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When this randomness is used up, you will encounter massive delays in the start and run time of flex.bi and other programs on your server, that's why we recommend using haveged.

Installing Haveged

  1. Use the following command to create a yum repository:

    Code Block su -c 'rpm -Uvh http://download.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-10.noarch.rpm'

    Add EPEL repository to your server following this instruction

  2. Then install Haveged and start it:

    Code Block
    yum install haveged
systemctl enable haveged
systemctl start haveged


  3. To test the amount of available entropy, you can run the following command:

    Code Block
    cat /proc/sys/kernel/random/entropy_avail