安裝denyhost防止SSH和FTP被暴力破解–centos版本
下載安裝:
wget http://lnmp54.googlecode.com/files/DenyHosts-2.6.tar.gz
tar -zxvf DenyHosts-2.6.tar.gz
cd DenyHosts-2.6
python setup.py install
修改配置:
cp /usr/share/denyhosts/denyhosts.cfg-dist /usr/share/denyhosts/denyhosts.cfg
vi /usr/share/denyhosts/denyhosts.cfg
3、根据自己需要进行相应的修改----------------denyhosts.cfg------------------------SECURE_LOG = /var/log/secure#RedHat/Fedora Core分析该日志文件#其它版本linux根据denyhosts.cfg-dist内提示选择。PURGE_DENY = 30m#过多久后清除DENY_THRESHOLD_INVALID = 1#允许无效用户（/etc/passwd未列出）登录失败的次数DENY_THRESHOLD_VALID = 5#允许有效（普通）用户登录失败的次数DENY_THRESHOLD_ROOT = 3#允许root登录失败的次数HOSTNAME_LOOKUP=NO#是否做域名反解
DenyHosts配置文件：vi /etc/denyhosts.cfgSECURE_LOG = /var/log/secure #ssh 日志文件，它是根据这个文件来判断的。HOSTS_DENY = /etc/hosts.deny #控制用户登陆的文件PURGE_DENY = 5m#过多久后清除已经禁止的BLOCK_SERVICE = sshd#禁止的服务名DENY_THRESHOLD_INVALID = 1#允许无效用户失败的次数DENY_THRESHOLD_VALID = 10#允许普通用户登陆失败的次数DENY_THRESHOLD_ROOT = 5#允许root登陆失败的次数HOSTNAME_LOOKUP=NO#是否做域名反解DAEMON_LOG = /var/log/denyhosts#自己的日志文件ADMIN_EMAIL = yuhongchun027@163.com#管理员邮件地址,它会给管理员发邮件
最后设置开启启动
cp /usr/share/denyhosts/daemon-control-dist /usr/share/denyhosts/daemon-control
chown root /usr/share/denyhosts/daemon-control
chmod 755 /usr/share/denyhosts/daemon-control
ln -s /usr/share/denyhosts/daemon-control /etc/init.d/denyhosts
chkconfig --level 345 denyhosts on
啟動denyhosts
service denyhosts start