Debian and Bluetooth Headphones
My default Debian install had an issue with the headphones not working. To resolve it I needed to install the pulse audio bluetooth module and restart the service:
Read moreNetworking, system administration and more
Networking, system administration and more
Networking, system administration and more
My default Debian install had an issue with the headphones not working. To resolve it I needed to install the pulse audio bluetooth module and restart the service:
Read moreSome load balancers may require you to create a loopback interface on a Windows server or servers. The loopback device then gets the load balanced IP added to it; that IP is used for the inbound load balanced connections. The loopback adapter is used so that no ARP replies are […]
Read moreThese are the steps I used to get the Juniper SRX user firewall feature working with Active Directory. The end result is I can apply firewall policies based on the username of a user or the group of a user. NOTE: JunOS 17.4R1 or above is required for this feature […]
Read moreThese are the steps I used to upgrade a Juniper vSRX cluster with minimal downtime. The Juniper vSRX cluster was running on ESXi, the upgrade was from 15.1X49-D120.3 to 17.4R1. The upgrade was done to get some new features for the user firewall (IPv6 support). The basic cluster upgrade process […]
Read moreThe following commands will show you the current TCAM usage on a QFX series switch. Especially for QFX5100 devices, the TCAM is very small and only a limited number of firewall filters can be installed. If the TCAM is full you will have issues such as the loopback firewall filter […]
Read moreMy Juniper SRX devices are configured to send packet captures to a Linux server for further analysis. I have the Linux server exporting its share via NFS which I mount on my PC, that allows me to then browse through the packet captures of attacks using my PC directly and […]
Read moreTo install the Juniper vSRX appliance on ESXi 6/6.5, the following things needed to be done. Initial Installation/VM Setup Deploy the OVA file as usual. Once the OVA has been deployed, edit the VM settings (right click the VM -> Edit Settings). Make sure you are using the Flash client […]
Read moreThere are a few common issues I have ran into when running the vSRX appliance. JunOS Console Doesn’t Show If the JunOS console does not show at all (all you see is a “Windriver Linux” screen on the console) usually the cause will be the VM’s CPU configuration. If the […]
Read moreThe following IDP rule will block SSH brute force attacks. It will be triggered by more than 3 consecutive SSH connections in a row. After the rule has been triggered, the source IP will be banned for a period of 1 hour and the connection to both the client and […]
Read moreThe following settings should be used on Linux devices with a SSD. The instructions are Debian specific and taken from the SSDOptimization page on the Debian wiki. Automatic Trim/Mount Options Make sure the file system(s) are mounted with these options: discard,noatime,defaults As an example: Scheduler Set the scheduler for the […]
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