锘??xml version="1.0" encoding="utf-8" standalone="yes"?>亚洲乱码一二三四区乱码,亚洲自偷自偷在线成人网站传媒 ,精品国产亚洲男女在线线电影http://m.tkk7.com/linli/category/54310.htmlhttp://blog.gopersist.com/zh-cnMon, 20 Apr 2015 23:37:05 GMTMon, 20 Apr 2015 23:37:05 GMT60Node.js鐨勫紓姝/Ohttp://m.tkk7.com/linli/archive/2015/04/13/424380.html鑰佹灄鑰佹灄Mon, 13 Apr 2015 13:42:00 GMThttp://m.tkk7.com/linli/archive/2015/04/13/424380.htmlhttp://m.tkk7.com/linli/comments/424380.htmlhttp://m.tkk7.com/linli/archive/2015/04/13/424380.html#Feedback0http://m.tkk7.com/linli/comments/commentRss/424380.htmlhttp://m.tkk7.com/linli/services/trackbacks/424380.htmlLinux鎿嶄綔緋葷粺鐨処/O妯″瀷

JAVA鐨凬IO寮曞叆浜?jiǎn)寮傛I/O錛岃孨ode.js瀹ｇО鐨勫氨鏄紓姝ョ紪紼嬶紝I/O鑷劧鏄紓姝ョ殑銆傚叾瀹炴搷浣滅郴緇熷湪寰堟棭灝卞紩鍏ヤ簡(jiǎn)寮傛I/O鐨勬蹇碉紝濡備笅鍥撅紙鎽樿嚜Unix緗戠粶緙栫▼涓殑鍥劇墖錛夛細(xì)

鎴戝涓婂浘鐨勭悊瑙ｆ湁鍑犵偣錛?/p>

  1. 浠嶪O璁懼璇誨彇鏁版嵁鍒扮敤鎴峰唴瀛樼殑鏁翠釜榪囩▼閮芥槸鐢辯郴緇熷唴鏍告潵瀹屾垚錛?/li>
  2. 鏁版嵁鎬繪槸鍏堣鎷瘋礉鍒板唴鏍哥紦鍐插尯錛屽啀鐢卞唴鏍哥紦鍐插尯鎷瘋礉鍒扮敤鎴峰唴瀛橈紱
  3. 闄や簡(jiǎn)寮傛I/O錛屽叾浣?縐岻/O妯″瀷鍏跺疄閮芥槸闃誨鐨勶紝鑷沖皯鍦ㄦ暟鎹粠鍐呮牳鎷瘋礉鍒扮敤鎴峰唴瀛樻椂鏄樆濉炵殑錛?/li>
  4. 铏界劧寮傛I/O鐪嬩笂鍘繪槸鐞嗘兂瑙ｅ喅鏂規(guī)錛屼絾瀹炵幇涓婄幇鍦ㄧ敤寰楁渶澶氱殑搴旇鏄璺疘/O澶嶇敤錛屾湁select銆乸oll銆乪poll鐨勫疄鐜幫紝鎬ц兘鏈濂界殑鏄痚poll錛?/li>
  5. 寮傛I/O鐜板湪琚涓烘湁緙洪櫡錛屼粎鏀寔O_DIRECT鑰屾棤娉曟敮鎸佺郴緇熺紦瀛樸?/li>

Node.js涓殑寮傛I/O

鍥犱負(fù)鍐呮牳涓殑寮傛I/O鏈夌己闄鳳紝鐜板疄涓殑寮傛I/O閫氬父鐢辯敤鎴鋒佺殑綰跨▼姹犳ā鎷熷畬鎴愶紝濡備笅鍥撅細(xì)

Node.js涓師鏈嬌鐢ㄤ簡(jiǎn)libeio寮傛I/O搴擄紝鍦╲0.9.3鍚庢敼涓鴻嚜宸卞疄鐜扮殑綰跨▼姹犳潵瀹屾垚寮傛I/O銆傛墍浠ュ湪Node.js涓紝闄や簡(jiǎn)鐢ㄦ埛鐨凧avascript浠ｇ爜鏄崟綰跨▼澶栵紝鎵鏈塈/O閮芥槸澶氱嚎紼嬪茍琛屾墽琛岀殑銆?/p>

