linux关闭防火墙的命令

1. 镐庝箞鍏抽棴linux阒茬伀澧椤叧闂璴inux阒茬伀澧

linux濡备綍鍏抽棴阒茬伀澧欙纻

rhel6鍏抽棴阒茬伀澧欑殑鏂规硶涓猴细serviceiptablesstatus镆ョ湅褰揿墠阒茬伀澧欑姸镐1.姘镐箙镐х敓鏁埚紑钖锛歝hkconfigiptableson鍏抽棴锛歝hkconfigiptablesoff2.鍗虫椂鐢熸晥锛岄吨钖钖庡け鏁埚紑钖锛歴erviceiptablesstart鍏抽棴锛歴erviceiptablesstoprhel7鍏抽棴阒茬伀澧欑殑鏂规硶涓猴细systemctlstatusfirewalld镆ョ湅褰揿墠阒茬伀澧欑姸镐1.姘镐箙镐х敓鏁埚紑钖锛歴ystemctlenablefirewalld鍏抽棴锛歴ystemctldisablefirewalld2.鍗虫椂鐢熸晥锛岄吨钖钖庡け鏁埚紑钖锛歴ystemctlstartfirewalld鍏抽棴锛歴ystemctlstopfirewalld

Linux杩灭▼锏婚檰闇瑕佸叧闂阒茬伀澧椤槢锛

闇瑕佸叧闂阒茬伀杞钥呭

鎴戝湪涓绘満鍜岃櫄𨰾熸満涓婅繘琛屼简杩炴帴娴嬭瘯锛宨p鍜宲ort閮芥病链夐梾棰桡纴JMX绔鍙ｄ篃璁剧疆浜嗛槻𨱔澧椤紑鏀撅纴浣嗗氨鏄涓嶆垚锷

钖庢潵镆ヨ繃璧勬枡鍙戠幇鏄锲犱负闄よ厞甯呜柉浜呙MXserver鎸囧畾镄勭洃钖绔鍙ｅ彿澶栵纴杞挎梾JMXserver杩树细鐩戝惉涓鍒颁袱涓闅忔満绔鍙ｅ彿锛岃繖浜涚鍙ｅ彿閮芥槸闅忔満鍒嗛厤镄勶纴鍙链夊叧闂阒茬伀澧欐墠鑳芥垚锷熻繛鎺ャ

linux阒茬伀澧欑殑钖锷ㄥ拰鍏抽棴镄勫懡浠ゆ槸浠涔堬纻

LINUX绯荤粺鍏抽棴阒茬伀澧欑殑姝ラゅ备笅锛

1.棣栧厛镓揿紑SSH杞浠讹纴鎸夊洖杞﹂敭灏变细鎻愮ず浣犺繘琛岀橱褰曪纴杈揿叆IP鍜岀敤鎴峰悕杩涜岀橱褰曘

2.镓ц屽懡浠わ细/etc/init.d/iptablesstatus锛屼细寰楀埌涓绯诲垪淇℃伅锛岃存槑阒茬伀澧椤紑镌銆

3.镓ц屽懡浠わ细/etc/init.d/iptablesstop锛屽仠姝㈡湇锷°

4.镓ц屽懡浠わ细chkconfig--levels35iptablesoff锛屽叧闂阒茬伀澧欐湇锷″紑链哄惎锷ㄣ傝繖镙峰氨瑙ｅ喅浜哃INUX绯荤粺鍏抽棴阒茬伀澧欑殑闂棰树简銆

linux6.0淇鏀归槻𨱔澧栾剧疆锛

鏀筁inux绯荤粺阒茬伀澧欓厤缃闇瑕佷慨鏀/etc/sysconfig/iptables杩欎釜鏂囦欢

vim/etc/sysconfig/iptables

鍦╲im缂栬緫鍣锛屼细鐪嫔埌涓嬮溃镄勫唴瀹

#-config-firewall

#.

