I can't telnet to mail server. when I try
# telnet mail.domain.com 25
Trying xxx.xxx.xx.xx...
telnet: connect to address xxx.xxx.xx.xx: Connection refused
telnet: Unable to connect to remote host: Connection refused
but when it's
# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
220 mail.domain.com ESMTP
it connects. I don't have a firewall
I decided to disable Telnet in my server. I get an Article ::
1. Login to your server through SSH and su to root.
2. Type pico /etc/xinetd.d/telnet
3. Look for the line: disable = no and replace with disable = yes
4. Now restart the inetd service: /etc/rc.d/init.d/xinetd restart
5. Turn off it through chkconfig as well because it can still start through that.
/sbin/chkconfig telnet off
6. Scan your server to ensure port 23 is closed.
nmap -sT -O localhost
Also run ps -aux | grep telnet and if you find anything other than "grep telnet" as result kill the process.
But /etc/xinetd.d/telnet doesn't exist in my server.
For some reason, one of the servers can't connect to my mail server. Whenever a user tries to send email from that server to my server, the message won't go through and I see the following in the logs (var/log/exim/mainlog):
2007-02-13 23:56:06 SMTP connection from (***.ca) [***.***.***.***] lost while reading message data (header)
this problem occurs only with this ***.ca mail server (as far as I know).
In fact, trying dnsreport.com tool on any of my server domains, I am getting the error message
"ERROR: I could not complete a connection to any of your mailservers!
******.com: Timed out [Last data sent: RCPT TO: ]
If this is a timeout problem, note that the DNS report only waits about 40 seconds for responses, so your mail *may* work fine in this case but you will need to use testing tools specifically designed for such situations to be certain.
I use cpanel.
Is there any way to disallow connections to SEND mail FROM my server to specific IPs? (Similarly to how you can limit connections to sshd from certain IPs)
I realize I cannot disable everything completely, as yahoo and the likes will have to connect to deliver mail. But no one of any use is going to try and connect to send mail, but a spammer.
No one has gotten in and abused it as of yet (knock on wood), but SMTP is being restarted at random and I can only imagine that this is being caused by one of these scumbags probably ddos'ing me. It takes eons to browse these logs, even if they restart via logrotate periodically!
Warning: fsockopen() [function.fsockopen]: unable to connect to mail.userdomain.com:25 (Connection timed out) in /home/user/public_html/_inc/class.smtp5.php on line 122
Message could not be sent. Mailer Error: Language string failed to load: connect_host
Using php 5 with phpsuexec enabled.
basically i cant find any straightforward info on how to use telnet, how to administer users, add/remove etc.
View 5 Replies View RelatedI need help with understanding the difference between Telnet and SSH. I am in the process of signing up for a hosting plan and I have asked the sales rep if we will have telnet access. Their reply was that we have full root access via SSH.
Any help that anyone can offer on the differences and benefits/drawbacks would be much appreciated.
I'm looking to run this small telnet script to reboot my router using vistas built-in telnet client:
192.168.1.1 23
WAIT "login"
SEND "my_login_idm" (enter your login ID here)
WAIT "Password"
SEND "my_login_passm" (enter your password here)
WAIT "#"
SEND "rebootm"
WAIT "#"
...without much luck.
I have the problem that I can't connect to my mailserver tru the mail client (Webmail works fine, I receive mails and can send mails)
But if i try to connect over mailclient I get this error in errorlog:
couriertls: connect: error:1408A0C1:SSL routines:SSL3_GET_CLIENT_HELLO:no shared cipher
What can I do to get connection over mailclient?
I am having trouble uploading a 500mb file with File Manager in the control panel as well as SmartFTP. I was told to upload this large file through Putty. I able able to login through SSH as root, but i can't seem to find the right directory to upload this file into. This file is a backup file of the home directory. I am transferring all files from my old host to my new host. How would I find the right directory and upload this file through Telnet.
View 0 Replies View RelatedI have a script that makes a request via telnet and it worked on my old server, but not on the new one.. Heres what I'm doing
telnet localhost 80
GET /files/downloadFLV.php HTTP/1.1
Host: www.soybe.com
I get this back:
HTTP/1.1 404 Not Found
Date: Sun, 08 Jun 2008 06:34:25 GMT
Server: Apache
Last-Modified: Tue, 18 Mar 2008 06:52:59 GMT
I know that /files/downloadFLV.php does exist, so I'm thinking it could be an issue with the Host: part of it, any ideas?
if i try to telnet to yahoo's mail server, i get this:
[root: #] telnet mx1.mail.yahoo.com 25
Trying 4.79.181.14...
telnet: connect to address 4.79.181.14: Connection timed out
Trying 4.79.181.15...
telnet: connect to address 4.79.181.15: No route to host
Trying 67.28.113.11...
telnet: connect to address 67.28.113.11: No route to host
Trying 67.28.113.10...
telnet: connect to address 67.28.113.10: No route to host
but it works from one of my other hosted servers.
this keeps mail building up in my queue as it cannot send mail out cause the connection times out.
