DenyHosts是Python语言写的一个程序,它会分析sshd的日志文件(/var/log/secure),当发现重 复的攻击时就会记录IP到/etc/hosts.deny文件,从而达到自动屏IP的功能。以下内容是出现的错误及解决办法。
出现:
./daemon-control start starting DenyHosts: /usr/bin/env python /usr/bin/denyhosts.py --daemon --config=/usr/share/denyhosts/denyhosts.cfg Can't read: /private/var/log/system.log [Errno 2] No such file or directory: '/private/var/log/system.log' Error deleting DenyHosts lock file: /var/lock/subsys/denyhosts [Errno 2] No such file or directory: '/var/lock/subsys/denyhosts'
使用:
mkdir -p /private/var/log/ mkdir -p /var/lock/subsys/ ./daemon-control start starting DenyHosts: /usr/bin/env python /usr/bin/denyhosts.py --daemon --config=/usr/share/denyhosts/denyhosts.cfg Can't read: /private/var/log/system.log [Errno 2] No such file or directory: '/private/var/log/system.log' Error deleting DenyHosts lock file: /var/lock/subsys/denyhosts [Errno 2] No such file or directory: '/var/lock/subsys/denyhosts'
使用:
touch /private/var/log/system.log touch /var/lock/subsys/denyhosts ./daemon-control start
出现:
starting DenyHosts: /usr/bin/env python /usr/bin/denyhosts.py --daemon --config=/usr/share/denyhosts/denyhosts.cfg DenyHosts could not obtain lock (pid: ) [Errno 17] File exists: '/var/lock/subsys/denyhosts'
使用:
rm -f /var/lock/subsys/denyhosts ./daemon-control start starting DenyHosts: /usr/bin/env python /usr/bin/denyhosts.py –daemon –config=/usr/share/denyhosts/denyhosts.cfg OK!
启动完成啦。
你可以使用
service denyhosts status来查看运行状态
DenyHosts is running with pid = 25874 表示已经启动起来了。
接下来就可以使用
cat /etc/hosts.deny来查看记录了
#service denyhost start starting DenyHosts: /usr/bin/env python /usr/bin/denyhosts.py --daemon --config=/usr/share/denyhosts/denyhosts.cfg python: can't open file '/usr/bin/denyhosts.py': [Errno 2] No such file or directory
经过查找发现denyhosts.py在目录/usr/local/bin/目录下,于是修改daemon-control文件
#vi daemon-control DENYHOSTS_BIN = "/usr/bin/denyhosts.py" DENYHOSTS_LOCK = "/var/lock/subsys/denyhosts" DENYHOSTS_CFG = "/usr/share/denyhosts/denyhosts.cfg"
将第一行修改为DENYHOSTS_BIN = "/usr/local/bin/denyhosts.py"
在运行还会提示错误:导入Python版本错误的提示。如:
Traceback (most recent call last): File "/usr/local/bin/denyhosts.py", line 5, in import DenyHosts.python_version ImportError: No module named DenyHosts.python_version
到这里错误很明了了,经过查询发现版本不对会导致这个问题。
分析后发现原因在此:以前本机已经有一个python2.4的版本,使用rpm安装的,默认的路径是/usr/lib/python2.4,因为要升级python到2.5,也没有对卸载这个2.4的版本,使用编译安装的python2.5,安装路径并没有配置,这默认安装到/usr/local/lib/python2.5这个路径,而目前激活的python环境是2.5的,可能因为denyhosts安装时会根据环境查找安装,因此会在/usr/local/lib/python2.5/site-packages路径下安装Denyhosts这个文件夹。当运行denyhosts时,脚本会指定使用的是/usr/lib/python*这个路径的python里(暂时没找到脚本哪个地方指定),因此它无法定位python的版本,会出现这个错误。
最快速的解决方法是把/usr/local/lib/python2.5/site-packages路径下的Denyhosts文件夹整个拷贝到2.4的安装目录下即可。
cd /usr/local/lib/python2.5/site-packages/ cp -rp Denyhosts /usr/lib/python2.4/site-packages/
这样之后便可以启动Denyhosts了。
关于错误
Traceback (most recent call last): File "/usr/local/python-2.4/bin/denyhosts.py", line 5, in import DenyHosts.python_version ImportError: No module named DenyHosts.python_version
需要修改下面的部分:
1、/usr/share/denyhosts/daemon-control
将
PYTHON_BIN = "/usr/bin/env python"
改为
PYTHON_BIN = "/usr/local/python-2.4/bin/python"
将
#!/usr/bin/env python
改为
#!/usr/local/python-2.4/bin/python
将
DENYHOSTS_BIN = "/usr/bin/denyhosts.py"
改为
DENYHOSTS_BIN = "/usr/local/python-2.4/bin/denyhosts.py"
2.
cp -rp /usr/local/python-2.4/lib/python2.4/site-packages/DenyHosts/ /usr/local/python-2.4/lib/python2.4/
原文地址:http://blog.sina.com.cn/s/blog_4ab15f5f0101e0a0.html
本文链接:https://jeff.xin/post/42.html
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