*filter

:INPUTACCEPT

:FORWARDACCEPT

:OUTPUTACCEPT

-AINPUT-mstate--stateESTABLISHED,RELATED-jACCEPT

-AINPUT-picmp-jACCEPT

-AINPUT-ilo-jACCEPT

-AINPUT-mstate--stateNEW-mtcp-ptcp--dport22-jACCEPT

-AINPUT-mstate--stateNEW-mtcp-ptcp--dport8080-jACCEPT

-AINPUT-mstate--stateNEW-mtcp-ptcp--dport3306-jACCEPT

-AINPUT-mstate--stateNEW-mtcp-ptcp--dport2181-jACCEPT

-AINPUT-jREJECT--reject-withicmp-host-prohibited

-AFORWARD-jREJECT--reject-withicmp-host-prohibited

COMMIT

闇瑕佸紑鏀剧鍙ｏ纴璇峰湪閲岄溃娣诲姞涓𨱒′竴涓嫔唴瀹瑰嵆鍙:

-ARH-Firewall-1-INPUT-mstate--stateNEW-mtcp-ptcp--dport1521-jACCEPT

鍏朵腑1521鏄瑕佸紑鏀剧殑绔鍙ｅ彿锛岀劧钖庨吨鏂板惎锷╨inux镄勯槻𨱔澧欐湇锷°

Linux涓嫔仠姝/钖锷ㄩ槻𨱔澧欐湇锷＄殑锻戒护(root鐢ㄦ埛浣跨敤)锛

serviceiptablesstop--锅沧

serviceiptablesstart--钖锷

鍐椤湪链钖:

#姘镐箙镐х敓鏁堬纴閲嶅惎钖庝笉浼氩嶅师

chkconfigiptableson#寮钖

chkconfigiptablesoff#鍏抽棴

#鍗虫椂鐢熸晥锛岄吨钖钖庡嶅师

serviceiptablesstart#寮钖

serviceiptablesstop#鍏抽棴

2. linux阒茬伀澧椤叧闂鍜屽紑钖锻戒护linux阒茬伀澧椤叧闂

linux濡备綍鍏抽棴阒茬伀澧欙纻

rhel6鍏抽棴阒茬伀澧欑殑鏂规硶涓猴细serviceiptablesstatus镆ョ湅褰揿墠阒茬伀澧欑姸镐1.姘镐箙镐х敓鏁埚紑钖锛歝hkconfigiptableson鍏抽棴锛歝hkconfigiptablesoff2.鍗虫椂鐢熸晥锛岄吨钖钖庡け鏁埚紑钖锛歴erviceiptablesstart鍏抽棴锛歴erviceiptablesstoprhel7鍏抽棴阒茬伀澧欑殑鏂规硶妫钥呬负锛歴ystemctlstatusfirewalld镆ョ湅褰揿墠阒茬伀澧欑姸镐1.姘镐箙镐х敓鏁埚紑钖锛歴ystemctlenablefirewalld鍏抽棴锛歴ystemctldisablefirewalld2.鍗虫椂鐢熸晥锛岄吨钖钖庡け鏁埚紑钖锛歴ystemctlstartfirewalld鍏抽棴锛歴ystemctlstopfirewalld

linux濡备綍鍏抽棴nginx阒茬伀澧欙纻

Linux鍏抽棴Nginx阒茬伀澧欑殑锻戒护鏄锛氭や妇钖

firewall-cmd--remove-port=80/tcp--permanent

firewall-cmdreload

systemctlrestartfirewalld.service

linux6.0淇鏀归槻𨱔澧栾剧疆锛

鏀筁inux绯荤粺阒茬伀澧欓厤缃闇瑕佷慨鏀/etc/sysconfig/iptables杩欎釜鏂囦欢

vim/etc/sysconfig/iptables

鍦╲im缂栬緫鍣锛屼细鐪嫔埌涓嬬瓟镙搁溃镄勫唴瀹

#-config-firewall

#.

*filter

:INPUTACCEPT

:FORWARDACCEPT

:OUTPUTACCEPT

-AINPUT-mstate--stateESTABLISHED,RELATED-jACCEPT

-AINPUT-picmp-jACCEPT

-AINPUT-ilo-jACCEPT

-AINPUT-mstate--stateNEW-mtcp-ptcp--dport22-jACCEPT

-AINPUT-mstate--stateNEW-mtcp-ptcp--dport8080-jACCEPT

-AINPUT-mstate--stateNEW-mtcp-ptcp--dport3306-jACCEPT

-AINPUT-mstate--stateNEW-mtcp-ptcp--dport2181-jACCEPT

-AINPUT-jREJECT--reject-withicmp-host-prohibited

-AFORWARD-jREJECT--reject-withicmp-host-prohibited

COMMIT

闇瑕佸紑鏀剧鍙ｏ纴璇峰湪閲岄溃娣诲姞涓𨱒′竴涓嫔唴瀹瑰嵆鍙:

