Hi,

Could anyone tell me:
1. How to add the "Telnet" daemon in the Service Configuration in Red Hat EL5?
2. How to restrict root logon, but at the same time I can also use the scp command?

Thanks.

1. please don't do that unless you want to get hacked.
2. In sshd_config set (comment out)

#PermitRootLogin yes

ie do not allow root login.
Instead, create a non-priv user and use that via ssh/scp and then 'su -' or use sudo to gain root privs as reqd.

Hi Chris,

Thanks for the info.
In question 1, would it be safe if the firewall is enabled? I have another server running EL4 which has the telnet daemon in the Service Config. I don't know how the previous user set that up. Is EL5's setup different than EL4? Should the telnet daemon be set up in the initial installation? I don't remember which section that requires that setup during installation.

Thanks,
J_Feet

The prob with telnet is that everything, inc username/passwd is sent in plaintext, so stealing that info is trivial.
Please use ssh if you possibly can, or email your boss and cover yourself...
Firewalls only restrict what can connect to where, it can do nothing about the protocol.
If you want to disable it, it should be under the /etc/xinetd.d dir, iirc.

(Web analogy:
telnet = http
ssh = https
)

HTH

Hi Chrism01,

I am doing some search on how to xmanager to log in RHEL5 and some article said I need to setting

#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 = no
}

I do not even have such a file before I turn on telnet seems.

Please let me know how to turn it on?

Thanks.

You would need to add the telnet-server package with up2date/yum

i downloaded the dvd medium from website, just install rhel5 for own interest. So I did not register. It is said unregistered copy can not automatic update?

In that case, get CENTOS instead. Its a free version of the full RHEL, with updates.

Thanks Chris,

Will do. Already start thinking that way. Probably will replace it with Centos in the future 2 months time.

Dear friends,

I also have same problem.

Currently i have installed rhel 5 client version(telnet-server-2.6.18-8. el5xen)

But due to some technical problem now i want to install RHEL 5 server version.

From where can i get the os image (for vmware).I don't have cd media for that.

pls help