my router, I’d like to know how to configure traffic control on Android if possible.
Please tell me if there’s a way or app to control access from/t… Continue reading How to Block an IP Address on Android [migrated]