ssh连接linux服务器

Ⅰ linux镞犳硶ssh杩炴帴linux镞犳硶ssh

linux涓嬫病链塻sh链嶅姟镐庝箞锷烇纻

linux涓嬩竴鑸鏄链塻sh链嶅姟镄勶纴濡傛灉娌℃湁鍙浠ヤ娇鐢▂uminstallssh杩涜屽湪绾垮畨瑁呫

Linux链嶅姟鍣ㄥ彲浠ョ敤SSH杩炴帴涓婏纴鍙鏄痯ingIP涓轰粈涔堜笉阃氾纻

Linux链嶅姟鍣ㄥ彲浠SSH杩炴帴锛屼絾鏄痯ing涓嶉氭槸锲犱负阒茬伀澧欑瓥鐣ョ佹浜唅cmp鍖咃纴鍙浠ラ氲繃浠ヤ笅鏂瑰纺瑙ｉ櫎绂乸ing鍗冲彲銆

1銆佹煡鐪媔ptables绛栫暐锛屼娇鐢-D鍒犻櫎鐩稿簲镄刬cmp鎶ユ枃绛栫暐銆俷et.ipv4.icmp_echo_ignore_all=0//鏀逛负0鍗充负鍏抽棴绂乸ing锛1涓哄紑钖绂乸ing

SSH杩炴帴linux链嶅姟鍣ㄥ弽澶嶆彁绀鸿緭瀵嗙爜锛

ssh涓嶈兘锏诲綍linux闇瑕佹镆ュ㈡埛绔鍜屾湇锷″櫒绔锛

瀹㈡湇绔锛

ssh杩炴帴鏂瑰纺涓猴细ip+绔鍙ｅ彿锛堥粯璁や负22锛

链嶅姟鍣ㄧ锛

1銆佸厛鎶妔shd链嶅姟寮钖锛

/etc/init.d/shhd?restrat2銆佹妸linux镄勯槻𨱔澧椤叧鎺夛绂

1)閲嶅惎linux钖庣敓鏁堬细

chkconfig?iptables?off2)鍗虫椂鐢熸晥锛岄吨钖钖庡け鏁堬细

service?iptables?stop3銆佸㈡埛绔閲嶆柊ssh锏婚檰linux銆

SSH链嶅姟鍣ㄥけ璐ユ庝箞锷烇纻

鍒嗕韩涓変釜SSH链嶅姟鍣ㄥけ璐ョ殑淇澶嶅姙娉曪细瑙ｅ喅鏂规硶锛

涓銆佸紑钖疭SH浠root鐢ㄦ埛锏诲綍Linux锛屾墦寮缁堢锛岃繍琛岋细/etc/init.d/sshdrestrat浜屻佸叧闂阒茬伀澧1銆佸湪缁堢杩愯宻etup2銆侀夋嫨firewall锲炶溅3銆佹寜tab阌鍒囨崲鍒癫isablede椤癸纴铹跺悗鎸夌┖镙奸敭阃夋嫨锛岀劧钖庡啀鎸塼ab阌鍒囨崲鍒皁k锛屾寜绌烘牸浠堕夋嫨4銆佹寜tab阌鍒囨崲鍒皅uit锛屾寜绌烘牸浠堕夋嫨铹跺悗鐢ㄥ㈡埛绔痵sh锏诲綍Linux锛屾垚锷熺橱褰曘

涓夈佸叧闂阒茬伀澧欑殑鍙︿竴绉嶆柟寮忚ˉ鍏呬竴涓锛岀孩镞条inux镄勬煇浜涚増链锛屼笉鍏佽竢oot鐢ㄦ埛杩灭▼锏婚檰镄勶纴闇瑕佷慨鏀硅剧疆#vi/etc/ssh/sshd_config涓璓ermitRootLoginno#杩椤氨涓嶅厑璁竢oot鐢ㄦ埛杩灭▼锏诲綍锛岃佷慨鏀规垚PermitRootLoginyes骞堕吨钖痵shd链嶅姟镓嶈岀殑銆#servicesshdrestart閲嶆柊锏诲綍OK銆

鍦╮edhatlinux7.0涓镓嫔姩璁剧疆镄刬p涓轰粈涔堟棤娉旷敤ssh锏诲綍锛

鍐呯绣杩炴帴鎴愬姛璇存槑ssh链嶅姟娌℃湁闂棰桡纴鍙鑳界殑闂棰樻槸nat銆佽矾鐢辨垨杈圭晫璁块梾鎺у埗銆傝峰仛濡备笅娴嬭瘯锛

1銆佸湪redhatlinux涓婂紑钖痶cpmp杩涜屾暟鎹鍖呮姄鍙栵纴鍏蜂綋濡备笅锛歵cpmp-n"tcpport22"锛

2銆佸湪澶栫绣瀵箁edhatnat钖庣殑澶栫绣ip鍦板潃杩涜宻sh杩炴帴灏濊瘯锛屾ゆ椂濡傛灉鍦╮edhat镄则cpmp涓嬫湁鏁版嵁鍖呭嚭鐜帮纴鍒栾存槑浣犵殑nat娌℃湁闂棰樸傝风‘璁ゅ湪redhat涓婃槸钖︽湁姝ｇ‘璁剧疆缃戝叧銆

3銆佸湪澶栫绣瀵箁edhatnat钖庣殑澶栫绣ip鍦板潃杩涜宻sh杩炴帴灏濊瘯锛屾ゆ椂濡傛灉鍦╮edhat镄则cpmp涓嬫病链夋暟鎹鍖呭嚭鐜帮纴鍒栾存槑浣犵殑nat链夐梾棰桡纴鎴栬呭湪璺鐢卞櫒涓婃槸钖﹀瓨鍦ㄨ块梾鎺у埗绛栫暐锛岃锋镆ャ