I can telnet locally to send myself email. This is my own dedicated server.
i have no idea whats up - default policy is ACCEPT in the OUTPUT chain of iptables.
i want to know how EXACTLY connect more than server with one domain
i will explain what i want [note : sites & ip all for example below]
i have a site name [company name] is www.comanyname.com
and i have two servers [client servers] with the following dns
server 1#
ns1.companyname.com pointed to ip 192.168.1.1
ns2.companyname.com pointed to ip 192.168.1.2
server 2#
ns3.companyname.com pointed to ip 10.0.0.1
ns4.companyname.com pointed to ip 10.0.0.2
now i want to make a NEW domain name like
www.companynamedns.com
and i want this domain hold all client's servers [want to spilt the company dns of the client dns], like
ns1.companynamedns.com
ns2.companynamedns.com
ns3.companynamedns.com
ns4.companynamedns.com
vip.companynamedns.com
s1.companynamedns.com
i can make any name server like i want,
so the first thing it must to be all server's ip that i want to connect to the domain companynamedns.com in www A record and mx record too
and if u ping to companynamedns.com every time it give you random ip [cuz i put www a record for more than server with same one domain name]
so this way not very cleard for me and i want to know
how can i add the www a record?
should i create a dns zone in any server but this entry in one server in whm [note i use cpanel/whm]?
and put the www A record with new domain name companynamedns.com for every time i get a new server like i add www A record this
companynamedns.com 1 A 192.168.1.1 14400s
companynamedns.com 1 A 10.0.0.1 14400s
companynamedns.com 1 A 10.10.10.1 14400s
companynamedns.com 1 A 11.11.11.1 14400s
and mx record like this
companynamedns.com 1 TXT v=spf1 a mx ip4:192.168.1.1 ip4:10.0.0.1 ip4:10.10.10.1 -all 14400s
but how about the ns record?
should i but all ns record in the dns zone in whm?
[note : there is another company make this trick and he have alot of name server NS but i didn't see all registred in dns records only 2 NS for the site And pointed to one server only]
so how can the client connect the the server with ns that the main domain name companynamedns.com already did't added the others NS in the dns zone
like A client make the nameserver for his site is
ns22.companynamedns.com
ns23.companynamedns.com
but the DNS Records for the companynamedns.com is ONLY
s1.companynamedns.com
s2.companynamedns.com
so how the ns22 and ns23 working and it didn't even added in the dns zone in the main domain companynamedns.com
maybe he add all the name server he want in the domain control panel in the child name server only not in the name server but i think it didn't work it must be add in the name server too
i really going to be CRAZY for this
this trick is the right way to connect more than server with one domain name
i colored the thread to read and get my idea easy and i really need expert help me with that issue
How Can I Blocks back connect from web server
The server is with visiteur connection
I try Every Firewall
what is the best way?
My Plesk 11.5 server will not connect to my SQL 2008 server. It runs on a Windows 2008 server. I have turned the Windows firewall off. The servers are on the same IP subnet. I can ping the SQL server by name and address, remotely Login successfully using SQL management studio, and map a share to a drive.
The SQL server is in Mixed Mode. I can telnet to port 1433 and login. The SQL server has TCP/IP enabled. Connections made by web sites - mostly ASP driven - connect normally. The Plesk console fails to connect with the following error -
Error: Test connection to the database server has failed because of network problems:
Get database server version failed: Login failed for user '????'.
(Error code 1)
I have a few users that have a hosting account with me and are trying to connect to their own MySQL servers elsewhere. Both said that they are able to connect to the MySQL server with other hosting accounts but not the ones hosted with me. I asked if they had setup permissions to allow remote connections from my server and they confirmed that they did.
What am I missing? Do I need to configure my firewall somehow? I figured the connection is just using port 80 since it's from an PHP script right?
Do you guys know anything about this?
My server works perfectly with INSERT, UPDATE, DELETE for mysql.
but after like 12 hours later, my application crashes and I get this
"Can't connect to MySQL server on 'localhost' (10055)" and I would have to restart my applications and everything will be working perfectly.
Do you guys have any idea why this happen?
I do have a lot of connections coming in and out of my server. Would that mean anything?
mysql_connect() [<a href='function.mysql-connect'>function.mysql-connect</a>]: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
/home/thesymbi/public_html/includes/class_core.php on line 274
I get this around 50 times a day!
I am fed up!
i rent a server,and i also have a printer on my office, how can i connect my printer with my server,and remote print?
View 6 Replies View RelatedWhen i go to my website or any page under the domain it's just white. Blank nothing, nada.
"Failed to receive status information from Apache. Unable to connect to local httpd server."
This error message appears when i click on "apache status".
Is this because of the network issue? Or is it because of something I did myself?
I did a google search and came up on some solution, I did them and nothing.
We have many clients with same issue, when they try to connect into outlook they get a msg like this (print).
None of all them has the same issue, but a few of them.
When i restart all email services things works, but 30" later come back again...
The setup:
2wire BT router (Firmware 6.1.1)
1 Server (Dell) Hardware with NICs (Server is connected to router via Ethernet Cable)
5 Static Ip addresses purchased from BT
Server OS is Centos 5.2
All laptops (5) are able to connect to the net wirelessly. I just did a standard installation of the Centos following [url]
I then tried
Code:
yum update
but it times out. I have no remote access to the server. I can only connect when i am on the router. I have seached, read and tried so many sites and commands but it just is not working. I have had this problem for about a 6 days.
Its a long story but basically this server setup has become a nemesis.
I don't mind providing remote access to the server and router admin page if needed. I am in London btw.