, . selenium , , java SecureRandom , /dev/random , . /dev/random /dev/urandom, selenium :
sudo mv /dev/random /dev/random.real
sudo ln -s /dev/urandom /dev/random
$JAVA_HOME/jre/lib/security/java.security :
securerandom.source=file:/dev/random
securerandom.source=file:/dev/urandom
, , .