Ⅱ linux浣跨敤ssh杩灭▼杩炴帴链嶅姟鍣╨inux浣跨敤ssh

濡备綍浣跨敤LinuxSSH瀹夊叏绛栫暐闄愬埗IP锏诲綍锛

鏂规硶涓锛氶栧厛闇瑕侀檺鍒剁橱褰旷殑ip(鎴栬呭傛灉闇瑕佽嚜宸辨湰鍦扮橱褰曪纴镆ョ湅链钖庣橱褰昳p鍗冲彲)Vim/etc/hosts.allow杈揿叆sshd:114.80.100.159:allowvim/etc/hosts.deny杈揿叆(琛ㄧず闄や简涓婇溃鍏佽哥殑锛屽叾浠栫殑ip閮芥嫆缁濈橱闄唖sh)sshd:ALL链钖巗shd閲嶅惎servicesshdrestart鏂规硶浜岋细姣斿傝翠綘鍙鍏佽114.80.100.159杩欎釜IP杩涘叆锛屽叾瀹冮兘绂佹锛历im/etc/ssh/sshd_config娣诲姞涓琛岋细[email protected]娉锛歺xx涓轰綘鐢ㄦ潵锏诲叆链嶅姟鍣ㄧ殑鐢ㄦ埛钖嶆渶钖巗shd閲嶅惎servicesshdrestart

linux涓嬫庝箞浣縎SH链嶅姟寮链鸿嚜锷ㄨ繍琛岋纻

linux涓嬭﹕sh链嶅姟寮链鸿嚜锷ㄨ繍琛岋纴鍙浠ラ氲繃systemctl锻戒护𨱒ヨ剧疆銆

1銆佽剧疆ssh寮链鸿嚜钖锷╯udosystemctlenablessh璇存槑锛歴udo鏄鎻愬崌𨱒冮檺锛宻ystemctl鏄链嶅姟绠＄悊鍣锛宔nable鏄痵ystemctl镄勫弬鏁帮纴琛ㄧず钖鐢ㄥ紑链鸿嚜锷ㄨ繍琛岋纴ssh鏄瑕佽剧疆镄勬湇锷″悕绉般傝剧疆鎴愬姛钖庯纴鍙浠ョ敤chkconfig镆ョ湅涓涓媠sh镄勫紑链哄惎锷ㄧ姸镐侊纴on琛ㄧず宸茶剧疆寮链鸿嚜钖锷ㄣ

2銆乻sh绂佺敤寮链鸿嚜钖锷╯udosystemctldisablessh璇存槑锛歴udo鏄鎻愬崌𨱒冮檺锛宻ystemctl鏄链嶅姟绠＄悊鍣锛宒isable鏄痵ystemctl镄勫弬鏁帮纴琛ㄧず绂佹㈠紑链鸿繍琛岋纴ssh鏄瑕佽剧疆镄勬湇锷″悕绉般

linux涓媠sh锏诲綍锛屾庝箞鐩存帴杈揿叆鐢ㄦ埛钖嶅拰瀵嗙爜锛

榛樿ょ敤鎴峰悕鏄痳oot

濡傛灉蹇樿颁简锛屽彲浠ヨ繘鍗旷敤鎴风牬瑙

镰磋В鏂规硶

1linux寮链哄紩瀵肩殑镞跺欙纴鎸夐敭鐩树笂镄别灏卞彲浠ヨ繘鍏ヨ繘鍏grub凿滃崟鐣岄溃銆

2.鍦ㄥ嚭鐜癵rub寮曞肩敾闱㈡椂锛坈entos(2.6.18-274**)锛夛纴鎸夊瓧姣峞阌锛岃繘鍏grub缂栬緫鐘舵併

3.鎶婂厜镙囩Щ锷ㄥ埌kernel...闾ｄ竴琛岋纴鍐嶆暡鍏モ渆钬濊繘鍏ュ懡浠よ岀紪杈戯纴

鍦╧ernel涓琛岀殑链钖庡姞涓婄┖镙约锛屽洖杞

鏁插叆钬渂钬濓纴钖锷ㄧ郴缁燂纴鍗宠繘鍏ュ崟鐢ㄦ埛妯″纺锛

4.杩欎釜镞跺椤氨鍙浠ョ敤passwd锻戒护鏀瑰瘑镰佷简銆

passwdroot

鏀瑰畬浠ュ悗reboot閲嶅惎銆

linux涓嬫病链塻sh链嶅姟镐庝箞锷烇纻

linux涓嬩竴鑸鏄链塻sh链嶅姟镄勶纴濡傛灉娌℃湁鍙浠ヤ娇鐢▂uminstallssh杩涜屽湪绾垮畨瑁呫

Ⅲ linux杩炴帴ssh链嶅姟鍣╨inux杩炴帴ssh链嶅姟

Linux绯荤粺涓嫔备綍閰岖疆SSH锛熷备綍寮钖疭SH锛

1銆佸备綍镆ョ湅linux镎崭綔绯荤粺鐗堟湰

镓揿紑linux缁堢锻戒护琛岋纴杈揿叆濡备笅锻戒护鍗冲彲銆俵sb_release-a銆傞噰鐢ㄧ殑鏄瀹炰綋链烘湇锷″櫒锛屾搷浣灭郴缁熶负redhat6.7锛岃︾粏璇风湅涓嫔浘銆