Node.js涓殑寮傛I/O璋冪敤

Node.js閫氳繃浜嬩歡寰幆鐨勬ā寮忚繍琛岋紝鍦ㄦ瘡涓涓驚鐜殑榪囩▼涓紝閫氳繃璇㈤棶涓涓垨澶氫釜瑙傚療鑰呮潵鍒ゆ柇鏄惁鏈変簨浠惰澶勭悊錛岃岃瀵熻呭彲浠ユ湁鏂囦歡I/O瑙傚療鑰呫佺綉緇淚/O瑙傚療鑰呯瓑銆?/p>

Node.js涓紓姝/O璋冪敤鐨勫ぇ鑷存祦紼嬪涓嬶細(xì)

  • 鍙戣搗I/O璋冪敤
    1. 鐢ㄦ埛閫氳繃Javascript浠ｇ爜璋冪敤Node鏍稿績(jī)妯″潡錛屽皢鍙傛暟鍜屽洖璋冨嚱鏁頒紶鍏ュ埌鏍稿績(jī)妯″潡錛?/li>
    2. Node鏍稿績(jī)妯″潡浼?xì)灏嗕紶鍏ョ殑鍙傛暟鍜屽洖璋冨嚱鏁盀畞瑁呮垚涓涓姹傚璞★紱
    3. 灝嗚繖涓姹傚璞℃帹鍏ュ埌I/O綰跨▼姹犵瓑寰呮墽琛岋紱
    4. Javascript鍙戣搗鐨勫紓姝ヨ皟鐢ㄧ粨鏉燂紝Javascript綰跨▼緇х畫鎵ц鍚庣畫鎿嶄綔銆?/li>
  • 鎵ц鍥炶皟
    1. I/O鎿嶄綔瀹屾垚鍚庯紝浼?xì)灏喚l撴灉鍌ㄥ瓨鍒拌姹傚璞＄殑result灞炴т笂錛屽茍鍙戝嚭鎿嶄綔瀹屾垚鐨勯氱煡錛?/li>
    2. 姣忔浜嬩歡寰幆鏃朵細(xì)媯(gè)鏌ユ槸鍚︽湁瀹屾垚鐨処/O鎿嶄綔錛屽鏋滄湁灝卞皢璇鋒眰瀵硅薄鍔犲叆鍒癐/O瑙傚療鑰呴槦鍒椾腑錛屼箣鍚庡綋鍋氫簨浠跺鐞嗭紱

  • 澶勭悊I/O瑙傚療鑰呬簨浠舵椂錛屼細(xì)鍙栧嚭涔嬪墠灝佽鍦ㄨ姹傚璞′腑鐨勫洖璋冨嚱鏁幫紝鎵ц榪欎釜鍥炶皟鍑芥暟錛屽茍灝唕esult褰撳弬鏁幫紝浠ュ畬鎴怞avascript鍥炶皟鐨勭洰鐨勩?br />
    寰俊璁㈤槄鍙鳳細(xì)
    婧愭枃鍦板潃錛?a title="浣滆呭崥瀹細(xì)http://blog.gopersist.com">
    http://blog.gopersist.com/2015/03/09/aio/


鑰佹灄 2015-04-13 21:42 鍙戣〃璇勮
]]>Linux Keepalived 瀹炵幇鍙屾満鐑http://m.tkk7.com/linli/archive/2014/09/24/418220.html鑰佹灄鑰佹灄Wed, 24 Sep 2014 03:34:00 GMThttp://m.tkk7.com/linli/archive/2014/09/24/418220.htmlhttp://m.tkk7.com/linli/comments/418220.htmlhttp://m.tkk7.com/linli/archive/2014/09/24/418220.html#Feedback2http://m.tkk7.com/linli/comments/commentRss/418220.htmlhttp://m.tkk7.com/linli/services/trackbacks/418220.html
鏈嶅姟鍣?/strong> 鎿嶄綔緋葷粺 IP 铏氭嫙IP
Server 1 Centos 192.168.18.20 192.168.18.22
Server 2 Centos 192.168.18.21 192.168.18.22

1. 瀹夎Keepalived

2鍙癝erver閮戒嬌鐢ㄤ笅闈㈢殑鍛戒護(hù)瀹夎Keepalived錛?br />
yum install keepalived -y

2. Server1 Keepalived 閰嶇疆

$ vi /etc/keepalived/keepalived.conf

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 51
    priority 100                   # 浼樺厛綰?br />    advert_int 1                 # 蹇?jī)锜╅棿闅?縐?
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.18.22         # 铏氭嫙IP
    }
}

