ssh連接linux伺服器

Ⅰ linux鏃犳硶ssh榪炴帴linux鏃犳硶ssh

linux涓嬫病鏈塻sh鏈嶅姟鎬庝箞鍔烇紵

linux涓嬩竴鑸鏄鏈塻sh鏈嶅姟鐨勶紝濡傛灉娌℃湁鍙浠ヤ嬌鐢▂uminstallssh榪涜屽湪綰垮畨瑁呫

Linux鏈嶅姟鍣ㄥ彲浠ョ敤SSH榪炴帴涓婏紝鍙鏄痯ingIP涓轟粈涔堜笉閫氾紵

Linux鏈嶅姟鍣ㄥ彲浠SSH榪炴帴錛屼絾鏄痯ing涓嶉氭槸鍥犱負闃茬伀澧欑瓥鐣ョ佹浜唅cmp鍖咃紝鍙浠ラ氳繃浠ヤ笅鏂瑰紡瑙ｉ櫎紱乸ing鍗沖彲銆

1銆佹煡鐪媔ptables絳栫暐錛屼嬌鐢-D鍒犻櫎鐩稿簲鐨剗cmp鎶ユ枃絳栫暐銆俷et.ipv4.icmp_echo_ignore_all=0//鏀逛負0鍗充負鍏抽棴紱乸ing錛1涓哄紑鍚紱乸ing

SSH榪炴帴linux鏈嶅姟鍣ㄥ弽澶嶆彁紺鴻緭瀵嗙爜錛

ssh涓嶈兘鐧誨綍linux闇瑕佹鏌ュ㈡埛絝鍜屾湇鍔″櫒絝錛

瀹㈡湇絝錛

ssh榪炴帴鏂瑰紡涓猴細ip+絝鍙ｅ彿錛堥粯璁や負22錛

鏈嶅姟鍣ㄧ錛

1銆佸厛鎶妔shd鏈嶅姟寮鍚錛

/etc/init.d/shhd?restrat2銆佹妸linux鐨勯槻鐏澧欏叧鎺夛紱

1)閲嶅惎linux鍚庣敓鏁堬細

chkconfig?iptables?off2)鍗蟲椂鐢熸晥錛岄噸鍚鍚庡け鏁堬細

service?iptables?stop3銆佸㈡埛絝閲嶆柊ssh鐧婚檰linux銆

SSH鏈嶅姟鍣ㄥけ璐ユ庝箞鍔烇紵

鍒嗕韓涓変釜SSH鏈嶅姟鍣ㄥけ璐ョ殑淇澶嶅姙娉曪細瑙ｅ喅鏂規硶錛

涓銆佸紑鍚瘲SH浠root鐢ㄦ埛鐧誨綍Linux錛屾墦寮緇堢錛岃繍琛岋細/etc/init.d/sshdrestrat浜屻佸叧闂闃茬伀澧1銆佸湪緇堢榪愯宻etup2銆侀夋嫨firewall鍥炶濺3銆佹寜tab閿鍒囨崲鍒癲isablede欏癸紝鐒跺悗鎸夌┖鏍奸敭閫夋嫨錛岀劧鍚庡啀鎸塼ab閿鍒囨崲鍒皁k錛屾寜絀烘牸浠墮夋嫨4銆佹寜tab閿鍒囨崲鍒皅uit錛屾寜絀烘牸浠墮夋嫨鐒跺悗鐢ㄥ㈡埛絝痵sh鐧誨綍Linux錛屾垚鍔熺櫥褰曘

涓夈佸叧闂闃茬伀澧欑殑鍙︿竴縐嶆柟寮忚ˉ鍏呬竴涓錛岀孩鏃條inux鐨勬煇浜涚増鏈錛屼笉鍏佽竢oot鐢ㄦ埛榪滅▼鐧婚檰鐨勶紝闇瑕佷慨鏀硅劇疆#vi/etc/ssh/sshd_config涓璓ermitRootLoginno#榪欏氨涓嶅厑璁竢oot鐢ㄦ埛榪滅▼鐧誨綍錛岃佷慨鏀規垚PermitRootLoginyes騫墮噸鍚痵shd鏈嶅姟鎵嶈岀殑銆#servicesshdrestart閲嶆柊鐧誨綍OK銆

