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• Cyrus IMAP: Unable to connect to remote host: Connection refused

  - by Nick

  I'm working on setting up a Cyrus 2.2 IMAP server on Ubuntu Server 9.04. If I telnet from the server itself: # telnet localhost imap I get: * OK IMAP Cyrus IMAP4 v2.2.13-Debian-2.2.13-14ubuntu3 server ready Which is what I should be seeing. If I try from another machine on the network: telnet 192.168.5.122 imap I get: telnet: Unable to connect to remote host: Connection refused UPDATE: From /etc/cyrus.conf # add or remove based on preferences imap cmd="imapd -U 30" listen="imap" prefork=0 maxchild=100 imaps cmd="imapd -s -U 30" listen="imaps" prefork=0 maxchild=100 #pop3 cmd="pop3d -U 30" listen="pop3" prefork=0 maxchild=50 #pop3s cmd="pop3d -s -U 30" listen="pop3s" prefork=0 maxchild=50 #nntp cmd="nntpd -U 30" listen="nntp" prefork=0 maxchild=100 #nntps cmd="nntpd -s -U 30" listen="nntps" prefork=0 maxchild=100 To the best of my knowledge, there is no firewall running on the box. I've tried restarting the saslauthd and cyrus2.2 daemons, with no effect. What else can I try?

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• how to bypass internal DNS?

  - by fabjoa

  This is about Ubuntu but should be pretty much the same on all Linux flavors. Let's say I add an entry to my /etc/hosts such as 127.0.1.12 facebook.com and an Apache virtual host such as <VirtualHost 127.0.1.12> ServerName facebook.com DocumentRoot /var/www </VirtualHost> when i open my browser and send a GET request to facebook.com, firefox will browse my /var/www folder. Question: How could I fetch (ie, using wget in bash) the real facebook.com domain - without erasing the entry in /etc/hosts nor my Apache VirtualHost -- IOW how could I bypass internal DNS?

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• FTPS SSH Host Key after IP Address Change

  - by David George

  I have a Secure FTP (FTPS) server that my remote sites to upload files to daily via scripted routines that run. I have had issues in the past when upgrading hardware and deploying new servers causing the RSA Fingerprint to change for that server. Then all my remote sites can't connect until I have the old key removed (usually via ssh_keygen -r myserver.com). I now have to change the IP address for myserver.com and I wondered if there is anyway to proactively generate new host keys so that when the server address changes all my FTPS client remote sites don't break?

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• Custom/personal dyndns solution?

  - by Eddie Parker

  Hey: I can't think of how to make this work, but it seems like something that should be doable.. I currently own my own domain, and have been using dyndns.com's "custom DNS" to allow me to redirect 'example.com' to my website at home, which is on a dynamic IP. I've now switched over to a VPS solution which hosts my website and allows me root access to a box (me likey), which will now host "example.com" on a static IP. My question is, is it possible for me to somehow make "home.example.com" route to my box at home? Is there any software available that could automate updates to the DNS for this? Ideally I'd like not to pay a service if possible, but if that's the only way then I suppose I'll have to go that way. Thanks!

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• Cross-submission robots.txt for multiple domains on single host

  - by sidd.darko

  We are running a site with multiple languages hosted in a single environment on IIS7. For example, oursite.com - english oursite.de - german oursite.es - spanish This is a single-host environment. All of these sites are in the same application space on the same physical machine. I need to do cross-submission of sitemaps via robots.txt. Looking at the sitemap.org guidelines for this suggest this is possible, but the example indicates different physical machines. Will the following entries in oursite.com/robots.txt work? http://www.oursite.com/sitemap-oursite-de.xml http://www.oursite.com/sitemap-oursite-es.xml

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• How to host multiple mail domains with courier?

  - by Dave Vogt

  I had my server set up with generic aliases in /etc/courier/aliases/users, which worked fine. But today I wanted to host some new domains, where addresses overlap. What I need is that [email protected] goes to account "dv", but [email protected] goes to account "d2". So I set up a new file containing fully qualified addresses ([email protected]: dv) instead of the previous dave: dv. But somehow, courier-smtpd doesn't accept mail to these addresses anymore. makealiases -dump prints all the aliases the way they should be.. so i'm a bit stuck.

