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71 changed files with 258 additions and 248 deletions

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@ -2,6 +2,7 @@
permalink: "/{{ year }}/{{ month }}/{{ day }}/blog-static"
title: "blog? static!"
published_date: "2011-01-15 15:54:00 +0100"
layout: post.liquid
data:
route: blog
---

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@ -22,6 +22,7 @@ You can find the script here: [watch.js](http://tmp.fnordig.de/watch.js). It's m
The small app.js is just this:
```javascript
socket = new io.Socket('localhost');
socket.connect();
socket.on('message', function(data){
@ -29,6 +30,6 @@ The small app.js is just this:
if(data.reload)
window.location.reload();
});
{:lang="javascript"}
```
So next thing: individual pages for posts, maybe templates.

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@ -19,6 +19,7 @@ As I really like [node.js](http://nodejs.org/) I wanted to know how it handles v
It's as easy as this:
```javascript
var http = require('http');
var server = http.createServer(function (request, response) {
response.writeHead(200, {"Content-Type":"text/plain"});
@ -27,13 +28,14 @@ It's as easy as this:
});
server.listen(80, "2a01:xxxx:xxxx:xxxx::2");
console.log("Server running on localhost at port 80");
{:lang="javascript"}
```
Just pass the IPv6 address as the host parameter to `server.listen`.
This listens on just one IP; it's possible to listen on all, similar to the `0.0.0.0` for IPv4:
```javascript
server.listen(80, "::0");
{:lang="javascript"}
```
Other things worth to mention:

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@ -34,7 +34,6 @@ Adding syntax-highlighted code in your post now works like this:
even multi-line
and define language after code block
{:lang="ruby"}
{:lang="text"}
And now some real highlighting to show it in action:

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@ -15,10 +15,11 @@ My SSL certificate is signed by [cacert][] (they approved me at last year's FrOS
If you're using nginx, all you need to do is adding the following lines to your config:
```
listen 443 ssl;
ssl_certificate /path/to/your/cert.pem;
ssl_certificate_key /path/to/your/key.pem;
{:lang="text"}
```
If you followed some of the latest news around the scene, you probably heard of the [diginotar debacle][diginotar]. This should make clear how broken the system is and how unsecure these SSL certificates can be with all those CAs around.

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@ -33,15 +33,17 @@ etherpad runs as an own user named `etherpad` and is monitored by monit.
The monitoring is as simple as that, `/etc/monit/apps/etherpad.monit`:
```
check process etherpad
with pidfile /var/run/etherpad-lite.pid
start program = "/home/etherpad/etherpad-lite/daemon.sh start"
stop program = "/home/etherpad/etherpad-lite/daemon.sh stop"
if totalmem is greater than 300 MB for 10 cycles then restart # eating up memory?
{:lang="text"}
```
And the nginx is nothing fancy at all, `/usr/local/nginx/conf/vhosts/pad.fnordig.de.conf`:
```
server {
listen 80;
listen [::]:80;
@ -60,7 +62,7 @@ And the nginx is nothing fancy at all, `/usr/local/nginx/conf/vhosts/pad.fnordig
proxy_buffering off;
}
}
{:lang="text"}
```
My etherpad is currently running for about 22 days without any problems. I don't really use it myself and have no current statistics on outside usage of [pad.fnordig.de](https://pad.fnordig.de/).

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@ -37,20 +37,22 @@ end
and start it with
```
proxymachine -h 0.0.0.0 -p 1234 -c your_socks_config.rb
{:lang="text"}
```
Tada! You got your own [SOCKS4](http://en.wikipedia.org/wiki/SOCKS#SOCKS4) Proxy up and running.
[@nerdsein](https://twitter.com/#!/nerdsein/status/120258441041297409) got another solution: [Mocks](http://sourceforge.net/projects/mocks/), "**M**y **O**wn so**CK**s **S**erver."
Download it over at Sourceforge, unpack it and compile the code with:
```
gcc -lnsl -o mocks child.c error.c misc.c socksd.c up_proxy.c
{:lang="text"}
```
You can configure a little bit more than with proxymachine, but you can stick with the default config for now:
```
PORT = 10080
MOCKS_ADDR = 0.0.0.0
LOG_FILE = mocks.log
@ -64,19 +66,22 @@ You can configure a little bit more than with proxymachine, but you can stick wi
MAX_CONNECTIONS = 50
FILTER_POLICY = ALLOW
{:lang="text"}
```
See the README and the config file in the archive for comments on it. Then start it with:
```
src/mocks -c mocks.config start
{:lang="text"}
```
and kill it with:
```
src/mocks -c mocks.config shutdown
{:lang="text"}
```
Oh, and in case you have the possibility to just ssh to the server, you can start up a SOCKS proxy on this connection, too:
```
ssh -D1234 example.com
{:lang="text"}
```

