Файл moduli в /etc/ssh

гонишь :)

MODULI(5)                   BSD File Formats Manual                  MODULI(5)

NAME
     moduli -- Diffie Hellman moduli

DESCRIPTION
     The /etc/ssh/moduli file contains prime numbers and generators for use by sshd(8) in the Diffie-Hellman Group Exchange key exchange
     method.