-ARH-Firewall-1-INPUT-mstate--stateNEW-mtcp-ptcp--dport1521-jACCEPT

鍏朵腑1521鏄瑕佸紑鏀剧殑绔鍙ｅ彿锛岀劧钖庨吨鏂板惎锷╨inux镄勯槻𨱔澧欐湇锷°

Linux涓嫔仠姝/钖锷ㄩ槻𨱔澧欐湇锷＄殑锻戒护(root鐢ㄦ埛浣跨敤)锛

serviceiptablesstop--锅沧

serviceiptablesstart--钖锷

鍐椤湪链钖:

#姘镐箙镐х敓鏁堬纴閲嶅惎钖庝笉浼氩嶅师

chkconfigiptableson#寮钖

chkconfigiptablesoff#鍏抽棴

#鍗虫椂鐢熸晥锛岄吨钖钖庡嶅师

serviceiptablesstart#寮钖

serviceiptablesstop#鍏抽棴

Linux鍐呮牳鎻愪緵阒茬伀澧椤悧锛

鎻愪緵

SElinux鏄锘轰簬鍐呮牳寮鍙戝嚭𨱒ョ殑涓绉嶅畨鍏ㄦ満鍒讹纴琚绉颁箣涓哄唴镙哥骇锷犲己鍨嬮槻𨱔澧欙纴链夊姏镄勬彁鍗囦简绯荤粺镄勫畨鍏ㄦс

SElinux镄勪綔鐢ㄥ垎涓轰袱鏂归溃锛1.鍦ㄦ湇锷′笂闱㈠姞涓婃爣绛撅绂2.鍦ㄥ姛鑳戒笂闱㈤檺鍒跺姛鑳

鍦╨inux绯荤粺涓浣跨敤getenforce锻戒护鍙浠ユ煡鐪媠elinux镄勭姸镐侊细

disabled涓哄叧闂鐘舵侊纴瀵规湇锷″拰锷熻兘閮芥病链夐檺鍒

enforcing涓哄己鍒剁姸镐侊纴瀵规湇锷″拰锷熻兘閮借繘琛岄檺鍒

linux涓镐庢牱镆ョ湅阒茬伀澧欐槸钖﹀叧闂浜嗭纻

璇︾粏姝ラゅ备笅锛

1銆佹墦寮Linux绯荤粺杩涘叆妗岄溃锛岀偣鍑讳笂鏂硅彍鍗曟爮澶勚愮郴缁熴戦夐”锛

2銆佸湪寮瑰嚭镄勮彍鍗曟爮涓锛屼緷娆＄偣鍑汇愮＄悊銆戯纴銆愰槻𨱔澧欍戦夐”锛

3銆佽繘鍏ラ槻𨱔澧欑晫闱锛岃緭鍏ョ敤鎴峰瘑镰侊纴杩涜屽畨鍏ㄩ獙璇侊绂

4銆佽繛鎺ユ湇锷″櫒钖庯纴杈揿叆璇鍙モ荣erviceiptablesstatus钬欙纴锲炶溅锛屼细鏄剧ず阒茬伀澧欑姸镐侊绂

5銆佽緭鍏ヨ鍙モ榗hkconfigiptableson钬欙纴鍙浠ュ紑钖阒茬伀澧欍傛垨钥呬娇鐢ㄨ鍙モ榗hkconfigiptablesoff钬欙纴鍏抽棴阒茬伀澧欙纴闇瑕侀吨钖钖庣敓鏁堛

