Recently I upgraded the iDRAC on a Dell R730 with an iDRAC 8 and had a strange issue – the iDRAC went into a reboot loop. The firmware upgrade initially was from 2.50.50.50 to 2.52.52.52. After the upgrade the iDRAC could be accessed for short periods of time via web […]
Read moreSometimes you need to execute commands on the secondary node. To do this you can open a session to the remote node from the primary using the command request routing-engine login node X where X is the node ID to login to. As an example: Transferring Files Files can also […]
Read moreMy 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 […]
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