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Requirements:

• Raspberry Pi (I used the B+ model)
• Enough hard drive space for install media (I mounted a 16 GB USB3 drive at /var/www/cobbler/)

Installation

The problem with installing cobbler on a Raspberry Pi, is that it depends on the syslinux package, which is not available for ARM architectures. More importantly, we specifically need the x86 version of syslinux anyway, because it provides the files that will be used to PXE boot systems (which in my case is x86_64 arch).

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#!/bin/bash

cat - | sed 's/^#[a-z]*s[^a-z]//' | gawk -vOFS='\t' -vT_LEN="$T_LEN" 'BEGIN {FS="\t" }; {for(i=1;i<=NF;i++) {  printf("\x1b[%sm%s\t\x1b[0m",(i%7)+31,$i) } ;print ""}'

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event protocol_confirmation (c: connection, atype: Analyzer::Tag, aid: count)
{
  if ( atype == Analyzer::ANALYZER_SMTP )
  {
    local both_file = generate_extraction_filename(Conn::extraction_prefix, c, "both.dat");
    local both_f = open(both_file);
    set_contents_file(c$id, CONTENTS_BOTH, both_f);
  }
}

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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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Change Default Kernel in EL7

Following command can be used to list the kernels in centos 7

# egrep ^menuentry /etc/grub2.cfg | cut -f 2 -d \'
Linux Server, with Linux 3.10.0-123.el7.x86_64
Linux Server, with Linux 3.10.0-123.4.4.el7.x86_64
Linux Server, with Unbreakable Enterprise Kernel 3.8.13-35.3.2.el7uek.x86_64
Linux Server, with Unbreakable Enterprise Kernel 3.8.13-35.3.1.el7uek.x86_64

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ps -ef | grep bin/bro | awk '{ print $2  }' | xargs -n1 kill -9

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# Install epel
sudo yum -y install epel-release

# Install kernel headers for current kernel
sudo yum install -y kernel-devel-$(uname -r) kernel-headers-$(uname -r)

# Install ntop repos
cat << EOF | sudo tee /etc/yum.repos.d/ntop.repo
[ntop]
name=ntop packages

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# Put this into /etc/sysctl.d/90-interfaces.conf for each interface (below is for interface 'eno3')
net.ipv6.conf.eno3.disable_ipv6=1
net.ipv6.conf.eno3.autoconf=0

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This GDB was configured as "x86_64-unknown-linux-gnu"...

      KERNEL: /usr/lib/debug/lib/modules/3.10.0-229.el7.x86_64/vmlinux
    DUMPFILE: /var/crash/127.0.0.1-2015.10.20-22:22:58/vmcore  [PARTIAL DUMP]
        CPUS: 24
        DATE: Tue Oct 20 22:22:51 2015
      UPTIME: 00:16:49
LOAD AVERAGE: 0.00, 0.01, 0.04
       TASKS: 355
    NODENAME: reciever2

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##! Basic POP3 analyzer
# From here: https://github.com/albert-magyar/bro/blob/topic/pop3/scripts/base/protocols/pop3/main.bro

@load base/utils/numbers
@load base/utils/files

module POP3;

export {
    redef enum Log::ID += { LOG };