01-14-2006
telnet, ftp is running but can't connect from outside
Yesterday, I and all my users couldn't connect to my server using ssh, telnet or ftp even though they were running (keep getting "connection timed out" error message).
This morning, my partner logon from the main console, restarted sshd and xinetd (I belive he didnt restarted the server), now I can ssh to my server, but telnet and ftp is still not accepting any connection from outside (I can telnet and ssh within the box). I believe this is because somehow my server doesn't accept any connection to port 21 & 23 even though they are open
Quote:
PORT STATE SERVICE
21/tcp open ftp
22/tcp open ssh
23/tcp open telnet
25/tcp open smtp
80/tcp open http
111/tcp open rpcbind
143/tcp open imap
443/tcp open https
587/tcp open submission
993/tcp open imaps
10000/tcp open snet-sensor-mgmt
Is there anyway I can fix it and what caused it?
Ps: My server is recently installed java 1.5 which have few issues with gentoo (the OS it's running). However, I only left it as user VM, and set 1.4.0.5 as server VM. But somehow, serverVM was changed to 1.5. So maybe this is the reason for the problem above?? But it doesn't make any sense to me
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LEARN ABOUT OSF1
telnetrc
telnetrc(4) Kernel Interfaces Manual telnetrc(4)
NAME
telnetrc, .telnetrc - Specifies setup commands for a telnet session
SYNOPSIS
$HOME/.telnetrc
DESCRIPTION
The .telnetrc file contains the setup information for a telnet session. It is a hidden file in your home directory and must be readable by
the user logging in.
The file can consist of multiple entries for each remote host to which a user can connect. A remote host entry consists of multiple lines.
The first line is the name of a remote host. The subsequent lines must begin with blank spaces, and contain telnet subcommands. These sub-
commands are processed as though they were typed in manually. Lines beginning with a number sign (#) are comment lines. See telnet(1) for
a complete list of telnet subcommands.
To specify subcommands that apply to all systems, create an entry, using the word "DEFAULT" as the system name, and specify the telnet sub-
commands in the subsequent lines.
EXAMPLES
The following shows a sample .telnetrc file:
# Beginning of telnetrc file # Default subcommands that apply to all systems DEFAULT
environ undefine USER # First system entry system1
set echo
toggle crlf # Second system entry system2
set echo
mode line
toggle crlf
FILES
User-customized telnet startup values.
RELATED INFORMATION
Commands: telnet(1). delim off
telnetrc(4)