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HOW TO ENABLE OR DISABLE

TELNET/FTP/SSH.

How to Disable Telnet/FTP on solaris 9

First we have to check telnet/ftp is enabled or disabled

ore /et!/inet".!on#

# TELNETD - telnet server daemon

telnet stream tcp6 nowait root /usr/sbin/intelnetd intelnetd

# FT!D - FT! server daemon

ftp stream tcp6 nowait root /usr/sbin/inftpd inftpd -a

"ere telnet and FTPboth are enabled e have to disable with editin$

the /etc/inetdconf %le have to hash ' and will check the output

ore /et!/inet".!on#

# TELNETD - telnet server daemon

$telnet stream tcp6 nowait root /usr/sbin/intelnetd intelnetd

# FT!D - FT! server daemon

#ftp stream tcp6 nowait root /usr/sbin/inftpd inftpd (a

%s &e# ' (re% inet"

root )** ) + ,pr + . ++0 /usr/sbin/inetd (s

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pkill -"2! )**

Now if we tr3 to lo$in throu$h telnet we will $et connection refused

E4 telnet )5)6667

Tr3in$ )5)6667

telnet 2nable to connect to remote host 8onnection refused

For FTP /et!/#t%"/#t%)sers %le have to edit &unhash' default users.

%s &e# ' (re% inet"

root )** ) + ,pr + . ++0 /usr/sbin/inetd (s

N9 we can tr3 to lo$in throu$h FT!

E: ftp )5)66)0+

FT! server read3

Name &)5)66)0+wiprosun'

00) !assword re;uired for wiprosun

!assword

*0+ Lo$in incorrect

Lo$in failed

Now Telnet/FT! both are disabled

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#ftp stream tcp6 nowait root /usr/sbin/inftpd inftpd (a

,nd /etc/ftpd/ftpusers %le also have to hash' for re;uired users

%s &e# ' (re% inet"

root )** ) + ,pr + . ++0 /usr/sbin/inetd (s

pkill -"2! )**

now if we check we can able to lo$in

E: ftp )5)66))5

8onnected to )5)66))5

+ obc-bkp-dr FT! server read3

Name &)5)66))5wiprosun'

00) !assword re;uired for wiprosun

!assword

0+ 2ser wiprosun lo$$ed in

=emote s3stem t3pe is 2N

"9 to EN,?LE or Disable @@" on @olaris A

/etc/initd/sshd stop

/etc/initd/sshd start

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ps -ef B$rep initd

root )+0A )+7 + ++++0 pts/ +++ $rep initd

pkill -"2! )+0A

HOW TO DISABLE/ENABLE TELNET/FTP/SSH ON SOLARIS *+.

First we have to check telnet/ftp/ssh is enabled or disabled

svcs -a B$rep telnet

disabled @epC+) svc/network/telnetdefault

svcs -a B$rep ssh

disabled @epC+) svc/network/sshdefault

svcs -a B$rep ftp

disabled @epC+) svc/network/ftpdefault

"ere telnet/ftp/ssh all are disabled

e can enable usin$ svcadm command

s,!a" enable s,!-/networ/telnet-"e#a)lt

s,!a" enable s,!-/networ/#t%-"e#a)lt

s,!a" enable s,!-/networ/ss-"e#a)lt

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now if we check all are enabled

s,!s &a '(re% #t%

online Se%0+* s,!-/networ/#t%-"e#a)lt

s,!s &a '(re% telnet

online Se%0+* s,!-/networ/telnet-"e#a)lt

s,!s &a '(re% ss

online Se%0+* s,!-/networ/ss-"e#a)lt

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S1P or SSH wito)t asin( %asswor"

@ource @erver D?-D=

@ource server user oracle

=emote @erver ?!-D=

=emote @erver lo$in drs

)' @8! from @erver D?-D= to @erver ?!-D= without enterin$ passwordon

@erver bkp-dr

' Lo$in as user oracle in to server D?-D= then use

SSH&2e3(en t rsa

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6' 8heck weather authoriIedCke3s %le is available in ssh director3 > authoriIedCke3s

"ere 3ou should be all set to scp from server D?-D= as this user to server?!-D= as the second speci%c user

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