1、从网上下载了NTOP3.3，解压缩直接安装 （./autogen.sh --prefix=/usr/local/ntop3 --disable-ipv6)会报如下错误：
Test the compiler and setup CFLAGS...
checking if compiler accepts -W (warning flags)... yes
Critical library/include tests...
checking for pcap_lookupdev in -lpcap... no
*** FATAL ERROR ***
It looks that you don't have the libpcap distribution installed.
Download, compile and, optionally, install it.
When finished please re-run this program.
You can download the latest source tarball at
configure: error: The LBL Packet Capture Library, libpcap, was not found!
[root@testggv ntop-3.3]#
安装LIBpcp 时遇到的问题：
checking if sockaddr_storage struct exists... yes
checking if dl_hp_ppa_info_t struct has dl_module_id_1 member... no
checking if unaligned accesses fail... no
checking for a BSD-compatible install... /usr/bin/install -c
configure: creating ./config.status
config.status: creating Makefile
config.status: WARNING: Makefile.in seems to ignore the --datarootdir setting
config.status: creating config.h
[root@testggv libpcap-0.9.8]# make
gcc -O2 -fPIC -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -c ./pcap-li
nux.c
gcc -O2 -fPIC -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -c ./fad-get
ad.c
In file included from ./fad-getad.c:67:
/usr/include/linux/if_packet.h:52: error: expected specifier-qualifier-list befo
re 鈥榑_u32鈥
檓ake: *** [fad-getad.o] Error 1
解决：在/usr/include/linux/if_packet.h加入 #include
然后再接着安装ntop,安装好NTOP后，做如下的设置：
1、chown -R nobody.nobody /usr/local/nto/share/ntop
2、/usr/local/ntop/bin/ntop -P /usr/local/ntop/share/ntop -u nobody -A
(说明：-P：指定.db档存放路径 -u:指定service 启动user A 设定管理员与密码，默认都是:admin,第一次启动的时候需要输入,往后启动不需要要输入,默认端口是3000 或/usr/local/ntop/bin/ntop -P /usr/local/ntop/share/ntop -u nobody -m 192.168.92.0/24 只监控192.168.92.0这个网段)
3、拷贝配置文件模板
cp /usr/local/src/ntop-3.3/packages/RedHat/ntop.conf.sample /etc/ntop.conf
注意几个选项：--user nobody
--daemon
--db-file-path /usr/local/ntop/share/ntop
--interface eth0
--no-mac
--m 123.127.71.128
--trace-level 3
--http-server 3000
--disable-schedyield
最后启动的时候，可以这样/usr/local/ntop/bin/ntop @/etc/ntop.conf 呵）
（安装中可能遇到的问题：
1、NTop can't find libntoprepot-3.2.so 解决办法/sbin/ldconfig /usr/local/bin/ntop
本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u2/88611/showart_1734994.html