3. Server2 Keepalived 閰嶇疆

$ vi /etc/keepalived/keepalived.conf

vrrp_instance VI_1 {
    state BACKUP              # 澶囦喚鏈?br />    interface eth0
    virtual_router_id 51
    priority 99                   # 浼樺厛綰э紝姣斾富鏈嶅姟鍣ㄥ簳
    advert_int 1                 # 蹇?jī)锜╅棿闅?縐?
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.18.22         # 铏氭嫙IP
    }
}

4. 鍚姩Keepalived

$ service keepalived start
鍚姩keepalived鍚庯紝鍙湅鍒?鍙癝erver閮界粦瀹氫簡(jiǎn)铏氭嫙IP錛?br />
$ ip a

# Server 1:
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:24:8c:8c:67:43 brd ff:ff:ff:ff:ff:ff
    inet 192.168.18.20/24 brd 192.168.18.255 scope global eth0
    inet 192.168.18.22/32 scope global eth0
    inet6 fe80::224:8cff:fe8c:6743/64 scope link 
       valid_lft forever preferred_lft forever

# Server 2:
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:23:54:bf:ab:17 brd ff:ff:ff:ff:ff:ff
    inet 192.168.18.21/24 brd 192.168.18.255 scope global eth0
    inet 192.168.18.22/32 scope global eth0
    inet6 fe80::223:54ff:febf:ab17/64 scope link 
       valid_lft forever preferred_lft forever

5. 嫻嬭瘯

嫻忚鍣ㄨ闂甴ttp://192.168.18.22錛屽嚭鐜?This is Server 1.
灝?92.168.18.20鍏抽棴錛屽啀璁塊棶http://192.168.18.22錛屽嚭鐜癟his is Server 2.

寰俊璁㈤槄鍙鳳細(xì)
婧愭枃鍦板潃錛?a >http://blog.gopersist.com/2014/09/24/keepalived/

鑰佹灄 2014-09-24 11:34 鍙戣〃璇勮
]]>LVS-DRhttp://m.tkk7.com/linli/archive/2014/04/28/413001.html鑰佹灄鑰佹灄Mon, 28 Apr 2014 03:15:00 GMThttp://m.tkk7.com/linli/archive/2014/04/28/413001.htmlhttp://m.tkk7.com/linli/comments/413001.htmlhttp://m.tkk7.com/linli/archive/2014/04/28/413001.html#Feedback0http://m.tkk7.com/linli/comments/commentRss/413001.htmlhttp://m.tkk7.com/linli/services/trackbacks/413001.html璇曠敤IPVS鐨勭洿鎺ヨ礬鐢辨柟寮忔潵鍋氳礋杞藉潎琛°傛湇鍔″櫒淇℃伅濡備笅錛?/span>


 

IP閰嶇疆淇℃伅濡備笅錛?/span>

鏈嶅姟鍣?/span>

鎿嶄綔緋葷粺

IP

IP鍒悕

緗戝叧

璋冨害鏈嶅姟鍣?/span>

Centos

192.168.2.90

192.168.2.99

192.168.2.1

瀹為檯鏈嶅姟鍣?/span>

Centos

192.168.2.71

192.168.2.99

192.168.2.1

Centos

192.168.2.72

192.168.2.99

192.168.2.1

 

鐩存帴璺敱鏂瑰紡宸ヤ綔鍦ㄦ暟鎹摼璺眰錛岄氳繃淇敼鏁版嵁鍖呯殑MAC鍦板潃錛屽皢鏁版嵁鍖呰漿鍙戝埌瀹為檯鏈嶅姟鍣ㄤ笂銆傚疄闄呮湇鍔″櫒鍝嶅簲鏃剁洿鎺ュ彂閫佺粰鐢ㄦ埛绔紝鑰屼笉緇忚繃璋冨害鍣ㄣ?/span>

 

