Ubuntu 16.04安装snort含问题解决
源码方式安装
wget https://www.snort.org/downloads/snort/daq-2.0.6.tar.gz
tar xvzf daq-2.0.6.tar.gz
cd daq-2.0.6
./configure && make && sudo make install
wget https://www.snort.org/downloads/snort/snort-2.9.15.tar.gz
tar xvzf snort-2.9.15.tar.gz
cd snort-2.9.15
./configure --enable-sourcefire && make && sudo make install参考：https://www.snort.org/#get-started CentOS Fedora FreeBSD可以参考上方官方文档安装
安装过程中常见问题
1.安装daq时遇到
configure: error: Your operating system's lex is insufficient to compile libsfbpf. You should install both bison and flex. flex is a lex replacement that has many advantages, including being able to compile libsfbpf. For more information, see
http://www.gnu.org/software/flex/flex.html
解决方式
CentOS
yum install flex bison -y
Ubuntu
apt-get install flex bison
2.安装snort时时遇到
ERROR! Libpcre header not found. Get it from
http://www.pcre.org
解决方式
Ubuntu：sudo apt-get install libpcre3-dev
CentOS：sudo yum install pcre-devel
3.安装snort时遇到
ERROR! dnet header not found, go get it from
http://code.google.com/p/libdnet/or use the --with-dnet-* options, if you have it installed in an unusual place
解决方式
wget https://nchc.dl.sourceforge.net/project/libdnet/libdnet/libdnet-1.11/libdnet-1.11.tar.gz
tar -zxf libdnet-1.11.tar.gz
cd libdnet-1.11
./configure && make && make install4.安装snort时遇到
ERROR! LuaJIT library not found. Go get it from
http://www.luajit.org/(or) Try compiling without openAppId using '--disable-open-appid'
解决方式：
sudo wget http://luajit.org/download/LuaJIT-2.0.5.tar.gz
sudo tar -zxvf LuaJIT-2.0.5.tar.gz
cd LuaJIT-2.0.5/
sudo make && sudo make install5.运行snort时遇到
snort: error while loading shared libraries: libdnet.1: cannot open shared object file: No such file or directory
解决方式：
方法一（未验证）：
第一步：export LD_LIBRARY_PATH=/usr/local/lib;
第二步：运行/sbin/ldconfig命令更新/etc/ld.so.cache;
注意：可以通过命令echo $LD_LIBRARY_PATH来查看设置内容
方法二：
创建一个符号链接：sudo ln -s /usr/local/lib/libdnet.1 /usr/lib/libdnet.1
原因：
1.liddnet.1文件在/usr/local/lib目录下，但是系统默认的装载库路径却没有这个．
2.为了加快程序执行时对共享库的定位速度，避免使用搜索路径，直接读取库列表文件/etc/ld.so.cache．