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• slow network in centos5 VM with centos5 host running KVM

  - by dan

  I setup KVM following the guide here: http://www.cyberciti.biz/faq/centos-rhel-linux-kvm-virtulization-tutorial/ I setup a bridged network and it worked fine except that the transfer speed is 200KB/s instead of the gigabit speed that I get on the host machine by itself. I tried editing the guest network settings to set "model=virtio" http://wiki.libvirt.org/page/Virtio but this just moves ifconfig-eth0 to ifconfig-eth0.bak in the VM and networking doesn't work at all. I tried moving ifconfig-eth0 back and starting up eth0, which works, but now the transfer speed is ~ 60KB/s I have no idea what else to try. Any suggestions would be greatly appreciated.

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• Cyrus IMAP: Unable to connect to remote host: Connection refused

  - by Nick

  I'm working on setting up a Cyrus 2.2 IMAP server on Ubuntu Server 9.04. If I telnet from the server itself: # telnet localhost imap I get: * OK IMAP Cyrus IMAP4 v2.2.13-Debian-2.2.13-14ubuntu3 server ready Which is what I should be seeing. If I try from another machine on the network: telnet 192.168.5.122 imap I get: telnet: Unable to connect to remote host: Connection refused To the best of my knowledge, there is no firewall running on the box. I've tried restarting the saslauthd and cyrus2.2 daemons, with no effect. What else can I try?

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• Dual Monitor difficulties (VirtualBox ubuntu host) - rdesktop sessions mirror

  - by rukus5

  I am running ubuntu 9.10 host with a Windows guest and need to extend my guest windows desktop into the second monitor (otherwise I will have to convert to a dual boot situation because this is a work furnished computer, please HELP!!) Current Situation: Windows Guest Running with VRDP enabled and successfully connecting. Guest Additions running and VBox set to 2 monitors and I see two monitors in display settings. connecting via 2 different rdesktop sessions mirrors the display. even though display settings of Guest Windows is set to extend desktop. is there a rdesktop option to signify to the VBox it is the second display? I need the second connection be the second display. any ideas?

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• PHP script timed out, or otherwise killed on Apache under CentOS (shared host)

  - by MarkS

  When trying to run a PHP script (CentOS, Apache, PHP 5.2), that may take a long time, it is apparently killed after 45 minutes. PHP script is invoked from a web browser, and in certain situations, it will do a lot of work processing a POP3 mailbox and sending emails as part of an automated monitoring system. Running the PHP script from the command line might be a better option, but I want to understand what is going on so far. I ran a test script, and it appeared to finally give an internal server error (500?) after 45 minutes. Where is this limit set and what is killing the script, if that is what is happening? It's running on a shared host on Hostgator.com.

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• slow network in centos5 VM with centos5 host running KVM

  - by dan

  I setup KVM following the guide here: http://www.cyberciti.biz/faq/centos-rhel-linux-kvm-virtulization-tutorial/ I setup a bridged network and it worked fine except that the transfer speed is 200KB/s instead of the gigabit speed that I get on the host machine by itself. I tried editing the guest network settings to set "model=virtio" http://wiki.libvirt.org/page/Virtio but this just moves ifconfig-eth0 to ifconfig-eth0.bak in the VM and networking doesn't work at all. I tried moving ifconfig-eth0 back and starting up eth0, which works, but now the transfer speed is ~ 60KB/s I have no idea what else to try. Any suggestions would be greatly appreciated.

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• Fedora vs Ubuntu to host Subversion and Bugzilla over Apache

  - by Tone

  I'm not interested in a flame war of Ubuntu vs Fedora vs whatever. What I am interested in is whether or not I should move my current Ubuntu server to Fedora. I have been able to get Subversion setup and hosted via Apache over https and it works quite well (I'm a .NET guy so this was all new to me). I'm having trouble though with installing Bugszilla - have run into some issues getting all the perl scripts to run successfully so my questions are: 1) Will Bugszilla will install easier on Fedora? Can I just install a package instead of having to download the tar.gz file and untar it, run perl scripts, etc. 2) Is Fedora considered to be a better production server system? I have no desire for a GUI, just need it to host Subversion, Bugzilla over Apache2, and act as a file and print server for my home network.

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• Data transfer to my own computer from a website host by the same computer

  - by gunbuster363

  Hi all, I have a question about using a web site host in my computer, say Computer A, using any web server hosting application e.g : apache. I connect to my website in my very same computer A, and request to download a file of size 1Mb, in otherwords, I am connecting to my own computer and want to download a file in my computer. In addition, my internet access is bound by a proxy server in a way of gateway. The questions are - does the file transfer really exist? Or is it a local file copying between 2 location? Will my data packet go through the proxy, to the internet, and go back to the proxy and return to me? Thanks everyone who are watching this question.

