Ubuntu doesn’t seem to process MTU path discovery the same as other operating systems. When receiving a packet larger than the MTU it stops processing at the MTU length and then determines the packet to be too short as it doesn’t match the packet header. A quick resolution to this is to lower the MTU […]
On SuperMicro motherboards you will sometimes get the following error when using certain functionality of the the IPMI config utility: ./IPMICFG-Linux.x86_64 -dhcp [kcs] kcs_error: [kcs] kcs_error_exit: This is due to a missing kernel module that is required. On CentOS you can install the kernel module with the following (note that the package name may be […]
After updating an SSL certificate on a SolusVM master installation we still receiving an error on the web console for SSL noVNC when the old certificate expired: OSStatus Error -9807: Invalid certificate chain It turns out noVNC on these installations doesn’t run through the web server. Instead change the following certificate file: /usr/local/solusvm/ssl/cert.pem This file […]
When trying to for an install (in this case a format install) of JunOS sometimes the following will occur while logged in as root: root@% install –format jinstall-YOURPACKAGE-signed.tgz /sbin/install: Permission denied. It will install correctly if install it from loader> prompt. You must have your USB drive connected before rebooting. Get there by hitting spacebar […]
When trying to add an IPv6 address to a server via the ifcfg-eth0 file resulted in the following error (redacted) upon restarting networking: RTNETLINK answers: Permission denied WARN : [ipv6_add_route] ‘No route to host’ adding route ‘::/0’ via gateway ‘XXXX:YYYY:ZZZZ::1’ through device ” This was further confirmed by trying to add the IP […]
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Traditional methods of finding the serial number on a live Linux system do not work for nvme drives. You can download the name-cli package from: https://github.com/linux-nvme/nvme-cli Once installed you will then have the “nvme” command and can find the serial number with the following command: nvme id-ctrl /dev/nvme0n1
Error upon commit (or commit check): warning: requires ‘bgp’ license This is letting you know that the Juniper device requires a special license for certain features. At the time of this post the going rate for a license for one 24-port EX4200 for one year is $2500 USD. I was told that it’s an error […]
When trying to mount a USB thumb drive in a Juniper EX3200 switch I received the following error: root@:RE:0% mount -t msdos /dev/da1s1 /var/tmp/usb mount_msdosfs: /dev/da1s1: Invalid argument The file system was FAT and everything worked fine when mounted in my workstation. I simply reformatted the FAT partition on my workstation and recopied the contents […]
I received the following error message when trying to save an email filter on a Cpanel account that had a pipe as one of the filter actions: Action #1 is invalid: action type “pipe” is unknown This I was trying to do while logged in as the user of the actual email account. When I […]