Networking, system administration and more
Networking, system administration and more
After making a change to a GitLab configuration file I ran the gitlab-ctl reconfigure command and got this error: GitLab is managing the SSL certificates from LetsEncrypt using ACME in this case. Checking the existing certificate I could see that it was working up until recently so it seems to […]
Read moreAccessing the Java Dell iDRAC 6 virtual console in 2021 is very painful; various Java security enhancements have ensured that the legacy iDRAC console connections will no longer be working. To fix this there is a simple work around – the old encryption algorithms need to be allowed in the […]
Read moreWhile updating some servers I ran into an issue when updating the available packages. These servers are using the third party repository packages.sury.org to get alternative PHP releases. The error was: Some sources suggested replacing the GPG key in /etc/apt/trusted.gpg.d/php.gpg: [SOLVED] The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic […]
Read moreAfter ugrading Kubuntu 20.10 (Groovy) to 21.04 (Hirsute), I started getting the following error when trying to build any Docker containers: Various Googling pointed to the result; simply installing the gnome-keyring package resolved the problem: After doing that everything worked as expected. EDIT: After using the OS some more, I […]
Read moreAt the time of writing, the Linode Longview agent is not working with MariaDB 10.5 onwards. This happens because there is a hard coded binary name in the Perl script responsible for determining if MySQL monitoring is required; from MariaDB 10.5 the binary name has changed from mysqld to mariadbd. […]
Read moreWhen attempting to install a Juniper vMX router (release 18.3R1-S1.4) on a newly installed Centos 7.2 host I got the following error: When I checked the supported machine types with /usr/libexec/qemu-kvm -machine help everything looked fine, pc-i440fx-rhel7.0.0 was listed as the default: The error gmem.c:489: custom memory allocation vtable not […]
Read moreUPDATE: A new copy of the i40e driver has been provided by Juniper (unofficially). You can try this at your own risk, see here for details. When using a Juniper vMX with a Intel X520 or Intel X710 based card and SR-IOV, under load the vFPC may crash. This seems […]
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 moreDuring an install of the Network Policy and Access Services role on a server I was getting the error code 0x800f0922 and the installation was failing. The error from the Add Roles and Features wizard looked like this: To install it instead I had to run the following commands from […]
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 […]
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