sjas

Installing Ubuntu 16.04 with btrfs using debootstrap

Partition layout

First, create a GPT partition table.

1. boot partition, label: EFI, flags: boot + ESP; size: 1GB, format to FAT32;
2. root partition (label: root), must same size on all devices!
3. swap partition.

sjas

package main

import (
	"net/http"
	"database/sql"
	"fmt"
	"log"
	"os"
)

sjas

class DotGenerator(Visitor):
    def __init__(self):
        super().__init__()
        self.lines = []
        self.next_id = 0

    def make_name(self, node, name=None):
        if name is None:
            name = "n%d" % self.next_id
            self.next_id += 1

sjas

channel operator quick reference

direct discussion about administrative action away from the main channel and into #reddit-diabetes-ops to minimise disruption. our -ops channel is the place where users should come to ask for our help. examples:

• any sort of operator request or discussion of channel administration in the main channel
• PMs asking why a ban was set
• reports of harassment (unless the user is confiding in you)
• any request for operator action

changing channel access permissions

sjas

tl;dr:

• mostly, hosts ignore the mss sent
• most of the interesting behaviour comes from the extremes: mss=1 and mss=1440
• setting mss=(an atypical value, say 1275 or 1411) ought to spot hosts that simply reflect MSS values
• setting mss=1024 apparently will spot a bunch of (Microsoft?) hosts returning MSS=956
• passively, mss=1220, 1360, 1410 may help identify CDN/non-CDN nodes inside yahoo/edgecast, google, facebook respectively

Longer version: captured SYN+ACK+MSS values:

Variation is less than I initially thought; just enough for me to notice

sjas

This is an approach to generate dynamically a JSON representation of an OID tree (=an(y) SNMP MIB) using mibdump.py of python pysmi.

We will generate a flat list of OID objects (oid_catalog.json) + hierarchical json tree (oid_tree.json) with "."-separated nodes of RFC 1213 MIB.

1. Setup + get MIB(s) as JSON

$ pip install pysmi
# walk into and/or create a new directory you run the following command in
$ mibdump.py --destination-format=json --generate-mib-texts --build-index --mib-stub= RFC1213-MIB

sjas

import argparse
from mock import Mock

m = Mock()

parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers()

query_group = subparsers.add_parser('query')
add_group = subparsers.add_parser('add')

sjas

m() {
        dpkg -s dialog &>/dev/null || { echo "Needs 'dialog' package which is not installed on this system!" && return; }
        [[ $# -lt 1 ]] && echo 'Man page name consisting of a single word expected but not given.' && return
        MANPAGE=$1
        [[ -n $2 ]] && DEFAULTCHOICE=$2 || DEFAULTCHOICE='0'
        man $MANPAGE > /dev/null 2>&1 || { echo $MANPAGE man page not present on this system!; return; }
        mapfile -t OUTLINE < <(PAGER=cat man $MANPAGE | grep ^\\w | grep -v -e AUTHORS -e COPYRIGHT | sed '1d;$d')
        RESULTSIZE=$(echo ${#OUTLINE[*]})
        CHOICE=$(
                dialog --keep-tite --default-item "$DEFAULTCHOICE" --menu "$(

sjas

###################################################################################################################
# 0x00 - basics
###################################################################################################################
if [ -f /etc/bash_completion ] && ! shopt -oq posix; then
    . /etc/bash_completion
fi
export PROMPT_COMMAND=echo
export PS0='\n'
export PS1='$( i=$?; if [ $i -eq 0 ]; then echo \\\[\e[32\;1m\\\]$i; else echo \\\[\e[31\;1m\\\]$i; fi )\[\e[0m\] \u@\h \[\e[33;1m\]\t\[\e[0m\] \w$(if git status 2>/dev/null | grep -q "nothing to commit"; then echo \\\[\e[32m\\\]; else if git status 2>/dev/null | grep -qi -e "^Changes not staged for commit" -e "^Untracked files:"; then echo \\\[\e[31m\\\]; else if git status 2>/dev/null | grep -q "to be committed"; then echo \\\[\e[36m\\\]; else echo \\\[\e[35\;1m\\\]; fi; fi; fi)$(__git_ps1)\[\e[0m\] \[\e[37;1m\]\$\[\e[m\]\[\e[36;1m\]$SHLVL \[\e[m\]\[\e[37;1m\]h\[\e[m\]\[\e[36;1m\]\! \[\e[m\]\[\e[37;1m\]c\[\e[m\]\[\e[36;1m\]\# \n\[\e[m\

sjas

10:15 <SoulRaven> i have this usb passthru
10:15 <SoulRaven> https://pastebin.com/8xrB1BTr

lxc.cgroup.devices.allow: c 189:* rwm
lxc.mount.entry: /dev/bus/usb/004/002 dev/bus/usb/004/002 none bind,optional,create=file
lxc.mount.entry: /dev/ttyUSB0 dev/ttyUSB0 none bind,optional,create=file10:15 

10:16 <SoulRaven> for a serial to usb converor
10:16 <SoulRaven> but i can't get it working right
10:16 <SoulRaven> when i do on cat: can't open '/dev/ttyUSB0': Operation not permitted