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iptables -I INPUT -i eth0 -p tcp --dport 81 -j ACCEPT
iptables -I OUTPUT -o eth0 -p tcp --sport 81 -j ACCEPT
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iptables -I INPUT -i eth0 -p tcp --dport 81 -j DROP
iptables -I OUTPUT -o eth0 -p tcp --sport 81 -j DROP
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UP£º   ifconfig eth0 up
DOWN: ifconfig eth0 down
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/sbin/ifup eth0
/sbin/ifdown eth0
/sbin/ifup | ifdown ÊǶÔ/etc/sysconfig/network-scripts/ifup | down µÄ·ûºÅÁ´½Ó
3.ÍøÂ·µØÖ·µÄÅäÖÃ
a.ifconfig eth0 x.x.x.x netmask x.x.x.x broadcast x.x.x.
b.ͨ¹ýÅäÖÃÎļþÅäÖÃ
/etc/sysconfig/network-scripts/ÏÂÅäÖÃifcfg-xxµÄÎļþ
È磺ifcfg-eth0
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c.ÖØÆônetwork·þÎñ,/etc/init.d/network restart»òservice network restart


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ʵսLinux Bluetooth±à³Ì£¨Èý£© HCI²ã±à³Ì

1. HCI²ãЭÒé¸ÅÊö£º
HCIÌṩһÌ×ͳһµÄ·½·¨À´·ÃÎÊBluetoothµ×²ã¡£ÈçͼËùʾ£º
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ʵսLinux Bluetooth±à³Ì£¨ËÄ£© L2CAP²ã±à³Ì

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Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼­Á¬½Ó¿ØÖƺÍÊÊÅäЭÒé (L2CAP) ΪÉϲãЭÒéÌá¹©ÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àЭÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãЭÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......

ʵսLinux Bluetooth±à³Ì (Æß) SDPЭÒé

Service Discovery Protocol(SDP)ÌṩһÖÖÄÜÁ¦£¬ÈÃÓ¦ÓóÌÐòÓз½·¨·¢ÏÖÄÄÖÖ·þÎñ¿ÉÓÃÒÔ¼°ÕâÖÖ·þÎñµÄÌØÐÔ¡£
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LinuxµÄδÀ´µ½µ×ÔÚ²»ÔÚGoogle£¿

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start oracle with the linux opening

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2.ÐÞ¸Ä/etc/rc.d/rc.loacl,¼ÓÈëÒÔÏ£º
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COMM_LISTENER=/opt/oracle/product/10.2.0/db_1/bin/lsnrctl
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