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@ -16,8 +16,9 @@ Complete taking down the machine and reinstalling everything was not an option,
By default the jabber server listens on all IPv6 addresses of the host machine, so all I needed to do here was enabling ssl-serving over IPv6 for it:
```
<tls port="5223">2001:0db8:85a3:08d3:1319:8a2e:0370:7344</tls>
{:lang="text"}
```
(this is a completeley random ipv6 addresses ;)
Now to the "hard" part: the bitlbee thing.
@ -28,24 +29,28 @@ But, as I told before, the server is a rather old installation and uses `netkit-
So I had to replace this one:
```
apt-get install netbsd-inetd
{:lang="text"}
```
One line in `/etc/inetd.conf` reads as the following:
```
9999 stream tcp nowait bitlbee /usr/bin/stunnel stunnel -v 0 -l /usr/sbin/bitlbee
{:lang="text"}
```
This needs to be duplicated and changed to listen on v6, too.
```
9999 stream tcp6 nowait bitlbee /usr/bin/stunnel stunnel -v 0 -l /usr/sbin/bitlbee
{:lang="text"}
```
And that's it.
```
/etc/init.d/netbsd-inetd start
/etc/init.d/jabberd14 restart
{:lang="text"}
```
and you should be ready to go.

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@ -14,6 +14,7 @@ But is just to much overhead if I just need one command. So I took half an hour
Or read here:
```
# original: http://tridex.net/2011-06-19/linux-netzwerke-ohne-ifconfig/
# text version by @badboy_ (fnordig.de)
@ -46,3 +47,4 @@ Or read here:
| route del -net 192.168.2.0 | ip route del 192.168.2.0/24 | Netzwerk-Route löschen |
| netmask 255.255.255.0 | via 192.168.1.100 dev eth0 | |
| gw 192.168.1.100 dev eth0 | | |
```

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@ -21,10 +21,7 @@ Except I would just repeat what I have said back then for my Bachelor Thesis.
So instead let me collect some statistics.
<center>
![Contributions to master](https://tmp.fnordig.de/ma/commits.png)
Contributions to master
</center>
I created the repository for all thesis work just 2 days after my birthday in 2016.
Back then it should have been a completely different thesis topic, but due to some unexpected difficulties I had to drop the first topic before even beginning and went on to search for another.
@ -34,10 +31,7 @@ None of that code ended up in the final application of course.
My commit frequency was quite different from back in my Bachelor thesis days.
A lot less night shifts, but still nothing early in the morning.
<center>
![Frequency of commits by time of day](https://tmp.fnordig.de/ma/punchcard.png)
Frequency of commits by time of day
</center>
My application ended with about 4000 lines of C code, plus another 2000 lines of code in examples, tests and experiments.
I also wrote some small helper tools in Rust, e.g. [ebpf-disasm](https://github.com/badboy/ebpf-disasm/) and a library and another tool, which I will make public in the next days.

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@ -12,8 +12,6 @@ A couple of weeks ago I received my final grade and thus reached the academic de
This also means I can now make the thesis public:
<center>
[Network Function Offloading in Virtualized Environments](https://tmp.fnordig.de/uni/master-thesis/nf-offloading-in-virtualized-environments_jan-erik_rediger.pdf) (PDF)
</center>
If you have questions regarding anything in that thesis, contact me [on Twitter](https://twitter.com/badboy_) or [via email](mailto:janerik\ at\ fnordig\ dot\ de).
If you have questions regarding anything in that thesis, contact me [on Twitter](https://twitter.com/badboy_) or [via email](mailto:janerik@fnordig.de).

