sagan --debug syslog,engine
[E] [config-yaml.c, line 1316] Sagan was not compiled with libpcap support!
yum install pcre-devel libyaml-devel liblognorm liblognorm-devel libfastjson libfastjson-devel GeoIP GeoIP-devel GeoIP-data wget libpcap libpcap-devel git autogen gcc clang libtool autoconf autoreconf automake