鍥犱負(fù)璋冨害鏈嶅姟鍣ㄥ茍娌℃湁淇敼鏁版嵁鍖呯殑IP鍦板潃錛屾墍浠ユ垜浠渶瑕佷負(fù)瀹為檯鏈嶅姟鍣ㄨ緗笌璋冨害鏈嶅姟鍣ㄧ浉鍚岀殑IP鍒悕錛屼互浣垮疄闄呮湇鍔″櫒鎺ュ彈鏁版嵁鍖呫?/span>

 

涓鴻皟搴︽湇鍔″櫒璁劇疆IP鍒悕錛?/span>

ifconfig eth1:0 192.168.2.99

IP鍒悕涓庡師鏉ョ殑IP鍦板潃鍦ㄤ嬌鐢ㄤ笂騫舵病鏈変粈涔堜笉鍚岋紝榪欓噷鍙互ping閫?/span>90鍜?/span>99涓や釜IP銆?/span>

 

涓哄疄闄呮湇鍔″櫒璁劇疆IP鍒悕錛?/span>

ifconfig lo:0 192.168.2.99 broadcast 192.168.2.99 netmask 255.255.255.255 up

涓哄疄闄呮湇鍔″櫒娣誨姞璺敱瑙勫垯錛屼嬌瀹冧笉鍘誨鎵懼叾浠栨嫢鏈夎繖涓?/span>IP鐨勬湇鍔″櫒錛?/span>

route add -host 192.168.2.99 dev lo:0

闃叉瀹為檯鏈嶅姟鍣ㄥ搷搴旈拡瀵?/span>IP鍒悕鐨?/span>ARP騫挎挱錛?/span>

echo 1>/proc/sys/net/ipv4/conf/lo/arp_ignore

echo 2>/proc/sys/net/ipv4/conf/lo/arp_announce

echo 1>/proc/sys/net/ipv4/conf/all/arp_ignore

echo 2>/proc/sys/net/ipv4/conf/all/arp_announce

 

浣跨敤ipvsadm閰嶇疆璋冨害鏈嶅姟鍣細(xì)

ipvsadm -A -t 192.168.2.99:8888 -s rr

ipvsadm -a -t 192.168.2.99:8888 -r 192.168.2.71:8888 -g

ipvsadm -a -t 192.168.2.99:8888 -r 192.168.2.72:8888 -g

 

浣跨敤涓嬮潰鐨勫懡浠ゅ皢榪炴帴鏈夋晥鏃墮棿鏀逛負(fù)1縐掓潵嫻嬭瘯錛岋細(xì)

ipvsadm --set 1 120 300

 

嫻忚鍣ㄨ闂?/span>http://192.168.2.99:8888錛屾瘡闅?/span>1縐掑鐐瑰嚮鍒鋒柊錛屽氨浼?xì)浜ゆ浛鍑虹?/span>192.168.2.71鍜?/span>192.168.2.72銆?/span>

 



鑰佹灄 2014-04-28 11:15 鍙戣〃璇勮
]]>LVS-NAThttp://m.tkk7.com/linli/archive/2014/04/25/412933.html鑰佹灄鑰佹灄Fri, 25 Apr 2014 06:32:00 GMThttp://m.tkk7.com/linli/archive/2014/04/25/412933.htmlhttp://m.tkk7.com/linli/comments/412933.htmlhttp://m.tkk7.com/linli/archive/2014/04/25/412933.html#Feedback0http://m.tkk7.com/linli/comments/commentRss/412933.htmlhttp://m.tkk7.com/linli/services/trackbacks/412933.html璇曠敤IPVS鏉ュ仛璐熻澆鍧囪　錛屼嬌鐢ㄤ簡(jiǎn)1鍙板弻緗戝崱鏈嶅姟鍣ㄥ拰2鍙板崟緗戝崱鏈嶅姟鍣紝2涓綉孌點(diǎn)傛湇鍔″櫒淇℃伅濡備笅錛?/span>



IP閰嶇疆淇℃伅濡備笅錛?/span>

鏈嶅姟鍣?/span>

鎿嶄綔緋葷粺

緗戝崱

IP

璋冨害鏈嶅姟鍣?/span>

Centos

eth0

192.168.18.58

eth1

192.168.2.90

瀹為檯鏈嶅姟鍣?/span>

Centos

eth0

192.168.2.71

Centos

eth0

192.168.2.72

 

1.         棣栧厛閰嶇疆璋冨害鏈嶅姟鍣細(xì)

