Here is a step-by-step procedure how to upgrade the JunOS image on your Juniper EX, QFX or MX device. You may get the JunOS software from the vendor, creating an account and adding your device serial number to it in order to access the software download. It is very important that you use the right… Read More »
Having the following notification on the console output after booting your Juniper EX switch? WARNING: JUNOS versions running on dual partitions are not same This might have been caused by an incomplete/failed upgrade of JunOS. Either way, unless this is the result of an action made on purpose, it is important that both slices have… Read More »
Have you lost your session profile since the last time you logged in on your Windows PC (meaning login with your user account and your settings and/or files vanished)? There might be multiple causes for that, such as you logged into a temporary profile or you joined the PC to a domain. (If this happened… Read More »
If you have encountered the following error message trying to migrate or synchronize an IMAP mailbox using the great IMAPsync.pl script : Host1: mail1.domain.tld says it has NO CAPABILITY for AUTHENTICATE LOGIN Then you may want to look at the following : – Bad credentials – Special character in the password that need to be… Read More »
If you already have a certificate generated by a certificate authority (or maybe a wildcard certificate), you can use the following procedure to configure it on your iDRAC, so you can get rid of the browser security warning. We will use the iDRAC “racadm” command line utility (if you do not have it already, you… Read More »
This issue appear to be banal, but actually consumed precious (lost) time of my day deploying a vCenter Server Appliance on an external Platform Service controller, version 6.5. At the “Install – Stage 2: Set Up vCenter Server Appliance”, you are asked for Single Sign-On infos of the PSC appliance. Clicking next, you may encounter… Read More »
VMware vCenter is now shifting toward the all in one appliance running Photon OS, a Linux container optimized operating system by VMware. Whatever you have lost your password or the deployment failed and the supplied password was not applied, you will need to reset it. To do so, simply the following procedure : 1. On… Read More »
By default, all QSFP+ ports on the EX4300 chassis are configured as virtual chassis ports (vcp). VC minimal (recommended) requirement is two ports, meaning that two out of the four ports can be used as regular 40 Gbps interfaces and/or for uplink purpose. Let’s assume we want to use the port #0 and 1 as… Read More »
Having the following issue connecting to a device using SSH after upgrading to macOS High Sierra 10.13.2? Unable to negotiate with 0.0.0.0 port 22: no matching cipher found. Their offer: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se This is an expected behavior if you attempt to connect to a legacy system or network device running older version of SSH. To workaround… Read More »
Here is how to quickly show the connected clients to a NFS server. It might be useful to know before rebooting the server! On the server, execute the following command (replace <> with the NFS server IP address) :
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netstat -an | grep <NFS.Server.IP>:2049 |
Example :
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netstat -an | grep 192.168.45.32:2049 |
You should see a similar output : tcp 0 0 192.168.45.32:2049 192.168.45.52:840… Read More »