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Posted April 19, 2021April 19, 20211 CommentPosted in ServerServer

Linode Longview with MariaDB 10.5+

At the time of writing, the Linode Longview agent is not working with MariaDB 10.5 onwards. This happens because there is a hard coded binary name in the Perl script responsible for determining if MySQL monitoring is required; from MariaDB 10.5 the binary name has changed from mysqld to mariadbd. […]

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Posted April 14, 2021April 15, 2021Leave a commentPosted in Security, WindowsSecurity, Windows

Active Directory Password Cracking

These are the steps I use to get a dump of all password hashes from a domain controller and then crack the hashes with hashcat or john. Excluding the dumping of password hashes, these steps are all executed on a Linux host. If you are trying to do this completely […]

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Posted April 10, 2021April 15, 2021Leave a commentPosted in Networking, Puppet/RubyNetworking, Puppet/Ruby

Puppet – Aggregate, resolve, validate and filter IP addresses

When working with lists of IP’s with Puppet there are some common tasks that you will most likely encounter: Aggregate IP’s – As an example, if you have a firewall rule and the source list is like this: That list can be condensed into a single rule for only 192.0.2.0/24. […]

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Posted April 3, 2021April 10, 2021Leave a commentPosted in LinuxLinux

Linux Interface Names

For convenience I like to name the interfaces for my desktop/laptop in an easy to remember convention so that I don’t need to think about what the interface names are at all when running things like tcpdump. The best way I have found to do this is with udev rules. […]

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Posted April 3, 2021April 10, 2021Leave a commentPosted in Desktop, LinuxDesktop, Linux

KDE Plasma Thermal Monitor “Off”

The KDE Plasma Thermal Monitor widget has an annoying issue where the temperature sources will sometimes show as “Off” after rebooting. This seems to have broken around Ubuntu Groovy for me. This is a well known issue as referenced on the KDE forum among other places. To fix, I edited […]

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Posted April 3, 2021April 15, 2021Leave a commentPosted in Python, ScriptingPython, Scripting

Scapy – DNS queries with EDNS

To debug some issues with DNS (specifically EDNS related issues) I thought I would use Scapy so that I could craft the packets the exact way I wanted. As the issue was only occurring for some queries but not others due to the queries being sent to different front end […]

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Posted January 2, 2019April 17, 2021Leave a commentPosted in JuniperJuniper

Access Juniper vSRX Wind River Host

The Juniper vSRX uses nested virtualization to run. The host OS is Wind River Linux, assuming you are running this on ESXi you can see the host OS if you push Alt + F2 to access a separate terminal. For troubleshooting or if you are interested in further information about […]

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Posted December 18, 2018April 15, 2021Leave a commentPosted in MX/vMXMX/vMX

Juniper vMX – Ubuntu 16.04 KVM Host Setup

NOTE: I originally published this page in 2018; instructions may now be out of date. While looking at the Juniper vMX documents recently, I noticed that support has now been added for Ubuntu 16.04 with kernel 4.4.0-62-generic (see Table 2). Since I personally prefer using Debian over RHEL systems, I […]

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Posted December 18, 2018April 17, 2021Leave a commentPosted in MX/vMXMX/vMX

Juniper vMX – i40e Module Upgrade

NOTE: I originally published this page in 2018; instructions may now be out of date. Juniper has provided an updated copy of the i40e module to resolve the “PF reset” issues that occur on vMX routers when using SR-IOV. The new driver release is version 2.4.101. IMPORTANT: At the time […]

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Posted December 5, 2018April 15, 2021Leave a commentPosted in MX/vMXMX/vMX

Juniper vMX – Dual Routing Engine Setup

NOTE: I originally published this page in 2018; instructions may now be out of date. Recent releases of the Juniper vMX (18.1 onwards) support dual routing engines when using KVM as the virtualisation technology. One or both of the routing engines do not need to be configured on the same […]

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