Linux - Fedora
* [When a normal dnf update fails](linux/fedora_dnf/README.md)
* [System upgrades with dnf and what to do if it failes](linux/fedora_dnf_version_upgrade/README.md)
* [dnf and error: rpmdbNextIterator: skipping](linux/fedora_dnf_rpmdbNextIterator/README.md)


Linux and PyTorch distributed:
* [Check if the port for torchrun is open via ncat](pytorch/check_for_open_port/README.md)
* [torchrun for multi-node but single GPU -- checking for network problems](pytorch/torchrun/README.md)