Disable and Turn Off Telnet in Linux Onesposobiti ter zapreti Telnet v Linux

Telnet is an unsecured network protocol that facilitates remote login to a server via network connection. Telnet je protokol nezavarovano omrežje, ki omogoča prijavo v oddaljeni strežnik prek omrežne povezave. The protocol allows server to be located thousands of miles away from the administrator yet still can be managed even without physical console access. Protokol omogoča strežniku, da se nahaja na tisoče kilometrov stran od skrbnik še vedno mogoče upravljati tudi brez fizičnega dostopa konzolo. However, Telnet has slowly replaced with SSH (Secure Shell) protocol due to security risks as the data transmission packet, including login username and password for Telnet is unencrypted, allowing hackers or crackers to easily sniff and obtain these information easily. Vendar pa je Telnet počasi nadomesti z SSH (Secure Shell) protokol zaradi varnostnih tveganj, paketni prenos podatkov, vključno s prijavo uporabniško ime in geslo za Telnet je unencrypted, ki omogoča hekerjem ali nor, da enostavno vohanje in pridobivanje teh informacij lažje.

So it's a good practice to disable Telnet service on server, especially web server which reachable from Internet, and replaced with SSH. Tako je dobra praksa, da onemogočite storitev Telnet na strežniku, še posebej spletni strežnik, ki dosegljiv iz interneta, in nadomesti z SSH. For web servers that are subscribed from some web hosting providers has Telnet disabled by default. Za spletnih strežnikov, ki so vpisani nekaterih web hosting ponudnikov je Telnet privzeto onemogočen. Webmasters or system administrators can Webmasters ali skrbnikom sistema, lahko verify if the Telnet service is turned off preveri, če je ponudnik Telnet izklopljen . . If it's still running, the following guide will provide steps to disable and turn off Telnet service. Če je še vedno tekmovanje v teku, bo zagotovila navodila po korakih v onesposobiti ter zapreti Telnet storitev. Telnet server listens for incoming messages on port 23, and sends outgoing messages to port 23. Telnet strežnik posluša za dohodna sporočila na vratih 23, in pošilja odhodnih sporočil v pristanišče 23.

How to Disable Telnet Kako Onemogoči Telnet

1. SSH into server and login as root. SSH v pomočnik ter prijavite kot root.
2. At shell command prompt type the following command and press Enter. V lupini ukazni poziv vnesite ta ukaz in pritisnite Enter. This example use pico to edit text file, you can use vi or other text editor if you want. Ta piko na primer uporabite za urejanje besedilno datoteko, lahko uporabljate vi ali drugi urejevalnik besedila, če želite.

   pico -w /etc/xinetd.d/telnet piko-w / etc / xinetd.d / telnet

3. Locate the following line: Poiščite naslednjo vrstico:

   disable = no onemogoči = no

   Change the “disable = no” to “disable = yes” (no to yes). Change "onemogočenje = no" v "onesposobiti = yes" (ne do ja).

4. Save and exit. Shrani in izhod.
5. Restart the inetd service by using the following command: Restart inetd službe z uporabo naslednji ukaz:

   /etc/rc.d/init.d/xinetd restart / etc / rc.d / init.d / xinetd znova

6. Turn off Telnet through chkconfig as well because it can still start through that: Turn off Telnet preko chkconfig pa tudi zato, ker lahko še vedno, da se začetek z:

   /sbin/chkconfig telnet off / sbin / chkconfig telnet off

IMPORTANT : The page is machine translated and provided "as is" without warranty. POMEMBNO: stran je stroj prevod in če "kot je" brez garancije. Machine translation may be difficult to understand. Strojno prevajanje je lahko težko razumeti. Please refer to Prosimo, da original English article original angleški člen whenever possible. kadar je to mogoče.

Related Articles Povezani članki

• How to Check if Telnet Is Running on a Server Kako v ček če Telnet je tekmovanje v teku na strežniku
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• Install and Enable Telnet Server Service in Windows Vista Napeljati ter usposobiti Telnet pomočnik usluga v okno razgled
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This entry was posted on Sunday, August 19th, 2007 at 10:18 pm and is filed under Ta vnos je bil objavljen na nedelja, avgust 19, 2007 ob 10:18 in je vložena na podlagi Webmaster Resources Webmaster Resources . . You can follow any responses to this entry through the Vi moči slediti poljuben odgovor do danes vstop skozi RSS 2.0 RSS 2.0 feed. You can krme. Lahko leave a response dopusta odgovor , or , Ali trackback trackback from your own site. iz vaše strani.