Networking, system administration and more
Networking, system administration and more
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. […]
Read moreThese 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 […]
Read moreWhen 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. […]
Read moreFor 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. […]
Read moreThe 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 […]
Read moreTo 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 […]
Read moreThe 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 […]
Read moreNOTE: I originally published this page in 2018; instructions may now be out of date.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 […]
Read moreNOTE: I originally published this page in 2018; instructions may now be out of date.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 […]
Read moreNOTE: 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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