RedhatAS4 enable the telnet process

RedhatAS4 enable the telnet process-Linux Enterprise Application-Linux server application information. See the following for details. 1. Check whether your xinetd service is enabled:
[Root @ db-rman ~] # Chkconfig -- list | grep xinetd
Xinetd 0: off 1: off 2: off 3: on 4: on 5: on 6: off
Xinetd based services:
Note that the check result is enabled (because the telnet service is a sub-service of the xinetd service)

2. modify files
Vi/etc/xinetd. d/telnet
# Default: on
# Description: The telnet server serves telnet sessions; it uses \
# Unencrypted username/password pairs for authentication.
Service telnet
{
Flags = REUSE
Socket_type = stream
Wait = no
User = root
Server =/usr/sbin/in. telnetd
Log_on_failure + = USERID
# Disable = yes
Disable = no // The original yes is changed to no
}

3. Start the telnet service at startup:
Check that it has been enabled
[Oracle @ db-rman admin] $ chkconfig -- list | grep telnet
Telnet: on
Krb5-telnet: off

4. Modify the login file securetty to add the terminal points to be logged on.
[Root @ db-rman ~] # Vi/etc/securetty
Add several pts/x:
Pts/0
Pts/1
Pts/2
Pts/3
Pts/4
Pts/5
......
Save and exit:

5. Test Logon:
[Oracle @ db-rman admin] $ telnet 192.168.0.253
Trying 192.168.0.253...
Connected to db-rman (192.168.0.253 ).
Escape character is '^]'.
Red Hat Enterprise Linux AS release 4 (Nahant Update 6)
Kernel 2.6.9-67. ELsmp on an x86_64
Login: root
Password:
Last login: Tue Aug 19 14:00:10 from 192.168.0.222
[Root @ db-rman ~] #

Test logon is normal. If it is affected by other external factors, exclude external factors, such as iptables and selinux.