Collaborate Disseminate
I have an HP printer which uses DHCP to connect to the local network (LAN). My DHCP forces a specific IP address to make it easier on me.
I also added the IP address in my /etc/hosts:
10.3.3.3 printer
Then I use http://printer/ in m… Continue reading Trying to access my HP printer via a device name failed today; would this be a new printer feature? [closed]
I am writing the iplock tool to help me setup my Linux firewall. For the most part, my current strategy, since I don’t yet use IPv6 much, is to pretty block everything IPv6 ("simple").
I would like to switch all my public facing … Continue reading Do I have to block IPv4-mapped IP addresses in my IPv6 firewall?
VirtualBox has an option to encrypt the drive of a VM.
When I installed Debian or Ubuntu, I have the option to say that I want the full disk encrypted.
I’m thinking that both do pretty much the same thing in this situation and they are not… Continue reading When using VirtualBox, is it better to use the VirtualBox encryption or the OS disk encryption?
If my Content-Security-Policy is set to the following:
Content-Security-Policy: frame-ancestors ‘self’
Does it also imply:
Content-Security-Policy: default-src ‘self’
Or is it a lot safer to put both rules?
Content-Security-Policy: defau… Continue reading Is the "same-origin" implied when using "frame-ancestor" in the CSP header?
Many tools in Linux allow for checking things as a non-root user. For example, at any time, I can check whether a service is running:
$ systemctl status ntp
However, the iptables needs to be used as root whatever the option. I’m wondering… Continue reading Why is the -L (list) option of iptables not available to non-root users?
I want to prevent my daughter from accessing YouTube while she’s attending school. So I was thinking to add protections in iptables. Unfortunately, when she goes to YouTube, the DNS resolves to IP addresses which reverse lookup to 1e100.ne… Continue reading How can I block hits to Youtube using iptables?
I like to track the websites my daughter goes to in order to have some control. So I installed bettercap and setup a script to start it to sniff the HTML URLs being accessed (well, the reverse URL from the IP really).
sudo bettercap –eval… Continue reading At times bettercap ARP sniffing works great and at times not at all, what would be the reason?
I wake up this morning to a rebooted server. The DNS server was running at over 100%. After a little bit of work, I got fail2ban in place to block all of those requests.
The requests themselves are valid, jut repeated hundred of times per … Continue reading Why would hackers attack a DNS server with a DoS?
I’m trying to run a docker and it fails for various reasons. As I check my list of dockers (docker ps -a), I see those names:
pedantic_gauss
recursing_feynman
adoring_brattain
suspicious_tesla
gallant_gates
competent_gates
elated_davinci
… Continue reading I’m seeing strange names in my list of docker containers, is someone having fun at docker or is that from hackers?
I block most everything with my firewall, what I don’t get is why would I constantly receive hits to connect on random ports from port 443.
[iptables] reject_ipv6: IN=eno1 OUT= MAC=…
SRC=2607:f8b0:4005:0805:0000:0000:… Continue reading Why am I receiving hits with SPT=443 on IPv6?