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Ondřej Caletka oskar456

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oskar456 / ipnetworks.py
Created August 30, 2012 07:03
GrepCIDR in Python
#!/usr/bin/env python
import ipaddr
class IPNetworks():
"""Represent a set of IP ranges.
Support testing if an IP addres matches any prefix by simple
networks = IPNetworks(['10.0.0.0/8','192.168.0.0/16'])
'10.20.30.40' in networks #True
"""
@oskar456
oskar456 / hanoi-iter.py
Last active March 15, 2018 04:18
Hanoi towers recursive and iterative solution
#!/usr/bin/env python3
# vim: ts=4 expandtab
import sys
class Peg:
""" Stack representing one Hanoi peg. """
def __init__(self, n=0):
self.stack = []
self.stack.extend(range(1,n+1))
@oskar456
oskar456 / ifcfg-eth0
Created May 2, 2013 14:27
OpenSUSE Policy Based Routing for IPv6
BOOTPROTO='static'
IPADDR='2001:718:1:fff0:50:56ff:feef:4/64'
STARTMODE='onboot'
NAME='VMXNET3 Ethernet Controller MGMT'
PRE_UP_SCRIPT='local-disablera'
POST_UP_SCRIPT='local-postup-pbr6'
PRE_DOWN_SCRIPT='local-predown-pbr6'
LOCAL_PBR6_PRIO='40001'
LOCAL_PBR6_DEFAULTPRIO='60001'
@oskar456
oskar456 / ripe-db-demo-VM-in-KVM
Last active December 25, 2015 18:49
Run Sample RIPE DB virtual Appliance under QEMU on Gentoo Linux. Before first start, coverting VMDK to QCOW2 disk image is needed. To watch VM console, open VNC viewer to localhost:42
qemu-img convert -O qcow2 -o preallocation=off -p RIPEDB-disk1.vmdk RIPEDB-disk1.qcow2
@oskar456
oskar456 / prouting.sh
Last active June 14, 2023 22:19
A simple script to set up policy routing on linux. It's stateless and detects everything automatically, so all you have to do is to run it after every network subsystem change. I run it in postup and postdown hooks in Gentoo network configuration file.
#!/bin/bash
IP="/bin/ip"
function prepare_rt_table() {
local rttables=/etc/iproute2/rt_tables
local iface=$1
[[ "${iface}" = 'lo' ]] && return
if ! egrep -q "\s${iface}\s*"\$ $rttables; then
idx=$(wc -l <$rttables)
@oskar456
oskar456 / kmlbbox.py
Created May 9, 2014 19:49
KML bounding box
#!/usr/bin/env python3
import lxml.etree
tree = lxml.etree.parse('pl.kml')
root = tree.getroot()
ns= 'http://earth.google.com/kml/2.1'
pmarks = tree.findall('//{{{0}}}Placemark'.format(ns))
for pmark in pmarks:
coor= pmark.find('{{{0}}}Point/{{{0}}}coordinates'.format(ns))
long, lat, alt = (float(x) for x in coor.text.split(',',3))
@oskar456
oskar456 / icecast.cgi
Created June 14, 2014 16:25
MPEG TS to IceCast CGI script
#!/usr/bin/env python
import subprocess
import shlex
import sys
import signal
sys.stdout.write("""Content-Type: audio/mpeg\r
icy-br:192\r
ice-audio-info: ice-samplerate=48000;ice-bitrate=192;ice-channels=2\r
@oskar456
oskar456 / emailer.py
Last active October 31, 2016 15:10
LinuxDays e-mailer
#!/usr/bin/env python3
import email.mime.text
import email.utils
import email.header
import smtplib
import copy
import sys
import re
import argparse
@oskar456
oskar456 / czalloc.sh
Last active August 29, 2015 14:10
Czech IP allocations from RIPE NCC
#!/bin/bash
allocurl="ftp://ftp.ripe.net/pub/stats/ripencc/membership/alloclist.txt"
#The workdir have to exist and be empty! It's content will be deleted after each run.
workdir="/var/tmp/czalloc"
function alloc2lir() {
local dstdir="$1"
local lirfile=""
while read line; do
@oskar456
oskar456 / findword.py
Last active August 29, 2015 14:19
Find a word that consists of certian letters in dictionary (a.k.a. 4 Pics 1 Word helper)
#!/usr/bin/env python3
import argparse
import collections
import re
parser = argparse.ArgumentParser(
description='Find a word consisting of certain letters in dictionary'
)
parser.add_argument('letters',