 

a)         IPVS妯″潡宸茬粡鍐呯疆鍒?/span>linux2.6.x鍐呮牳涓紝鍙互閫氳繃涓嬮潰鐨勫懡浠ゆ煡鐪嬫槸鍚﹀凡瀹夎錛?/span>

modprobe -l | grep ipvs

鐪嬪埌綾諱技涓嬮潰鐨勮緭鍑猴紝琛ㄧず宸茬粡瀹夎浜?/span>

kernel/net/netfilter/ipvs/ip_vs.ko

kernel/net/netfilter/ipvs/ip_vs_rr.ko

kernel/net/netfilter/ipvs/ip_vs_wrr.ko

kernel/net/netfilter/ipvs/ip_vs_lc.ko

kernel/net/netfilter/ipvs/ip_vs_wlc.ko

kernel/net/netfilter/ipvs/ip_vs_lblc.ko

kernel/net/netfilter/ipvs/ip_vs_lblcr.ko

kernel/net/netfilter/ipvs/ip_vs_dh.ko

kernel/net/netfilter/ipvs/ip_vs_sh.ko

kernel/net/netfilter/ipvs/ip_vs_sed.ko

kernel/net/netfilter/ipvs/ip_vs_nq.ko

kernel/net/netfilter/ipvs/ip_vs_ftp.ko

kernel/net/netfilter/ipvs/ip_vs_pe_sip.ko

 

b)         瀹夎IPVS鐨勭鐞嗗伐鍏?/span>ipvsadm錛?/span>

yum install -y ipvsadm

 

c)         娓呴櫎琛ㄤ腑鎵鏈夎褰曪細(xì)

ipvsadm -C

浣跨敤涓嬮潰鐨勫懡浠ゅ鍔犺櫄鎷熸湇鍔″櫒錛岄噰鐢ㄨ疆璇㈣皟搴︾瓥鐣ワ細(xì)

ipvsadm -A -t 192.168.18.58:8888 -s rr

 

浣跨敤涓嬮潰鐨勫懡浠ゆ坊鍔犲疄闄呮湇鍔″櫒錛屽茍閲囩敤NAT鏂瑰紡杞彂鏁版嵁鍖咃細(xì)

ipvsadm -a -t 192.168.18.58:8888 -r 192.168.2.71:9999 -m

ipvsadm -a -t 192.168.18.58:8888 -r 192.168.2.72:9999 -m

 

d)         鎵撳紑鏁版嵁鍖呰漿鍙戯細(xì)

echo 1 > /proc/sys/net/ipv4/ip_forward

 

2.         鎺ヤ笅鏉ラ厤緗?/span>2鍙板疄闄呮湇鍔″櫒錛屽垎鍒仛浠ヤ笅宸ヤ綔錛?/span>

 

a)         鍦?/span>9999绔彛涓婂惎鍔ㄤ竴涓?/span>web鏈嶅姟錛?/span>

閰嶇疆濂?/span>web鏈嶅姟鍚庯紝褰撹闂?/span>http://192.168.2.71:9999鏃訛紝欏甸潰榪斿洖錛?/span>This is 192.168.2.71.錛涘綋璁塊棶http://192.168.2.72:9999鏃訛紝欏甸潰榪斿洖錛?/span>This is 192.168.2.72.

 

b)         璁劇疆榛樿緗戝叧鎸囧悜璋冨害鏈嶅姟鍣?/span>

route del default

route add default gw 192.168.2.90

 

3.         嫻嬭瘯

 

璁塊棶192.168.18.58:8888錛屼細(xì)鏄劇ずThis is 192.168.2.71鎴?/span>This is 192.168.2.72錛屽嬈″埛鏂板簲璇ヨ浜ゆ浛鍑虹幇71鍜?/span>72錛屼絾瀹為檯涓婂茍娌℃湁榪欐牱錛屾祻瑙堝櫒鍙樉紺轟笌絎竴嬈＄浉鍚岀殑鍐呭錛屼篃灝辨槸ipvsadm姣忔閮介夋嫨浜?jiǎn)鍚屼竴鍙版湇鍔″櫒銆傝繖鏄洜涓哄綋涓涓?/span>TCP榪炴帴鐨勫垵濮?/span>SYN鎶ユ枃鍒拌揪鏃訛紝IPVS灝遍夋嫨浜?jiǎn)涓鍙版湇鍔″櫒錛屽悗緇ф姤鏂囦細(xì)琚漿鍙戝埌鐩稿悓鐨勬湇鍔″櫒銆傝繖涓?/span>TCP榪炴帴鍦?/span>ipvsadm涓粯璁ゆ湁鏁堟椂闂翠負(fù)15鍒嗛挓錛屽彲浠ラ氳繃涓嬮潰鐨勫懡浠ゆ煡鐪嬶細(xì)

