i have made a java web server which works on localhost.but now i want to capable it handling many clients at a time.so clients running on different computer need machine name or IP address of server computer.How can i do this in java?
View 1 RepliesOne of our Apache servers, version 2.2.3, is running three virtual hosts on it. However, while two are accessible, gray.mgh.harvard.edu, www.plastimatch.org, the third, cmrol.mgh.harvard.edu cannot be reached by any remote host.
I am at a loss as to why this is occurring. To that end, I am including the httpd.conf file as an attachment in the hopes someone can see what I missed, and help correct this issue.
I cannot access a remote server(Ubuntu) using ssh or even using sftp from my ftp client. I've been accessing this server regularly for many months with no problem until now. There is a web server running and that's OK, so no problems there. I asked the owner of the server if he could access using ssh from within his LAN, which he could! So openssl is working from within the LAN, but not ouside of the LAN. I access the remote server by using one of [URL] free domain names. I'm aware that this service requires renewal or activity at least once a month and as far as I know this is up to date and working OK.
Is this a router gateway problem? I suspect that port 22 has been blocked, but what could block this port? It's been working well for so many months. As far as I can tell the owner of the server/LAN has not been tampering with the router, so what could be blocking port22? I'm currently accessing the server using vnc4server.
Another really weird thing is that when I access the terminal on the remote server via vnc4server and I ssh back to the server using one of [URL] free domain names, it works! So as I understand ssh is accessing itself by going out of the LAN and back to itself. This would suggest that port22 on the gateway router is working. But when I try to ssh from a pc outside of the LAN, I just get timed out!
* openssl working from within the LAN but not outside of the LAN.
* sftp not working.
* domain name from dyndns.com working and up to date.
* Web server is working OK.
I was installed xming application on windows XP & Windows 7to access Linux server's GUI session and i was able to access it using root account but when ever iam trying to access GUI using normal account it is giving some error.I am testing this since it is a freeware.
View 7 Replies View RelatedI would like to experiment a "green" idea of virtual desktop where multiple users are served by a single powerful machine.
I have a server running 24/7. The monitor of this machine is turned off most of the time and the OS is on the login screen.
Other users, in the same local network, use less powerful machines, which could be a thin client or an old Pentium 3 machine. They access their accounts remotely and work with the GUI as if they were sitting in front of the server. Each user sees their own desktop (different themes, screen resolution, etc.). And of course it can happen that several users could log in at the same time.
The usage is modest: mostly web browsing and the usual default applications (office, wine, gimp, etc.). In particular no games or any demanding applications. The users want to use their desktop in graphical mode only.
Question: How do we call this way of using a server? Is it possible with Ubuntu? And how to implement it?
I am looking for an API in JAVA which gives me functionality to copy a file to remote host in secure manner like (SCP).
View 1 Replies View RelatedI was looking for:how to access my Linux machine(OpenSuse 11.3) that is being hosted at my hoster company from my home Win Pc, I found TightVNC , but I am confused, should I install it on both systems ( viewer and server) ? .. what about the VirtualBox , can i Access with that tool or it is only for mounting the local Virtual Machines?
View 2 Replies View RelatedI installed dovecot on my server and now the imap and pop3 ports are open.But when I want to telnet it, it's not possible.Code: Trying 127.0.0.1...telnet: Unable to connect to remote host: Connection timed out.Also I can't any ports else. But I can connect to it from other computers. I tried to connect to this from my PC and it was successful.
View 7 Replies View RelatedWe recently had a vulnerability scan done on our network and one of the vulnerabilities was that the dns server discloses the remote host name when using hostname.bind.
Is there any way that we can stop this from happening? Our name server is a Fedora 11 machine.
Is this possible that a process running on a remote-host only inform nagios when some thing is wrong. Rather then nagios-monitoring-server checking through NRPE every so often. Reason is I want to add too many alerts in the application. And I don't want a whole list of ok messages.
View 1 Replies View RelatedI've recently been asked to setup our FTP server to accept connections from a remote host. They sent me a file "id_dsa.pub" with instructions to add this key to the xfer user.
Unfortunately I've no idea how to do this!
I'm running vsftpd 2.0.5 on Centos 5.3
I've setup vsftpd correctly and it's running fine with local users (in the same LAN). However, when remote users wanna login to the server, it takes more than 1 minute to get in. Users do can login from remote. It just took too long. (It prompted for the username and password very fast.) Since the server is behind a router, I did configure the port forwarding for TCP 20-21. The centos version is 5.3. The vsftpd is v2.0.5.
View 6 Replies View RelatedIf you would share the different options to access MS SQL 2005 using C? We are using gcc compiler.
View 2 Replies View RelatedI'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
When I try to connect to my SUSE server from other one this appears: Remote host identification has changed. I deleted entry in know_hosts but it still working wrong, showing me this message. What could be the cause of this problem??
View 1 Replies View RelatedMany of mails sent from my mail server that are in Queue;The main reason is deffered by domains like yahoo,aol,etc.but there is one more error that i keep getting and that is Host Unknown,Below is an example from mail log,The catch is,test mail sent on the same email id sent from my personal mail from the same server i.e. url was deliveredHowever,another mail containing client information sent from customercare@mycompanysdomain ended up in queue.
There are more examples of the same,around 20 domain have the same problem.
Sep 7 14:33:46 server2 sendmail[24591]: n8793jiC024589: to=<abc@xyz.fi>, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=163672, relay=xyz.fi., dsn=5.1.2, stat=Host unknown (Name server: xyz.fi.: host not found)
Sep 7 22:09:42 server2 sendmail[6407]: n87Gdffa006403: to=<abc@def-fgh.com>, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=152474, relay=def-fgh.com., dsn=5.1.2, stat=Host unknown (Name server: def-fgh.com.: host not found)
With VirtualBox you can share a directory on the host machine with the guest machine. Can you share a directory on the guest machine with the host machine? In my setup the host is Windows 7 and the guest is Ubuntu. Can I have a directory on the Ubuntu file system accesible from Windows?
