Forkbomb testing service

forkbomb.c

#include <unistd.h>

int main() {
    while (1) fork();
}

forkbomb.service

# This service is for conveniently testing your own forkbombs.
# Don't expect it to do real security.

# 1. Update the ExecStart line to your own executable path.
# 2. Install (e.g. symlink) as /etc/systemd/system/forkbomb.service
# 3. sudo systemctl start forkbomb.service
# 4. Verify lots of processes.  Optionally, view the log with journalctl.
# 5. sudo systemctl stop forkbomb.service
# 6. Resume computing with sanity intact.

[Unit]
Description=Forkbomb tester

[Service]
CPUShares=100
MemoryLimit=1M
LimitNPROC=100
CapabilityBoundingSet=~CAP_SYS_RESOURCE
NoNewPrivileges=true
KillSignal=SIGKILL

StandardOutput=journal
User=nobody
ExecStart=/home/psimonyi/tmp/forkbomb