ipvsadm -L --timeout

Timeout (tcp tcpfin udp): 900 120 300

鐜板湪灝嗘湁鏁堟椂闂存敼涓?/span>1縐掓潵嫻嬭瘯錛屼嬌鐢ㄤ笅闈㈢殑鍛戒護(hù)錛?/span>

ipvsadm --set 1 120 300

 

鍐嶅埌嫻忚鍣ㄤ腑姣忛殧1縐掑鐐瑰嚮鍒鋒柊錛屽氨浼?xì)浜ゆ浛鍑虹?/span>71鍜?/span>72錛岃鏄庤疆璇㈣皟搴︽鍦ㄦ甯稿伐浣溿?/span>

 

 



鑰佹灄 2014-04-25 14:32 鍙戣〃璇勮
]]>iptables NAT 瀛︿範(fàn)http://m.tkk7.com/linli/archive/2014/04/24/412896.html鑰佹灄鑰佹灄Thu, 24 Apr 2014 09:15:00 GMThttp://m.tkk7.com/linli/archive/2014/04/24/412896.htmlhttp://m.tkk7.com/linli/comments/412896.htmlhttp://m.tkk7.com/linli/archive/2014/04/24/412896.html#Feedback0http://m.tkk7.com/linli/comments/commentRss/412896.htmlhttp://m.tkk7.com/linli/services/trackbacks/412896.html涓轟簡(jiǎn)鎼炴竻妤?/span>iptables NAT鐨勮繃紼嬶紝鍋氫簡(jiǎn)榪欎釜瀹為獙銆備嬌鐢ㄤ簡(jiǎn)1鍙板弻緗戝崱鏈嶅姟鍣ㄥ拰1鍙板崟緗戝崱鏈嶅姟鍣紝2涓綉孌點(diǎn)傛湇鍔″櫒淇℃伅濡備笅錛?/span>


IP閰嶇疆淇℃伅濡備笅錛?/span>

鏈嶅姟鍣?/span>

鎿嶄綔緋葷粺

緗戝崱

IP

璋冨害鏈嶅姟鍣?/span>

Centos

eth0

192.168.18.58

eth1

192.168.2.90

瀹為檯鏈嶅姟鍣?/span>

Centos

eth0

192.168.2.73

 

1.       涓轟簡(jiǎn)鐪嬪埌璋冨害鏈嶅姟鍣ㄤ笂鐨勬暟鎹漿鍙戣繃紼嬶紝棣栧厛鍦ㄨ皟搴︽湇鍔″櫒涓婂垎鍑?/span>鍐呮牳鐨刣ebug鏃ュ織錛?/span>

l 鍦?/span>/etc/rsyslog.conf鏈鍚庡鍔狅細(xì)kern.debug /var/log/iptables.log

l 閲嶅惎鏃ュ織鏈嶅姟錛?/span>/etc/init.d/rsyslog restart

 

2.       鍚姩璋冨害鏈嶅姟鍣ㄧ殑iptables騫舵竻絀鴻鍒?/span>

service iptables start

iptables -F

 

3.       澧炲姞璋冨害鏈嶅姟鍣ㄧ殑iptables鐗瑰畾鏃ュ織杈撳嚭

鍋囪瑕佸皢瀵硅皟搴︽湇鍔″櫒8888绔彛鐨勮闂漿鍙戠粰瀹為檯鏈嶅姟鍣ㄧ殑9999绔彛澶勭悊錛屽湪iptables涓鍔犱笌榪?/span>2涓鍙ｇ浉鍏崇殑鏃ュ織杈撳嚭錛?/span>

iptables -t mangle -A PREROUTING -p tcp --dport 8888 -j LOG --log-level debug --log-prefix "<<<<< PER IN:"

iptables -t mangle -A PREROUTING -p tcp --sport 9999 -j LOG --log-level debug --log-prefix "<<<<< PER IN:"

iptables -t mangle -A POSTROUTING -p tcp --sport 8888 -j LOG --log-level debug --log-prefix ">>>>> POST OUT:"

iptables -t mangle -A POSTROUTING -p tcp --dport 9999 -j LOG --log-level debug --log-prefix ">>>>> POST OUT:"

iptables -t mangle -A POSTROUTING -p tcp --sport 9999 -j LOG --log-level debug --log-prefix ">>>>> POST OUT:"

