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Jeff Courteau

Jeff Courteau

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A real world “bit flip” case

We often say in IT that it either works or not. That it’s “1” or “0”. In the past few days, I encountered this “once in a lifetime” case, where a wierd application problem had to be drilled down to the binary level to be diagnosed and solved. How lucky am I? Cisco ACI IP… Continue reading A real world “bit flip” case

Published 2022-05-19
Categorised as Blog articles Tagged ACI, Bit flip, Cisco, iperf3, Network, PacketCapture, tcpdump

VLAN trunks on RHEL 8

Last week, I had to configure a new KVM hypervisor running on a Red Hat Enterprise Linux 8.5 server that would host VMs from multiple VLANs/subnets. This type of configuration is pretty easy to do in VMWare ESX, having a virtual switch trunked to the physical world. But in RHEL-based distributions, if you want to… Continue reading VLAN trunks on RHEL 8

Published 2022-04-15
Categorised as Blog articles Tagged Linux, Network, OpenSource, RHEL

Recent Posts

  • Enabling nested virtualization in RHEL 9
  • A real world “bit flip” case
  • Making clamd work with Exim on Red Hat
  • VLAN trunks on RHEL 8
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