tar -zxvf nfdump-1.6.13.tar.gzcd nfdump-1.6.13 whereis rrdtool rrdtool: /usr/bin/rrdtool /usr/lib64/rrdtool /usr/share/rrdtool /usr/share/man/man1/rrdtool.1.gz./configure --prefix=/opt/nfdump --enable-nfprofile --enable-sflow --enable-nftrack --with-rrdpath=/usr/binautoreconfmakemake install cp bin/nftrack /opt/nfdump/bin/vi /etc/profileexport PATH=/opt/nfdump/bin/:$PATH:wq!source /etc/profileexitloginnfcapd --helpsfcapd --help