OpenSUSE :: Unable To Use Telnet To Connect To Smpt Server
Apr 17, 2011
I'm using something like telnet [URL] 25 and it comes back as not being able to connect to host on port 25. I don't have port 25 blocked anywhere. I turned off the firewall and even opened up port 25 on the hardware firewall router. If I ping it I can connect.
My system is Ubuntu 11Before I typed "telnet localhost" or "telnet localhost 23". I have make this work below:$sudo apt-get install xinetd$vim /etc/xinetd.conf
when i try a telnet to a host like that: telnet 10.10.10.10 1234 i got this: telnet: Unable to connect to remote host: Connection refused.
1/ does this mean that the problem is not due to a firewall, but that the host 10.10.10.10 doesn't listen on the port 1234? other way does this mean that my firewall is authorizing traffic on the port 1234?
and when i try a telnet on another port like that: telnet 10.10.10.10 1235 i get: Trying 10.10.10.10 ...
in this case this
2/ does this mean that the firewall is blocking the traffic between my host and the 10.10.10.10 on the port 1235?
I am running CentOS 5.1 on VMware on Win 7 On CentOS I added Bridged network adapter and the server is connected to internet without any problems, but when I telnet any server on port 25 I get connection timeout.
Code:
telnet f.mx.mail.yahoo.com 25 Trying 98.137.54.237... telnet: connect to address 98.137.54.237: Connection timed out telnet: Unable to connect to remote host: Connection timed out
I stopped all servers, iptables and sendmail on the linux server and the firewalls on the win 7 but still getting the same error! I added new network adapter ( host-only ) and tried to telnet the win machine from vmware Linux but I got connection refused
Code:
telnet 192.168.71.1 25 Trying 192.168.71.1... telnet: connect to address 192.168.71.1: Connection refused telnet: Unable to connect to remote host: Connection refused
I am doing some R&D on 11g RMAN in oracle at home. i have installed oracle enterprise linux and i have installed oracle software. when i am trying to configure listener, it is error-ed out. i have verified that telnet with the port is not working and i am seeing connection refused error.
I would like to make a telnet connection to one server. I can't do this at first beceause i necesary to connect to another server. I use the program putty and this is the command to connect to my first machine:
I'm trying to setup PS3 media server on my new OpenSuse 11.2 and I'm being unable to connect to the PS3. The multimedia server seems to being working ok, only it has not appear on XMB.
I've been searching on PS3 Media Server forums and try a couple of solutions regarding /etc/hosts and adding full qualified domain name of server to it, but it doesn't seems to work.
I have been beating my head for the last few weeks on this problem, (although I have been taking the wrong approach, it seems).
I need a gateway to direct web traffic to three separate servers/domains. I have been trying to do this with both a dns server and , (seperatly), apache server to forward requests. The dns server was a no go, and <i can only get apache to redirect http and ftp.
After Googling this ALOT, I believe that what I need is a gateway server to redirect my traffic to the 3 different servers. I have been reading about using using nat and iptables for this and was wondering if anyone had any advice/suggestions on this. The other thought I had was to use something like pfSense to create the gateway, but I am still reading the documentation, and I am unsure if this approach will work.
I've a Windows 7 host OS and I've installed Fedora 11 as a Virtual OS using Virtualbox.I want a friend of mine to connect to my Fedora server using telnet from internet. What I would like to know is how do i configure my Virtualbox to allow my friend to connect to my server. Also, is there any setting I need to change in Fedora to allow this?
Why am I not able to telnet to a Windows server machine? Is it because the telnet server is not running there? A remote desktop connection works though.
Does a telnet server run by default on a Unix machine?
I'm having a real problem with intermittent ssh disconnections?It's the same thing regardless if it's over ethernet or wireless, and nfs shares don't have any problems at all.
I'm trying to make an SSH script for my place of employment. This script, I want to go out to the server hostnames we have specified (in another file) and change a users account password. We use Kerberized telnet, so if telnet root hostname fails, I want it to use ssh username hostname and use the old password (specified). If both fail, I want it to ask the user what the port should be and input the port in the ssh command.
But I'm having a issue having it try telnet root hostname and if it fails then, try to ssh in, I have no clue how to have it proceed. Is it an if statement? Here's the telnet failed message: telnet: Unable to connect to remote host: Connection refused
I setup my mail system on a clean install of Postfix and Dovecot from URl...on the:URL... part everything checks out yet when i input the details into Apple Mail it tells me That it Can't connect.I can Connect via Squirrelmail and telnet but not through mail.also my /var/log/mail.log s not recording anything and my mail.log.1 only goes up to april 6
I have a customer who is complaining that they can connect to prt y on IP x with telnet. They are seeing the following:
telnet x.x.x.x y Trying x.x.x.x... Connected to x.x.x.x. Escape character is '^]'.
after some time the connection of course times out. Connection closed by foreign host. There is no telnet service running on this port so they cannot do anything, but they are complaining tht the fact that telnet "connects" is a security risk. I am having difficulty explaining why they are able to connect with telnet. I know it has to do with the socket layer API in Linux but I am having difficulty explaining this sufficiently. I also can't just say "this is the way linux works" to them. I am looking through "UNIX Network Programming" by W.
I want to create script wherein it will check the application if its running. The command that I'll be using to check the application is telnet (if you can recommend others, that's ok). I've an application and it is listening to port 1808. If I do telnet localhost 1808, the response is :
What I want to happen is if the response is like to code above, it will execute a commands. Obviously, above code knows that the application is not working so I need to execute a commands. I created a script before using expect but I don't think it will work because I haven't establish a shell yet unlike successful telnet I could spawn expect.
setting it up to handle one of my email accounts as a start, i can get evolution to receive mail but not to send. in outlook, i have to change the smtp port from 25 to 587 for high-speed connections. otherwise the server blocks, and i feel sure that's what's causing my problem in evolution: i can't find where to change the port to 587.looking through some other posts here, it seems like it may not be possible through the evolution gui. if not, are there things i can enter from the terminal that will carry over into evolution settings? if there are (or better: if it can be done in evolution after all
I was just checking the configuration file of /etc/xinetd.d/krb5-telnet and i thought of enabling the telnet.I modified the configuration file accordingly and restarted the server.
Code: # cat /etc/xinetd.d/krb5-telnet # default: off
i am on CentOS 5.5 ,and unable to do the Telnet. SElinux is in Permissive mode and firewall is off. below are the details for the help. i tried it before and after disabling the firewall and SELinux.
I run my own mail server. There's only one part that isn't working and I can't seem to figure out why: sending mail from a client - in this case, Thunderbird.
I can send mail off-server just fine if I log in via telnet. I can receive email just fine with Thunderbird.
linux 5.4(RHEL) and window machine are pinging nicely.able to access window on linux but not linux at window(xp)? xinetd is running on linux as well as telnet service is also running on xp.
I am trying to find the difference between the above two services. Both are under xinetd and can someone please explain the difference between them (is one more secure than the other one?)