独学而无友,则孤陋而寡闻!
发布时间:2016-11-10 21:28:47
ISC dhcpd and MAC prefixesBY MICHAEL W LUCAS, ON AUGUST 15TH, 2011We have a network at the office without a firewall. Several of our technical folks run a whole mess of oddball network protocols, and maintaining a network firewall would take more manpower than it’s worth. We hand .........【阅读全文】
发布时间:2013-03-22 20:19:13
proxy.config.system.mmap_maxlib/ts/ink_memory.cc点击(此处)折叠或打开intats_mallopt(int param, int value){#if TS_HAS_JEMALLOC// TODO: jemalloc code ?#else#if TS_HAS_TCMALLOC// TODO: tcmall.........【阅读全文】
发布时间:2013-01-02 16:30:05
停电了,远程的服务器也出错了。于是想到,用手机吧。装上ssh!好在用密码认证,输密码……靠,输入法直接联想的单词,郁闷!&……没办法,凑合着用吧。编辑个配置文件试试……靠,没有光标键!上下左右都移动不了!好在经常用vi,否则,麻烦大了!我在想,windows服务器怎么办?......【阅读全文】
adx1102011-06-18 19:43
superzjq2011-06-10 23:38
非常感谢老师的关注:)使用skipto可以解决这个问题
但还有点疑问,one_pass不是只跟nat和pipe有关吗,limit应该是属于动态规则吧 ?
在下不才 针对两种情况进行了测试
net.inet.ip.fw.one_pass = 0
# ipfw show
00100 9 529 allow ip from 192.168.1.0/24 to any in via em1 limit src-addr 100
00200 0 0 nat 1 ip from 192.168.1.0/24 to any out via em0
00300 0 0 nat 1 ip from any to me in via em0
00400 3 373 allow ip from any to any(用来匹配所有重新进入ipfw的数据包)
65535 0 0 deny ip from any to any
net.inet.ip.fw.one_pass = 1
# ipfw show
00100 8 480 allow ip from 192.168.1.0/24 to any in via em1 limit src-addr 100
00200 0 0 nat 1 ip from 192.168.1.0/24 to any out via em0
00300 0 0 nat 1 ip from any to me in via em0
00400 0 0 allow ip from any to 192.168.1.0/24 out via em1
65535 45 1262 deny ip from any to any
其中em0接外网,em1接内网,有没one_pass都一样,数据包一被limit匹配后就没了下文
只能跟skipto一起使用,不知道是不是BUG,还是说有哪些地方需要设置
我用的是FreeBSD 8.2,内核配置都是默认的
superzjq2011-05-26 17:59
老师您好,能否帮我看下这段配置
ipfw add allow ip from 192.168.1.0/24 to any in via em1 limit src-addr 10
ipfw add nat 1 ip from 192.168.1.0/24 to any out via em0
ipfw add nat 1 ip from any to me in via em0
ipfw nat 1 config if em0 log
ipfw add allow ip from any to any
em0接外网,em1接内网,做了NAT,想限制每IP连接数,已经明确指定了方向和接口,但不知为何数据包被第一条limit匹配后就无法到达第二条的nat上了,去掉第一条的limit部分后则完全没有问题,实在是让我郁闷不已,望不吝赐教