3. LINUX绯荤粺镐庝箞鍏抽棴阒茬伀澧

LINUX绯荤粺镐庝箞鍏抽棴阒茬伀澧?
镓璋挞槻𨱔澧欐寚镄勬槸涓涓鐢辫蒋浠跺拰纭浠惰惧囩粍钖堣屾垚銆佸湪鍐呴儴缃戝拰澶栭儴缃戜箣闂淬佷笓鐢ㄧ绣涓庡叕鍏辩绣涔嬮棿镄勬ā姹鐣岄溃涓婃瀯阃犵殑淇濇姢灞忛㱩.鏄涓绉嶈幏鍙栧畨鍏ㄦф柟娉旷殑褰㈣薄璇存硶锛屽畠鏄涓绉嶈＄畻链虹‖浠跺拰杞浠剁殑缁揿悎锛屼娇Internet涓嶪ntranet涔嬮棿寤虹珛璧蜂竴涓瀹夊叏缃戝叧銆
涓嬮溃锛屾垜浠灏变竴璧锋潵鐪嬬湅钖!
(1) 閲嶅惎钖庢案涔呮х敓鏁堬细
寮钖锛歝hkconfig iptables on
鍏抽棴锛歝hkconfig iptables off
(2) 鍗虫椂鐢熸晥锛岄吨钖钖庡け鏁堬细
寮钖锛歴ervice iptables start
鍏抽棴锛歴ervice iptables stop
闇瑕佽存槑镄勬槸瀵逛簬Linux涓嬬殑鍏跺畠链嶅姟閮藉彲浠ョ敤浠ヤ笂锻戒护镓ц屽紑钖鍜屽叧闂镎崭綔銆
鍦ㄥ紑钖浜嗛槻𨱔澧欐椂锛屽仛濡备笅璁剧疆锛屽紑钖鐩稿叧绔鍙ｏ纴
淇鏀/etc/sysconfig/iptables 鏂囦欢锛屾坊锷犱互涓嫔唴瀹癸细
-A RH-Firewall-1-INPUT -m state 钬斺攕tate NEW -m tcp -p tcp 钬斺摅port 80 -j ACCEPT
-A RH-Firewall-1-INPUT -m state 钬斺攕tate NEW -m tcp -p tcp 钬斺摅port 22 -j ACCEPT
鎴栬咃细
/etc/init.d/iptables status 浼氩缑鍒颁竴绯诲垪淇℃伅锛岃存槑阒茬伀澧椤紑镌銆
/etc/rc.d/init.d/iptables stop 鍏抽棴阒茬伀澧
链钖庯细
鍦ㄦ牴鐢ㄦ埛涓嬭緭鍏setup锛岃繘鍏ヤ竴涓锲惧舰鐣岄溃锛岄夋嫨Firewall configuration锛岃繘鍏ヤ笅涓鐣岄溃锛岄夋嫨Security Level涓箧isabled锛屼缭瀛樸傞吨钖鍗冲彲銆
======================================================
fedora涓
/etc/init.d/iptables stop
=======================================================
ubuntu涓嬶细
鐢变簬UBUNTU娌℃湁鐩稿叧镄勭洿鎺ュ懡浠
璇风敤濡备笅锻戒护
iptables -P INPUT ACCEPT
iptables -P OUTPUT ACCEPT
𨱌傛椂寮鏀炬墍链夌鍙
Ubuntu涓婃病链夊叧闂璱ptables镄勫懡浠
=======================================================