View 1 Replies View RelatedI have a Ubuntu hosting a Windows XP box (using VirtualBox). The Windows XP box is connected to work using Check Point VPN-1. Essentially this enables me to go to my Windows box and do something like ping comp-at-work and it just works.
I would like to access the VPN resources from the Linux host though. The Windows guest is only there because the VPN client isn't working in Linux. If I could somehow ssh from the Linux host right into my computer at work (using remote desktop would also be great), that would save me a lot of round trips between my Linux host and the Windows guest.
I installed Tomcat5.5.23 on CentOS5.2 running on Sun xVM Virtual Box2.1.2. When i try to view Tomcat( Running in Vitual Centos)'s home page in the web browser of Host( XP sp2) am getting the "Connection Time out" error.. How to resolve this problem.
View 2 Replies View RelatedI have found many examples out on the www for creating udp servers with sockets. The problem I am running into is after I receive the packet from a host I need to be able to send a custom made packet(I'm using RawIP / NetPacket to make my packet) back to this host. The only way to do this is seemingly through the send() function. This function however doesn't appear to allow me to specify which host to send my packet to.
View 2 Replies View RelatedI have been using the Centos 5.4 live CD to do volume resizing etc for root volume which can't be readily dismounted. I have also been using it to clone systems. It is a really great tool - even offering the same GUI interface I have come to know and love...One added feature which would be great for me would be to package "nx server" and/or "webmin" with it so it can be used to maintain remote and "headless" servers.
That way - when heavy duty maintenance is required on a remote system - the sysadmin (me) could ask the site owner to boot with the live cd - and do the rest remotely. Also it would make maintenance of headless servers easier.I'm not sure whether the live cd is inherited more or less complete from the upstream provider - or whether it is completely re-packaged at centos. I'm also not sure how technically difficult it is to re-package a live cd with extra services.
I had remote desk running on a machine and I went downstairs the other day, turned it on, and someone was controlling the machine. Of course that's partially my fault since there was -zero- rd password set. However, my question is how did this person figure out my IP and get past the router to the machine? I don't have any forwarding setup. My router admin password is (has always been) strong. I guess my question now is: Is there anyway to restrict rd access to the local network?
View 9 Replies View RelatedI need to output of the script to the remote server via redirect. I created a simple script for your reference.Quote:
#!/bin/bash
W=`/usr/bin/w`
FREE=`/usr/bin/free`
[code]...
I would like to read and write to a folder in an Ubuntu VPS remotely via a Windows Explorer (Windows 7 Ultimate). Considering that my VPS has very little resources (128MB RAM), what program should I use?
View 2 Replies View RelatedI run a system that users may log into either remotely or physically. Multiple users may be logged in simultaneously because of the remote access, but only one user can be physically logged in at a time.With the current setup, however, if the physical user inserts a flash drive (which the OS mounts automatically) then the remote users gain access to the removable media.
View 6 Replies View Related1)We need to do a clean up a folder in a remote unix server . What is the best option to connect to remote server? how do we use ssh ? Is there any prerequisite to use ssh?
2) We have to SCP few files to another folder in a remote unix server . I formed the below command to use in script. Is it of correct usage? scp -r $POS_HOME/posctl [login nameip address:/home/username/directory]
I have seen public key/private key generation part for SCP. How do we handle this? Does this need to be done as unix admin?
I have a webGUI in php where users can make certain settings. How can I edit a file on a remote server from my php webserver? Currently I use my FTP client, vsFTPd and a chrooted user in a specific directory where the file resides. I think this is pretty save as long a nobody else uses my FTPclient. How can I make changes to this file on the remote server from within my php-code on my webserver ?? (so that not I need to make the changes but my users can do it from a html-form) I found this but the credentials for the FTP-connection are plain :
<?php
$file = fopen ("ftp://loginasswd@server", "w");
if (!$file) {
echo "<p>Unable to open remote file for writing.
";
[code].....
I use https for the webGUI, but I guess this does not mean the connection to the remote server will be encrypted also ? Can I use my FTP-user (has no shell) from within php to edit the file ?
when the user clicks a button (assume war application) and the action'system.out.println' a message, how can I *remotly* read this message (read the message from a different computer instead of the server)?when I use the eclipse, I can read it from the console but if I'm in adifferent location, how can I see this message remotely?I'm thinking about remote debugging (JPDA), however, it's very difficult to configure in order to make JPDA run. I tried based on tutorial of google search, bug failed.I wonder if remote debugging can actually solve my problem. If not, is there any other to solve
View 1 Replies View RelatedI can get a dynamic image to display in my webpage<td><img src="<? echo image.php" ;?>"where image.php is some ones example that outputs some characters to screen.All works fineBut the site is ssl,and It wont load the "foreign" object for security reasons.I was wondering I cURL could trick the browser into thinking that the image source is still on the same serverlike
<?php
$remote = 'https://example.com/image.php';
curl_setopt($ch, CURL_SSL_VERIFYPEER,0); // for testing
[code]....
We have ubuntu server and bind9 installed and setup.When I issue rndc reload or /etc/init.d/bind9 reload I got this:rndc: connection to remote host closedThis may indicate that* the remote server is using an older version of the command protocol,* this host is not authorized to connect,* the clocks are not syncronized, or* the key is invalid.If I issue named-checkconf /etc/bind/named.conf I got this:/etc/bind/named.conf.local:165: unknown key 'rndc-key'I got the key files in the right location but I'm not sure if we even need to use them.
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