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@ -20,12 +20,12 @@ Given how simple that sounds, I decided to implement a minimal DOH client in Rus
I present to you:
<center>
### [dnsoverhttps][]
<h3><a href="https://github.com/badboy/dnsoverhttps">dnsoverhttps</a></h3>
</center>
It exports one function to resolve a hostname to its IPv6 and IPv4 addresses:
```
```rust
extern crate dnsoverhttps;
fn main() {

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@ -35,7 +35,7 @@ This makes for a very pleasant development experience.
Add the dependency to your `Cargo.toml`:
```ini
```toml
[dependencies]
redis = "0.11.0"
```

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@ -27,7 +27,7 @@ Let's deploy it on [fly.io].
We start by creating a new Fly app.
We stick to a generated name and put it into Frankfurt.
```bash
```shell
$ mkdir -p Documents/gotosocial-fly
$ cd Documents/gotosocial-fly
$ fly launch

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@ -81,7 +81,7 @@ I trimmed that down just slightly and swapped in Ruby 2.7 (here's the [list of a
The important line is this:
```
```nix
ruby = pkgs."ruby-2.7.8";
```
@ -89,7 +89,7 @@ ruby = pkgs."ruby-2.7.8";
Now on to installing it into a shell:
```
```bash
nix develop
```

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@ -19,8 +19,8 @@ data:
{% assign phrase = " minute read" | prepend: reading_time %}
<time pubdate="pubdate">{{ post.published_date | date: "%b %d, %Y" }} · {{ phrase }}</time>
{% if post.data and post.data.tags -%}
{%- for tag in post.data.tags %}
{% if post.data and post.tags -%}
{%- for tag in post.tags %}
· <a href="/tagged/{{ tag }}.html">{{ tag }}</a>
{%- endfor %}
{%- endif -%}

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@ -11,7 +11,7 @@ data:
<table>
{%- for post in collections.posts.pages %}
{%- assign postyear = post.published_date | date: "%Y" %}
{%- if post.data.tags and post.data.tags contains "mozilla" -%}
{%- if post.tags and post.tags contains "mozilla" -%}
<tr>
<td>{{ post.published_date | date: "%d. %b %Y"}}</td>
<td><a href="/{{post.permalink }}">{{post.title}}</a></td>

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@ -8,7 +8,7 @@ permalink: /tagged/mozilla.xml
<link>https://fnordig.de</link>
<description>fnordig - posts tagged with 'mozilla'</description>
{% for post in collections.posts.pages %}
{%- if post.data.tags and post.data.tags contains "mozilla" -%}
{%- if post.tags and post.tags contains "mozilla" -%}
<item>
<title>{{ post.title | escape }}</title>
<link>https://fnordig.de/{{ post.permalink }}</link>

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@ -11,7 +11,7 @@ data:
<table>
{%- for post in collections.posts.pages %}
{%- assign postyear = post.published_date | date: "%Y" %}
{%- if post.data.tags and post.data.tags contains "nix" -%}
{%- if post.tags and post.tags contains "nix" -%}
<tr>
<td>{{ post.published_date | date: "%d. %b %Y"}}</td>
<td><a href="/{{post.permalink }}">{{post.title}}</a></td>

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@ -8,7 +8,7 @@ permalink: /tagged/nix.xml
<link>https://fnordig.de</link>
<description>fnordig - post tagged with 'nix'</description>
{% for post in collections.posts.pages %}
{%- if post.data.tags and post.data.tags contains "nix" -%}
{%- if post.tags and post.tags contains "nix" -%}
<item>
<title>{{ post.title | escape }}</title>
<link>https://fnordig.de/{{ post.permalink }}</link>

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@ -11,7 +11,7 @@ data:
<table>
{%- for post in collections.posts.pages %}
{%- assign postyear = post.published_date | date: "%Y" %}
{%- if post.data.tags and post.data.tags contains "rust" -%}
{%- if post.tags and post.tags contains "rust" -%}
<tr>
<td>{{ post.published_date | date: "%d. %b %Y"}}</td>
<td><a href="/{{post.permalink }}">{{post.title}}</a></td>

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@ -8,7 +8,7 @@ permalink: /tagged/rust.xml
<link>https://fnordig.de</link>
<description>fnordig - post tagged with 'rust'</description>
{% for post in collections.posts.pages %}
{%- if post.data.tags and post.data.tags contains "rust" -%}
{%- if post.tags and post.tags contains "rust" -%}
<item>
<title>{{ post.title | escape }}</title>
<link>https://fnordig.de/{{ post.permalink }}</link>