(OS setting PPPOE dial-up connection server detailed tutorial hi.baidu/zcyhao/blog/item/e1c275faedd3131ca9d31136.html Two: Limit the maximum number of threads per machine: forwbszfrom1to254do={/ipfirewallfilteraddchain=forwardsrc-address=(192.168.0..$wbsz) protocol=tcpconnection-limit=50,32action=drop}3: port mapping ipfirewallnataddchain=dstnatdst-address=(202.96.134.134)protocol=tcpdst-port=80to-addresses=(192.168.0.1)to-ports=80action=dst- nat 4: Block the port number/ipfirewallfilteradchforwardprtcpdst-po8000actdropcomment=BlockadeQQ 5: Change the telnet service port/ipservicesettelnetport=23 6: Change the SSH management service port)
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