#Linux

6 posts tagged Linux

Linus on mRNA

· misc

Please keep your insane and technically incorrect anti-vax comments to yourself.

You don't know what you are talking about, you don't know what mRNA
is, and you're spreading idiotic lies. Maybe you do so unwittingly,
because of bad education. Maybe you do so because you've talked to
"experts" or watched youtube videos by charlatans that don't know what
they are talking about.

But dammit, regardless of where you have gotten your mis-information
from, any Linux kernel discussion list isn't going to have your
idiotic drivel pass uncontested from me.

Vaccines have saved the lives of literally tens of millions of people.

Just for your edification in case you are actually willing to be
educated: mRNA doesn't change your genetic sequence in any way. It is
the exact same intermediate - and temporary - kind of material that
your cells generate internally all the time as part of your normal
cell processes, and all that the mRNA vaccines do is to add a dose
their own specialized sequence that then makes your normal cell
machinery generate that spike protein so that your body learns how to
recognize it.

The half-life of mRNA is a few hours. Any injected mRNA will be all
gone from your body in a day or two. It doesn't change anything
long-term, except for that natural "your body now knows how to
recognize and fight off a new foreign protein" (which then tends to
fade over time too, but lasts a lot longer than a few days). And yes,
while your body learns to fight off that foreign material, you may
feel like shit for a while. That's normal, and it's your natural
response to your cells spending resources on learning how to deal with
the new threat.

And of the vaccines, the mRNA ones are the most modern, and the most
targeted - exactly because they do *not* need to have any of the other
genetic material that you traditionally have in a vaccine (ie no need
for basically the whole - if weakened - bacterial or virus genetic
material). So the mRNA vaccines actually have *less* of that foreign
material in them than traditional vaccines do. And  a *lot* less than
the very real and actual COVID-19 virus that is spreading in your
neighborhood.

Honestly, anybody who has told you differently, and who has told you
that it changes your genetic material, is simply uneducated.  You need
to stop believing the anti-vax lies, and you need to start protecting
your family and the people around you.  Get vaccinated.

I think you are in Germany, and COVID-19 numbers are going down. It's
spreading a lot less these days, largely because people around you
have started getting the vaccine - about half having gotten their
first dose around you, and about a quarter being fully vaccinated. If
you and your family are more protected these days, it's because of all
those other people who made the right choice, but it's worth noting
that as you see the disease numbers go down in your neighborhood,
those diminishing numbers are going to predominantly be about people
like you and your family.

So don't feel all warm and fuzzy about the fact that covid cases have
dropped a lot around you. Yes, all those vaccinated people around you
will protect you too, but if there is another wave, possibly due to a
more transmissible version - you and your family will be at _much_
higher risk than those vaccinated people because of your ignorance and
mis-information.

Get vaccinated. Stop believing the anti-vax lies.

And if you insist on believing in the crazy conspiracy theories, at
least SHUT THE HELL UP about it on Linux kernel discussion lists.

                Linus

Source.

Linux gateway/router + unable to access certain (HTTPS) sites

· errors, linux, networking

I’ve had an issue for a while, being unable to access certain websites such as https://fon.com, but also certain parts of the Apple, Fortis and Microsoft site, while other (https) websites worked fine.

Running Wireshark I found that only about 5ish packets got transferred, and all other data to that website abruptly stopped.

I’m using ADSL (EDPnet), which has an MTU of 1492, however, I was able to access all websites from the router (using lynx, for example), but not from any other PC within the network.

MRTG

· hardware, misc, networking, software, www

As I often have people asking for the files I use to make my pretty MRTG graphs; I’ll publish them here.

Here are some examples:

Zero - One - Four - vm1 - Sauron

The config files:

Sauron (including Squid stats),

Zero (including fan stats).

List of files included:

  • indexmaker; simple script (included with MRTG) to generate a simple index file with all the graphs
  • snmp-if.sh; will show you the IDs of the interfaces on the server/pc. These IDs have to be edited in the mrtg.cfg file; e.g.:

Target[eth0]: 2:public@localhost:

OpenVPN Linux + Mac howto

· apple, linux, networking

A short howto, as I was unable to find any clear ones on the net.

I'm using Mac OS X (Leopard) as client, and a Gentoo server as server/host.

I both tried Viscosity and Tunnelblick on my Mac as OpenVPN software, and Viscosity is probably somewhat easier to configure (using the GUI), it was shareware. So I ended up using Tunnelblick and it seems to be doing its job quite well.

First of all, make sure Gentoo is set up and working as intended. I used my home router as VPN server (having both eth0 and eth1 (= ppp0).

Multiple Memory Access Vulnerabilities Linux Kernel

· errors, linux

Well, it had to happen…

Yesterday evening two of our linux boxes were exploited. I had to try it out for myself; and yes, it really does work. :| Booted up my Ubuntu in Parallels, installed build-essential & ran that program!

sudo apt-get install build-essential
gcc what-ever-the-file-name-is.c
./a.out

This is what it looks like:

Kernel exploit

My-oh-my… I’m pretty sure this doesn’t require any more explanations ;)

Parallels + Ubuntu

· apple, linux, virtualisation

I finally got a reply from the Parallels support team. After using the alternate Parallels installer it finally works again! Even after rebooting Mac! joy

Before trying to run Vista/Bootcamp through Parallels again, I’m waiting till the end of my exams (Thursday). Don’t want to blow up my Windows install again when I’m in desperate need of it. ;)

As usual with Parallels, creating/installing a new OS isn’t easy. Wether it crashes or you get a bunch of errors, you’re always up for a day full of fun!