鍦╮edhatlinux7.0涓鎵嬪姩璁劇疆鐨剗p涓轟粈涔堟棤娉曠敤ssh鐧誨綍錛

鍐呯綉榪炴帴鎴愬姛璇存槑ssh鏈嶅姟娌℃湁闂棰橈紝鍙鑳界殑闂棰樻槸nat銆佽礬鐢辨垨杈圭晫璁塊棶鎺у埗銆傝峰仛濡備笅嫻嬭瘯錛

1銆佸湪redhatlinux涓婂紑鍚痶cpmp榪涜屾暟鎹鍖呮姄鍙栵紝鍏蜂綋濡備笅錛歵cpmp-n"tcpport22"錛

2銆佸湪澶栫綉瀵箁edhatnat鍚庣殑澶栫綉ip鍦板潃榪涜宻sh榪炴帴灝濊瘯錛屾ゆ椂濡傛灉鍦╮edhat鐨則cpmp涓嬫湁鏁版嵁鍖呭嚭鐜幫紝鍒欒存槑浣犵殑nat娌℃湁闂棰樸傝風『璁ゅ湪redhat涓婃槸鍚︽湁姝ｇ『璁劇疆緗戝叧銆

3銆佸湪澶栫綉瀵箁edhatnat鍚庣殑澶栫綉ip鍦板潃榪涜宻sh榪炴帴灝濊瘯錛屾ゆ椂濡傛灉鍦╮edhat鐨則cpmp涓嬫病鏈夋暟鎹鍖呭嚭鐜幫紝鍒欒存槑浣犵殑nat鏈夐棶棰橈紝鎴栬呭湪璺鐢卞櫒涓婃槸鍚﹀瓨鍦ㄨ塊棶鎺у埗絳栫暐錛岃鋒鏌ャ

Ⅱ linux浣跨敤ssh榪滅▼榪炴帴鏈嶅姟鍣╨inux浣跨敤ssh

濡備綍浣跨敤LinuxSSH瀹夊叏絳栫暐闄愬埗IP鐧誨綍錛

鏂規硶涓錛氶栧厛闇瑕侀檺鍒剁櫥褰曠殑ip(鎴栬呭傛灉闇瑕佽嚜宸辨湰鍦扮櫥褰曪紝鏌ョ湅鏈鍚庣櫥褰昳p鍗沖彲)Vim/etc/hosts.allow杈撳叆sshd:114.80.100.159:allowvim/etc/hosts.deny杈撳叆(琛ㄧず闄や簡涓婇潰鍏佽哥殑錛屽叾浠栫殑ip閮芥嫆緇濈櫥闄唖sh)sshd:ALL鏈鍚巗shd閲嶅惎servicesshdrestart鏂規硶浜岋細姣斿傝翠綘鍙鍏佽114.80.100.159榪欎釜IP榪涘叆錛屽叾瀹冮兘紱佹錛歷im/etc/ssh/sshd_config娣誨姞涓琛岋細[email protected]娉錛歺xx涓轟綘鐢ㄦ潵鐧誨叆鏈嶅姟鍣ㄧ殑鐢ㄦ埛鍚嶆渶鍚巗shd閲嶅惎servicesshdrestart

