Collaborate Disseminate
I have two almost identical embedded hosts that I am scanning with NMAP on the specific UDP port 47808.
On host 192.168.2.12 NMAP returns after a while with:
while on 192.168.2.24 NMAP immediately returns with:
In both cases the host rep… Continue reading ICMP port unreachable message stops NMAP on UDP scan but not always [closed]
I have several Linux Mint 21.3 PCs. Is it safe to allow all types of ICMP on these end-point stations on my local home network?
My IPv4 iptables:
$ sudo iptables -L –line-numbers
Chain INPUT (policy DROP)
num target prot opt source… Continue reading Is it safe to allow all types of ICMP on the end-point stations on a local network? [closed]
What’s the best practice for dealing with ICMP traffic to a public facing web server? I know similar
questions have been asked a number of times, but what’s still lacking is a clear, current answer in the context of public facing web serve… Continue reading Current verdict on ICMP traffic to a public facing web server?
I am trying to check the port status of a external IP using NMAP, I am getting different result on different interface to same destination (destination is a public IP).
When NMAP tried from the internal interface 10.204.59.166
localhost2:/… Continue reading NMAP same destination ip, different scanner interface, different result
I’m experiencing an issue with Windows 10 where IPv6 connectivity becomes unstable over time. Initially, IPv6 works as expected, but after a while, it stops working. Upon investigation, I’ve determined that the issue is related to my Windo… Continue reading Which inbound/outbound rules are necessary for stable IPv6 connectivity in Windows 10/11? [migrated]
I am learning about ICMP smurf attack and for this, I have forged a packet with the following details:
source_mac_address = **??**
destination_mac_address = router mac address
char source_ip_address = victim ip address (within subnet… Continue reading icmp smurf attack
We use an external scanner (Qualys) to scan our external assets. We have a firewall in front of the external assets, but it is configured to whitelist the scanner so that the external assets get scanned in-depth. But the firewall is also c… Continue reading ICMP timestamp – firewall configured to drop timestamp request, but vulnerability scanner can send request and get a response
It’s a venerable program, and this version had a venerable bug in it. Continue reading Ping of death! FreeBSD fixes crashtastic bug in network tool
I’m having some issues getting Honeyd to work properly on an external network interface on Ubuntu 20 LTS running on a Proxmox server. I’m fairly sure it’s a configuration/setup problem on the VM I’m running it on, as the config file works … Continue reading Honeyd not responding to TCP
Rootless podman, by proxy of the Linux Kernel, has restrictions against ping,
It is most likely necessary to enable unprivileged pings on the host.
Why do unprivileged pings need to be enabled? And what is the detriment to be able to sen… Continue reading Why is ping special: why do "unprivileged pings" have to be enabled?