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#!/bin/sh

dd if=/dev/random bs=15 count=1 2>/dev/null | od -D | cut -c 15- | tr -d ' ' | head -1

# alias pin4="dd if=/dev/random bs=15 count=1 2>/dev/null | od -D | cut -c 15- | tr -d ' ' | head -1 |cut -c 1-4" 
# alias pin6="dd if=/dev/random bs=15 count=1 2>/dev/null | od -D | cut -c 15- | tr -d ' ' | head -1 |cut -c 1-6"
# alias pin8="dd if=/dev/random bs=15 count=1 2>/dev/null | od -D | cut -c 15- | tr -d ' ' | head -1 |cut -c 1-8"

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Updating a HP(E) server from iLO 3 version 1.55 to version 1.94

This short document explain how to resolve the issues arising when trying to update an old (Gen7) HP(E) server to the most recent iLO 3 (HPE Integrated Lights-Out) version, which solves a great number of security and usability issues.

Issues

• Can't connect to iLO with a modern browser, for lack of supported TLS protocol version
  • solved by using FirefoxPortable version 31
  • and in the Firefox31 portable configuration, in the about:config settings, set security.tls.version.min (the minimum acceptable version of the TLS protocol) to 0 in order to be able to negociate down to TLS 1.0 (even if iLO 3 can do 1.1). Keep in mind your browser is now (even more) vulnerable to a host of attacks, do not connect to any potentially hostile host with it.
• in the iLO web console, checking the option "Enforc

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# creates a groupadd sequence reproducing the GIDs of groups created on a machine
# in order to replicate it

cut -f1,3 -d: /etc/group | awk -F ':' '{print "\n# creating group " $1 "\n" "groupadd -g " $2 " " $1}'

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apt-get update failing because of a missing GPG key

The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 089EBE08314DF160

Fix: import the GPG key

Issue: must go through port 80 or 443 to pass firewall permissions, thankfully ubuntu keyserver listens on 80 too, so by specifying the port 80 in the HKP server URL we can get through.

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Listing the content of a PKCS#12 container

openssl pkcs12 -info -noout -in file.p12

or

keytool -list -storetype pkcs12 -v --keystore file.p12

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From the Hacker News comment https://news.ycombinator.com/item?id=23778922

In case anyone else needs this:

systemctl edit units-currency-update.service

[Unit]
Description=Update units(1) currency rates
 

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Notes

• https://sites.google.com/site/ramaswamyr/article/parsing-asn-1
• http://www.nongnu.org/grammatica/grammar/asn1.grammar (seriously can a a grammar defined in an ISO standard even be GPLed?)
• http://openmirage.org/blog/introducing-asn1
• http://luca.ntop.org/Teaching/Appunti/asn1.html A Layman's Guide to a Subset of ASN.1, BER, and DER

Existing ASN.1 compilers

• https://github.com/ttsiodras/asn1scc Generates C and ADA, dual licence LGPL and commercial

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// http://security.stackexchange.com/questions/102703/help-generating-wordlist-using-crunch
// I need to configure crunch so that it produces a wordlist with the following set of rules:
//
//     Exactly 10 characters long
//     Contains exactly 4 letters, which have to be a-f (all lowercase)
//     Contains exactly 6 numbers, which have to be 2-9
//     The letters and numbers can be anywhere in the word
//
// Is there any way to add a function to that program that disallows character repetition above 2?

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// http://security.stackexchange.com/questions/102703/help-generating-wordlist-using-crunch
// I need to configure crunch so that it produces a wordlist with the following set of rules:
//
//     Exactly 10 characters long
//     Contains exactly 4 letters, which have to be a-f (all lowercase)
//     Contains exactly 6 numbers, which have to be 2-9
//     The letters and numbers can be anywhere in the word
//

fn all_words(prefix: &str, letters: u32, numbers: u32) {

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To display UTF-8 properly in Windows PowerShell ISE (PowerShell 3), downloadable at
http://www.microsoft.com/en-us/download/details.aspx?id=40855

Type the following command at the prompt :

[System.Console]::OutputEncoding = [System.Text.Encoding]::UTF8