I didn’t come up with this idea myself, this is straight from OpenBSD disk setup guide (which I personally trust as a good source of info) :
Encrypting External Disks
This section explains how to set up a cryptographic softraid volume for an external USB drive. An outline of the steps is as follows:
- Overwrite the drive’s contents with random data
[…]
# dd if=/dev/urandom of=/dev/rsd3c bs=1m
/usr/share/language/pack/français: Permission refusée
Well as I see it, it will just do a lot of write operations to your disk, which might eventually damage it if you do it a lot (just like any write operation done on a disk). However, this specific command isn’t bad per se, and is even technically a good thing to do for preparing to full disk encryption.
sudo cat is pointless here, better do
</dev/urandom sudo tee /dev/sd*
As a bonus it’ll scramble your terminal 💪
Nevermind I figured it out, you gotta use sudo for it to work properly !
Nevermind I figured what went wrong, I mistyped it initially ! It would have been much easier to copy paste it if it wasn’t a picture…
Fun fact, the command displays a nice cat picture in ASCII :)
Edit: screenshot
I just tried your command and it yields a lot of Permission denied. Is it expected or your command is incomplete ?
I tried but got an error:
:& : Command not found
Is it expected ? Did I type something wrong ? I’m confused…
Just like stabbing yourself if the eye is better with a fork than with a rusty fork.
pf gang rise up !
Keeping the source IP intact means you’ll have troubles routing back the traffic through host B.
Basically host A won’t be able to access the internet without going through B, which could not be what you want.
Here’s how it works:
On host A:
On host B:
This should do what you need. However, if I may comment it out, I’d say you should give up on carrying the source IP address down to host A. This setup I described is clunky and can fail in many ways. Also I can see no benefits of doing that besides having “pretty logs” on host A. If you really need good logs, I’d suggest setting up a good reverse proxy on host B and forwarding it’s logs to a collector on host A.
OpenBSD is the most pleasing expérience I’ve had with an OS. It’s fully contained and has all the tools you need without needing to install anything (eg a DNS, HTTP, SMTP servers, a proxy, a good firewall). All config files look alike and use the same keywords for the same things, making it straightforward to configure everything.
And regarding RAID 1, I’ve never done it myself, but it totally works out of the box (as well as full disk encryption).
OpenBSD for all of them.
There are online service that can do it for you. Check “IPv6” in the glossary.
Can you edit your message to add a spoiler tag ?
It’s up and running ! The error you get is probably related to the fact you’re trying to trace it over ipv4.
% pm -i | wc -l
55
That’s how many software I packaged myself. They are installed to /usr/local using an alternative package manager because I couldn’t be bothered with making an appropriate .deb.
And as to explain how this alternate workflow is less complex, here’s how I go about installing a program:
% git clone git://git.z3bra.org/human ~/code/human
Cloning into '/home/z3bra/code/human'...
remote: Enumerating objects: 53, done.
remote: Counting objects: 100% (53/53), done.
remote: Compressing objects: 100% (53/53), done.
remote: Total 53 (delta 28), reused 0 (delta 0), pack-reused 0
Receiving objects: 100% (53/53), 9.35 KiB | 195.00 KiB/s, done.
Resolving deltas: 100% (28/28), done.
% cd $_
% pack
CC human.c
LD human
install -D -m 0755 human /tmp/tmp.rfnbLyIQOz/usr/local/bin/human
install -D -m 0644 human.1 /tmp/tmp.rfnbLyIQOz/usr/local/man/man1/human.1
> /tmp/human@0.3.tbz
installed human (0.3)
% pm -i human
usr/
usr/local/
usr/local/bin/
usr/local/bin/human
usr/local/man/
usr/local/man/man1/
usr/local/man/man1/human.1
Talking for myself and not OP: What’s complex about apt and yum is the package format per se. The cli is very straightforward and “just works”, but whenever you want something that’s not packaged and need to package it yourself, you gotta fasten your seatbelt and prepare for the complex task of creating an RPM or a DEB package.
I know there are tools to help with that, but I’ve created packages for many distros (Debian, CentOS, Alpine, Arch, Void and Crux), and rpm/deb are just way more complex to create than the alternatives.
But I have more vertical space too ;)
I’m on the boring side…
PS1="% "
I like it though, it gives me more room for commands !
Crux. Simplest package building system out there, and the core is just out of the way completely, giving you the keys to setup your system just the way you want it.