linux涓嬫庝箞浣縎SH鏈嶅姟寮鏈鴻嚜鍔ㄨ繍琛岋紵

linux涓嬭﹕sh鏈嶅姟寮鏈鴻嚜鍔ㄨ繍琛岋紝鍙浠ラ氳繃systemctl鍛戒護鏉ヨ劇疆銆

1銆佽劇疆ssh寮鏈鴻嚜鍚鍔╯udosystemctlenablessh璇存槑錛歴udo鏄鎻愬崌鏉冮檺錛宻ystemctl鏄鏈嶅姟綆＄悊鍣錛宔nable鏄痵ystemctl鐨勫弬鏁幫紝琛ㄧず鍚鐢ㄥ紑鏈鴻嚜鍔ㄨ繍琛岋紝ssh鏄瑕佽劇疆鐨勬湇鍔″悕縐般傝劇疆鎴愬姛鍚庯紝鍙浠ョ敤chkconfig鏌ョ湅涓涓媠sh鐨勫紑鏈哄惎鍔ㄧ姸鎬侊紝on琛ㄧず宸茶劇疆寮鏈鴻嚜鍚鍔ㄣ

2銆乻sh紱佺敤寮鏈鴻嚜鍚鍔╯udosystemctldisablessh璇存槑錛歴udo鏄鎻愬崌鏉冮檺錛宻ystemctl鏄鏈嶅姟綆＄悊鍣錛宒isable鏄痵ystemctl鐨勫弬鏁幫紝琛ㄧず紱佹㈠紑鏈鴻繍琛岋紝ssh鏄瑕佽劇疆鐨勬湇鍔″悕縐般

linux涓媠sh鐧誨綍錛屾庝箞鐩存帴杈撳叆鐢ㄦ埛鍚嶅拰瀵嗙爜錛

榛樿ょ敤鎴峰悕鏄痳oot

濡傛灉蹇樿頒簡錛屽彲浠ヨ繘鍗曠敤鎴風牬瑙

鐮磋В鏂規硶

1linux寮鏈哄紩瀵肩殑鏃跺欙紝鎸夐敭鐩樹笂鐨別灝卞彲浠ヨ繘鍏ヨ繘鍏grub鑿滃崟鐣岄潰銆

2.鍦ㄥ嚭鐜癵rub寮曞肩敾闈㈡椂錛坈entos(2.6.18-274**)錛夛紝鎸夊瓧姣峞閿錛岃繘鍏grub緙栬緫鐘舵併

3.鎶婂厜鏍囩Щ鍔ㄥ埌kernel...閭ｄ竴琛岋紝鍐嶆暡鍏モ渆鈥濊繘鍏ュ懡浠よ岀紪杈戱紝

鍦╧ernel涓琛岀殑鏈鍚庡姞涓婄┖鏍約錛屽洖杞

鏁插叆鈥渂鈥濓紝鍚鍔ㄧ郴緇燂紝鍗寵繘鍏ュ崟鐢ㄦ埛妯″紡錛

4.榪欎釜鏃跺欏氨鍙浠ョ敤passwd鍛戒護鏀瑰瘑鐮佷簡銆

passwdroot

鏀瑰畬浠ュ悗reboot閲嶅惎銆

linux涓嬫病鏈塻sh鏈嶅姟鎬庝箞鍔烇紵

linux涓嬩竴鑸鏄鏈塻sh鏈嶅姟鐨勶紝濡傛灉娌℃湁鍙浠ヤ嬌鐢▂uminstallssh榪涜屽湪綰垮畨瑁呫

Ⅲ linux榪炴帴ssh鏈嶅姟鍣╨inux榪炴帴ssh鏈嶅姟

Linux緋葷粺涓嬪備綍閰嶇疆SSH錛熷備綍寮鍚瘲SH錛

1銆佸備綍鏌ョ湅linux鎿嶄綔緋葷粺鐗堟湰

鎵撳紑linux緇堢鍛戒護琛岋紝杈撳叆濡備笅鍛戒護鍗沖彲銆俵sb_release-a銆傞噰鐢ㄧ殑鏄瀹炰綋鏈烘湇鍔″櫒錛屾搷浣滅郴緇熶負redhat6.7錛岃︾粏璇風湅涓嬪浘銆