 

榪欐椂錛岄氳繃嫻忚鍣ㄨ闂?/span>http://192.168.18.58:8888鍙互鐪嬪埌iptables.log涓墦鍗板嚭涓嬮潰鐨勬棩蹇楋細(xì)

Apr 24 16:24:35 route-server1 kernel: <<<<< PER IN:IN=eth0 OUT= MAC=00:1f:c6:cb:eb:e0:00:1f:33:de:29:ad:08:00 SRC=192.168.18.25 DST=192.168.18.58 LEN=60 TOS=0x00 PREC=0x00 TTL=63 ID=28721 DF PROTO=TCP SPT=50270 DPT=8888 WINDOW=14600 RES=0x00 SYN URGP=0

Apr 24 16:24:35 route-server1 kernel: <<<<< POST OUT:IN= OUT=eth0 SRC=192.168.18.58 DST=192.168.18.25 LEN=40 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP SPT=8888 DPT=50270 WINDOW=0 RES=0x00 ACK RST URGP=0

 

铏界劧榪欎釜绔彛涓婂嵆娌℃湁搴旂敤錛屼篃娌℃湁灝嗚姹傝漿鍙戝嚭鍘伙紝浣嗘棩蹇楁墦鍗板嚭浜?jiǎn)鍐呮牳鑾峰彇鍒扮殑瀵箻q欎釜绔彛鐨勮姹傘?/span>

 

4.       閰嶇疆iptables灝嗗8888鐨勮姹傝漿鍙戝埌192.168.2.73:9999

iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 8888 -j DNAT --to-destination 192.168.2.73:9999

 

璁塊棶http://192.168.18.58:8888錛屾棩蹇椾腑鎵撳嵃濡備笅淇℃伅錛?/span>

Apr 24 16:39:21 route-server1 kernel: <<<<< PER IN:IN=eth0 OUT= MAC=00:1f:c6:cb:eb:e0:00:1f:33:de:29:ad:08:00 SRC=192.168.18.25 DST=192.168.18.58 LEN=60 TOS=0x00 PREC=0x00 TTL=63 ID=56888 DF PROTO=TCP SPT=50274 DPT=8888 WINDOW=14600 RES=0x00 SYN URGP=0

 

鏃ュ織涓彧鎵撳嵃浜?jiǎn)浠?/span>eth0鏀跺埌鐨勫8888绔彛鐨勮姹傦紝榪欐槸鍥犱負(fù)褰撴暟鎹琚漿鍙戝埌192.168.2.73:9999鏃訛紝榛樿鎯呭喌涓嬭紱佹浜?jiǎn)銆?/span>

 

5.       鎵撳紑鏁版嵁鍖呰漿鍙戝姛鑳?/span>

echo 1 > /proc/sys/net/ipv4/ip_forward

 

璁塊棶http://192.168.18.58:8888錛屾棩蹇椾腑鎵撳嵃濡備笅淇℃伅錛?/span>

Apr 24 16:39:21 route-server1 kernel: <<<<< PER IN:IN=eth0 OUT= MAC=00:1f:c6:cb:eb:e0:00:1f:33:de:29:ad:08:00 SRC=192.168.18.25 DST=192.168.18.58 LEN=60 TOS=0x00 PREC=0x00 TTL=63 ID=56888 DF PROTO=TCP SPT=50274 DPT=8888 WINDOW=14600 RES=0x00 SYN URGP=0

Apr 24 16:39:21 route-server1 kernel: <<<<< POST OUT:IN= OUT=eth1 SRC=192.168.18.25 DST=192.168.2.73 LEN=60 TOS=0x00 PREC=0x00 TTL=62 ID=56888 DF PROTO=TCP SPT=50274 DPT=9999 WINDOW=14600 RES=0x00 SYN URGP=0

 

