In such a crisis if installing tools is impossible, you can run many utils via Docker, such as:

Build a container with a one-liner:

docker build -t tcpdump - <<EOF \nFROM ubuntu \nRUN apt-get update && apt-get install -y tcpdump \nCMD tcpdump -i eth0 \nEOF

Run attached to the host network:

docker run -dP --net=host moremagic/docker-netstat

Run system tools attached to read host processes:

for sysstat_tool in iostat sar vmstat mpstat pidstat; do alias "sysstat-${sysstat_tool}=docker run --rm -it -v /proc:/proc --privileged --net host --pid host ghcr.io/krishjainx/sysstat-docker:main /usr/bin/${sysstat_tool}" done unset -v sysstat_tool

Sure, yum install is preferred, but so long as docker is available this is a viable alternative if you can manage the extra mapping needed. It probably wouldn’t work with a rootless/podman setup.