I experienced a strange issue after making some configuration changes to a Juniper MX104 device with a MS-MIC-16G installed. After removing some NAT rules the services interface that the NAT service was attached to started doing a large amount of traffic. The same change was made on a second router […]
Read moreRecently Juniper has released version 18.2R1 of the vSRX appliance. When I have tried to deploy the OVA file on an ESXi 6.7 host the deployment failed. The first indication of an issue is on step 5 of creating a new virtual machine, the deployment type shows as “undefined – […]
Read moreping6 can be used on Linux hosts to ping the “allhosts” address, ff02::1. If you try running ping6 ff02::1 with no arguments you will get an error like connect: Invalid argument, instead you must provide the interface to ping from with the -I argument. As an example, to ping all […]
Read moreIn my network, a Juniper SRX cluster handles all DHCP leases (via an IP helper configured on the switches with DHCP snooping). These are the steps I used to get the DHCP server for SRX devices to work for Windows Deployment Services. Main DHCP Configuration The following configuration is set […]
Read moreAfter I have deployed the vMX on a CentOS 7.4 host that has an IPv6 address for management, I noticed that IPv6 stopped working when the vMX was started. In my case, the IPv6 address was originally on the interface bond0. When the vMX starts a bridge interface is created […]
Read moreAfter upgrading Unifi on a Debian server running a Ubiquiti Unifi controller, I ran into an issue where the web interface would not load. After poking through the logs I found that the issue appeared to be with MongoDB. In the server log file located at /var/log/unifi/server.log for my install […]
Read moreQuite often people scan for WordPress installs by checking to see if a HTTP request can be made to /xmlrpc.php. Since I do not run WordPress at all it is low hanging fruit to block the source IP that makes a HTTP request for that to my web servers. The […]
Read moreBy default, the Ubiquiti Unifi controller runs on port 8443 for inbound HTTPS requests to the web interface. I instead wanted to change this to listen on the standard HTTPS port (443) and I wanted my own valid SSL to be used to access the web interface. The easiest way […]
Read moreWhile managing a virtual chassis for 4 QFX5100 devices, I managed to create an inconsistent state between the virtual chassis members. When committing the configuration, the following error would show: I tried a few things to fix this at first, eg. removing the IRB interface in question then trying to […]
Read moreWhen starting a Juniper vMX router you may get an error from the vMX.sh script that shows that the libvirt files could not be generated followed by “setlocale: No such file or directory” one or more times. The error looks like this: Ensure that both the hosts’s locale and your […]
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