Ensure udp_pmtu_discover is disabled

SrednjaNivo 1Automatskaaix

Opis

The udp_pmtu_discover parameter controls whether MTU discovery is enabled. The udp_pmtu_discover parameter will be set to 0. The idea of MTU discovery is to avoid packet fragmentation between remote networks. Audit: `no -o udp_pmtu_discover` must report 0.

Kako se proverava

Metod provere: Komanda ljuske

shell

command -v no >/dev/null 2>&1 || exit 1; out=$(no -o udp_pmtu_discover 2>/dev/null) || exit 1; printf '%s\n' "$out" | sed 's/[[:blank:]]*=[[:blank:]]*/=/'

Očekivani izlaz: udp_pmtu_discover=0

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

no -p -o udp_pmtu_discover=0 (sets the running value and makes it persistent in /etc/tunables/nextboot)

Svojstva

Operativni sistemi: Bilo koji
Oznake: aixhardening
Referenca: CIS IBM AIX 7 Benchmark v1.2.0 - 4.5.18 Ensure udp_pmtu_discover is disabled

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target aix