[已解决]求解 iptables connlimit为啥会有这么奇葩的提示...
# iptables -I FORWARD -p tcp --syn --dport 80 -m connlimit --connlimit-above 20 -j DROPiptables: Protocol wrong type for socket.语法明显没错...
但就是会说Protocol wrong type for socket.，理解不能...
系统：CentOS6.2（32位）（3.9.3-x86-linode52）
lnmp0.8
已解决：https://bbs.vpser.net/viewthread.php?tid=9649&pid=28453&page=1&extra=page%3D1#pid28453
[ 本帖最后由 Sonic1997 于 2013-6-6 17:10 编辑 ] 这个好像是内核的问题
回复 2# 的帖子
然后用kernel-patch？（然后这个内核真心不知道是啥= =
[ 本帖最后由 Sonic1997 于 2013-6-5 21:48 编辑 ]
回复 3# 的帖子
问问linode客服看哪个内核的支持，然后换过去 CentOS's userspace tools are also incompatible with the connlimit module in our latest 3.x series kernels because the version of 'iptables' that is installed is too old://CentOS的用户空间工具在我们最新的3.x系列核心中与connlimit模块不兼容因为所安装的iptables版本太旧了：
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# iptables -V
iptables v1.4.7
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Please issue these commands, and again, remember that building from source means that this package will no longer be managed by your package management system (yum):
//输入以下指令，后面的懒得翻译，注意这会覆盖掉你的东西就行了yum update
rpm -e --nodeps iptables-1.4.7-9.el6.i686
rpm -e --nodeps iptables-ipv6-1.4.7-9.el6.i686
yum groupinstall 'Development Tools'
wget http://www.netfilter.org/projects/iptables/files/iptables-1.4.19.tar.bz2
tar jxvf iptables-1.4.19.tar.bz2
cd iptables-1.4.19
LDFLAGS="-L$PWD/libiptc/.libs" ./configure --prefix=/usr --exec-prefix= --bindir=/usr/bin --with-xtlibdir=/lib/xtables --with-pkgconfigdir=/usr/lib/pkgconfig --enable-libipq --enable-devel
make
make installWhen the installation is complete, run "iptables -V" and you should see the following output:
//当你完成安装时，输入“iptables -V” 然后你会看到下面的内容
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iptables v1.4.19
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Now try to load that iptables rule:
//现在你可以用了
iptables -I FORWARD -p tcp --syn --dport 80 -m connlimit --connlimit-above 20 -j DROP
It should succeed with no error message. You can verify that the rule was loaded with either of these commands:
//下载应该能运行的了，你可以通过以下任意一个指令来验证你的规矩是否已经加载
iptables-save
iptables -L -n -v
搞定，感谢军哥提出指引&Linode客服
[ 本帖最后由 Sonic1997 于 2013-6-6 17:19 编辑 ]
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