/var/log/syslog {
    # don't use time based rotation, but size-based
    size 10M
    # do not keep old files at all
    rotate 0
    # don't use compression
    nocompress
    postrotate
        service rsyslog reload >/dev/null 2>&1 || true
    endscript
}

/var/log/auth.log {
    # don't use time based rotation, but size-based
    size 10M
    # do not keep old files at all
    rotate 0
    # don't use compression
    nocompress
    postrotate
        service rsyslog reload >/dev/null 2>&1 || true
    endscript
}