絎竴鏉℃棩蹇楁樉紺轟粠eth0鏀跺埌浜?jiǎn)瀵?/span>8888绔彛鐨勮姹傦紝絎簩鏉℃棩蹇楁樉紺?/span>iptables宸茬粡鏇存敼浜?jiǎn)鏁版嵁鍖呯殑鐩殑鍦颁?/span>192.168.2.73:9999錛屽茍閫氳繃eth1鍙戝嚭鍘匯?/span>

 

浣嗚繖鏃惰姹傝櫧鐒跺凡緇忚杞彂鍒板疄闄呭鐞嗙殑鏈嶅姟鍣紝浣嗚皟搴︽湇鍔″櫒鏀朵笉鍒板搷搴旓紝嫻忚鍣ㄤ粛鍦ㄤ笉鍋滈噸璇曪紝鏃ュ織涔熷湪涓嶆柇鎵撳嵃銆傝繖鏄洜涓哄疄闄呮湇鍔″櫒鏀跺埌鐨勬暟鎹寘鐨勬潵婧?/span>IP鏄彟涓涓綉孌電殑錛屽疄闄呮湇鍔″櫒鍥炲鏃訛紝鍙戠幇涓嶆槸鏈綉孌電殑灝辨妸鏁版嵁鍖呭彂緇欑綉鍏籌紝緗戝叧璁劇疆鐨勬槸192.168.2.1錛岃繖鏃舵暟鎹氨涓簡(jiǎn)銆?/span>

 

6.       灝嗗疄闄呮湇鍔″櫒鐨勯粯璁ょ綉鍏寵緗負(fù)192.168.2.90

鍦ㄥ疄闄呮湇鍔″櫒涓婃墽琛屼互涓嬪懡浠わ細(xì)

route del default

route add default gw 192.168.2.90

 

鍐嶆璁塊棶http://192.168.18.58:8888錛屾棩蹇楁墦鍗板涓嬩俊鎭細(xì)

Apr 24 16:47:27 route-server1 kernel: <<<<< PER IN:IN=eth0 OUT= MAC=00:1f:c6:cb:eb:e0:00:1f:33:de:29:ad:08:00 SRC=192.168.18.25 DST=192.168.18.58 LEN=60 TOS=0x00 PREC=0x00 TTL=63 ID=37000 DF PROTO=TCP SPT=50279 DPT=8888 WINDOW=14600 RES=0x00 SYN URGP=0

Apr 24 16:47:27 route-server1 kernel: <<<<< POST OUT:IN= OUT=eth1 SRC=192.168.18.25 DST=192.168.2.73 LEN=60 TOS=0x00 PREC=0x00 TTL=62 ID=37000 DF PROTO=TCP SPT=50279 DPT=9999 WINDOW=14600 RES=0x00 SYN URGP=0

Apr 24 16:47:27 route-server1 kernel: <<<<< PER IN:IN=eth1 OUT= MAC=00:22:b0:de:f7:49:00:24:8c:b4:a1:8c:08:00 SRC=192.168.2.73 DST=192.168.18.25 LEN=40 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP SPT=9999 DPT=50279 WINDOW=0 RES=0x00 ACK RST URGP=0

Apr 24 16:47:27 route-server1 kernel: <<<<< POST OUT:IN= OUT=eth0 SRC=192.168.2.73 DST=192.168.18.25 LEN=40 TOS=0x00 PREC=0x00 TTL=63 ID=0 DF PROTO=TCP SPT=9999 DPT=50279 WINDOW=0 RES=0x00 ACK RST URGP=0

 

涓婇潰絎竴鏉＄浜屾潯鏃ュ織鍜屼箣鍓嶄竴鏍鳳紝iptables灝嗙洰鍦板潃鏇存敼鍚庯紝閫氳繃eth1緗戝崱鍙戦佸嚭鍘匯傜涓夋潯鏃ュ織閫氳繃eth1緗戝崱鎺ユ敹鍒頒簡(jiǎn)瀹為檯鏈嶅姟鍣ㄥ彂閫佽繃鏉ョ殑鏁版嵁錛屽茍鍦ㄧ鍥涙潯鏃ュ織涓氳繃eth0鍙戝洖璇鋒眰鏂廣?/span>

 



鑰佹灄 2014-04-24 17:15 鍙戣〃璇勮
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