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SwitHak /
Last active June 10, 2024 08:32
BlueTeam CheatSheet * Log4Shell* | Last updated: 2021-12-20 2238 UTC

Security Advisories / Bulletins / vendors Responses linked to Log4Shell (CVE-2021-44228)

Errors, typos, something to say ?

  • If you want to add a link, comment or send it to me
  • Feel free to report any mistake directly below in the comment or in DM on Twitter @SwitHak

Other great resources

  • Royce Williams list sorted by vendors responses Royce List
  • Very detailed list NCSC-NL
  • The list maintained by U.S. Cybersecurity and Infrastructure Security Agency: CISA List
joschi / graylog_token.txt
Last active September 28, 2023 04:27
Graylog access token login
# Create an access token for user "admin" with name "test-1234"
# POST /users/{username}/tokens/{name}
$ curl -i -u admin:admin -H 'Accept: application/json' -X POST ''
HTTP/1.1 200 OK
X-Graylog-Node-ID: cd03ee44-b2a7-4824-be16-bb7456149dbd
Content-Type: application/json
Date: Mon, 08 Aug 2016 12:12:09 GMT
Content-Length: 139
scottslowe / ubuntu-1404-preseed
Created May 20, 2015 17:49
This is a preseed file, written for Ubuntu Server 14.04.2, that provides a fully automated installation (assuming the presence of a PXE boot infrastructure and a local HTTP server to provide the installation files).
# Ubuntu Server automated installation
# by Scott Lowe (
d-i debian-installer/locale string en_US
d-i console-setup/ask_detect boolean false
d-i keyboard-configuration/layoutcode string us
d-i netcfg/choose_interface select eth0
d-i netcfg/get_hostname string hostname
d-i netcfg/get_domain string
d-i netcfg/wireless_wep string
finalfantasia /
Last active March 20, 2024 22:53
Fixing Text Anti-aliasing in Fedora
  1. Add the RPMFusion repositories (both free and non-free) to the YUM repository directory (/etc/yum.repos.d/):
sudo dnf localinstall --nogpgcheck$(rpm -E %fedora).noarch.rpm$(rpm -E %fedora).noarch.rpm
  1. Install the patched version of FreeType with subpixel rendering enabled:
sudo dnf install -y freetype-freeworld
tristanfisher / Ansible-Vault
Last active June 11, 2024 13:23
A short tutorial on how to use Vault in your Ansible workflow. Ansible-vault allows you to more safely store sensitive information in a source code repository or on disk.

Working with ansible-vault

I've been using a lot of Ansible lately and while almost everything has been great, finding a clean way to implement ansible-vault wasn't immediately apparent.

What I decided on was the following: put your secret information into a vars file, reference that vars file from your task, and encrypt the whole vars file using ansible-vault encrypt.

Let's use an example: You're writing an Ansible role and want to encrypt the spoiler for the movie Aliens.

cwacek /
Last active January 17, 2022 21:26
A description of how to make Cobbler, PXE, and UEFI behave for Red Hat Enterprise Linux 6 installations

UEFI PXE Installation of RHEL6.4

For some reason, starting a PXE boot installation of RHEL6.4 on UEFI systems is poorly documented. Simultaneously, the process is not terribly verbose when it fails. Here's what I had to do to get this to work.

We going to use Cobbler to take care of a lot of the gruntwork (TFTP, DHCP, etc). It's entirely possible to do it without Cobbler, but even accounting for its warts it will make you more