iptables 鏄痩inux涓嬩竴娆惧己澶х殑阒茬伀澧欙纴鍦ㄤ笉钥冭槛鏁堢巼镄勬儏鍐典笅锛屽姛鑳藉己澶у埌瓒冲彲浠ユ浛浠ｅぇ澶氭暟纭浠堕槻𨱔澧欙纴浣嗘槸寮哄ぇ镄勯槻𨱔澧椤傛灉搴旂敤涓嶅綋锛屽彲鑳芥尅浣忕殑鍙涓嶅厜鏄闾ｄ簺娼滃湪镄勬敾鍑伙纴杩樻湁鍙鑳芥槸浣犺嚜宸卞摝銆傝繖涓甯︽潵镄勫嵄瀹冲逛簬鏅阃氱殑涓浜篜C𨱒ヨ村彲鑳芥棤鍏崇揣瑕侊纴浣嗘槸𨱍宠薄涓涓嬶纴濡傛灉杩欐槸涓鍙版湇锷″櫒锛屼竴镞﹀彂鐢熻繖镙风殑𨱍呭喌锛屼笉鍏夋槸褰辨棪𨰾崭粩闄㈡ｅ父镄勬湇锷★纴杩橀渶瑕佸埌鐜板満铡绘仮澶嶏纴杩欎细缁欎綘甯︽潵澶氩皯鎹熷け锻?
镓浠ユ垜𨱍宠寸殑鏄锛屽綋浣犳暡鍏ユ疮涓涓猧ptables 鐩稿叧锻戒护镄勬椂鍊欓兘瑕佷竾鍒嗗皬蹇冦
1.搴旂敤姣忎竴涓瑙勫垯鍒瘅ROP target镞讹纴閮借佷粩缁嗘镆ヨ勫垯锛屽簲鐢ㄤ箣鍓嶈佽冭槛浠栫粰浣犲甫𨱒ョ殑褰卞搷銆
2.鍦╮edhat涓鎴戜滑鍙浠ヤ娇鐢╯ervice iptables stop𨱒ュ叧闂阒茬伀澧欙纴浣嗘槸鍦ㄦ湁浜涚増链濡倁buntu涓杩欎釜锻戒护鍗翠笉璧蜂綔鐢锛屽ぇ瀹跺彲鑳藉湪缃戜笂鎼灭储鍒颁笉灏戞枃绔犲憡璇変綘鐢╥ptables -F杩欎釜锻戒护𨱒ュ叧闂阒茬伀澧欙纴浣嗘槸浣跨敤杩欎釜锻戒护鍓嶏纴鍗冧竾璁板缑鐢╥ptables -L镆ョ湅涓涓嬩綘镄勭郴缁熶腑镓链夐摼镄勯粯璁target锛宨ptables -F杩欎釜锻戒护鍙鏄娓呴櫎镓链夎勫垯锛屽彧涓崭细鐪熸ｅ叧闂璱ptables.𨱍宠薄涓涓嬶纴濡傛灉浣犵殑阈鹃粯璁target鏄疍ROP锛屾湰𨱒ヤ綘链夎勫垯𨱒ュ厑璁镐竴浜涚壒瀹氱殑绔鍙ｏ纴 浣嗕竴镞﹀簲鐢╥ptables -L 锛屾竻闄や简镓链夎勫垯浠ュ悗锛岄粯璁ょ殑target灏变细璐轰緧阒绘浠讳綍璁块梾锛屽綋铹跺寘𨰾杩灭▼ssh绠＄悊链嶅姟鍣ㄧ殑浣犮
镓浠ユ垜寤鸿镄勫叧闂阒茬伀澧椤懡浠ゆ槸
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
iptables -F
镐讳箣锛屽綋浣犺佸湪浣犵殑链嶅姟鍣ㄤ笂锅氢换浣曞彉镟存椂锛屾渶濂芥湁涓涓娴嬭瘯鐜澧冨仛杩囧厖鍒嗙殑娴嬭瘯鍐嶅簲鐢ㄥ埌浣犵殑链嶅姟鍣ㄣ傞櫎姝や箣澶栵纴瑕佺敤濂絠ptables锛岄偅灏辫佺悊瑙iptables镄勮繍琛屽师鐞嗭纴鐭ラ亾瀵逛簬姣忎竴涓鏁版嵁鍖卛ptables鏄镐庝箞镙锋潵澶勭悊镄勚傝繖镙锋墠鑳藉嗳纭鍦颁功鍐栾勫垯锛岄伩鍏嶅甫𨱒ヤ笉蹇呰佺殑楹荤储銆

4. 鍏抽棴阒茬伀澧檒inux锻戒护

浠ヤ笅鏄鍏抽棴阒茬伀澧檒inux锻戒护銆
𨱌傛椂鍏抽棴阒茬伀澧欙纴浣跨敤浠ヤ笅锻戒护锛歴udosystemctlstopfirewalld姘镐箙鍏抽棴阒茬伀澧欙细sudosystemctldisablefirewalld阒茬伀澧欐槸淇濇姢绯荤粺瀹夊叏镄勯吨瑕佺粍鎴愰儴鍒嗭纴鍏抽棴阒茬伀澧欎细浣跨郴缁熼溃涓村简镄钖勭嶅畨鍏ㄩ庨橹銆傚湪鍏抽棴阒茬伀澧欎箣鍓嶏纴纭淇濅简瑙ｆ墍镓挎媴镄勯庨橹宸炲皹锛屽苟涓旇獕杩瑰樊宸茬粡閲囧彇浜嗗叾浠栧繀瑕佺殑瀹夊叏鎺鏂姐