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• Virtualbox 4 hangs when trying to install ubuntu guest on ubuntu host system

  - by misterjinx

  I'm trying to install ubuntu server using virtualbox 4.0.4 in a ubuntu 10.10 host OS. I have the iso image on my hard drive which I used to perform the install. I edited the settings and added this image at the storage section, selected it as a primary master, so I could boot from it and start the install process. But now, each time I start the installation, at the very beginning or if I'm lucky, after I click on the install link at the welcome screen, the process hangs and all the computer is blocked. This happened 3 times already. I even tried to perform the installation using an old CD I had with the 9.10 server version, thinking that the iso image might be the issue, but the problem still persists. I dont know what could cause this problem. My computer is a dell laptop with AMD processor (I dont know if this is important). Any help is very appreciated.

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• Unknown MySQL server host - connection problem

  - by Zukas

  I am new to databases and I have been asked to look at a few tables and see how many records they have and some other information. I cannot access phpMyAdmin through cPanel, which is how I've always done it on my own server. I decided to download MySQL Workbench. I enter in all the information is asks: Hostname: mysite.startlogicmysql.com Port: 3306 Username: user. I press connect and get this Unknown MySQL server host 'mysite.startlogicmysql.com' (11004) Am I using the wrong hostname? I've seen a server name, a hostname in the server variables list which is something like custsql.eigbox.net and the server itself is custsql.eigbox.net In both cases the custsql is a little different than what I posted. I am not sure which one to use. If there is anything else anyone needs to know I can tell you. Tanks.

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• How to Host Multiple Domains / Web Sites on one IIS6 Server

  - by Josh Stodola

  I currently have an IIS6 server that hosts one web site/domain. I am developing another web site (completely separate) that I want to host on this same server. Both domains were purchased from GoDaddy. I believe I will need a server-side ISAPI rewrite filter to internally route the incoming requests based on the domain name. I plan to use Ionic's ISAPI Rewrite Filter to do this because it is free. I know how to install the ISAPI filter and apply it to a web site in IIS, but I have no clue how I am going to route the incoming requests correctly (based on the domain). Also, I don't know if it is wise to setup multiple "Web Sites" or "Virtual Directories". I am thinking that this will depend on how the configured. How should I go about getting this accomplished?

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• How to access my local host server from internet

  - by rahul.p.33

  How to access my local host server from internet have installed WAMP server on my Windows XP, And i had created a index.php file in my root folder, and i assigned a virtual name to my localhost. eg: earlier i accessed my index.php via: Code: http:// localhost/ index.php but now i can access like : Code: http: //www. mysite. com/index.php but the problem is that i can access this from my computer only.. how can i use it from internet.. please help me.... Thanks.

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• How to access my local host server from internet

  - by rahul.p.33

  How to access my local host server from internet have installed WAMP server on my Windows XP, And i had created a index.php file in my root folder, and i assigned a virtual name to my localhost. eg: earlier i accessed my index.php via: Code: http:// localhost/ index.php but now i can access like : Code: http: //www. mysite. com/index.php but the problem is that i can access this from my computer only.. how can i use it from internet.. please help me.... Thanks.

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• Apache virtual host for drupal test site

  - by bsreekanth

  Hello, I am a programmer, trying to launch my first website.. through different helpful posts in sf and others, I setup an account with Linode and set up a slice (Debian, Apache, ..etc). I have a Drupal site under development, and like to have a test site in the Linode server as well. Now, I like to have a site setup with the following requirement. What is the best way to setup and protect the test site along with the actual (production) site?. Is virtual host is the answer? To protect the test site, is .htaccess authentication sufficient to prevent access from public and robots? I also modifying the theme, database contents etc, so having two sites under one drupal installation may not be good idea . what do u suggest? thanks in advance. bsreekanth.

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• ssh_exchange_identification: Connection closed by remote host?

  - by user51684

  debug1: Connection established. debug1: identity file /home/DAMS/.ssh/id_rsa type 1 debug1: identity file /home/DAMS/.ssh/id_rsa-cert type -1 debug1: identity file /home/DAMS/.ssh/id_dsa type -1 debug1: identity file /home/DAMS/.ssh/id_dsa-cert type -1 ssh_exchange_identification: Connection closed by remote host hello this one is different . no missing or anything. im using cygwin. and it just stop when im doing git push production on my server. usually its ok, but i dont know why its stop connections i wonder whats wrong.

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• Is it possible to redirect/bounce TCP traffic to external destination, base on rules?

  - by xfx

  I'm not even sure if this is possible... Also, please forgive my ignorance on the subject. What I'm looking for is for "something" that would allow me to redirect all TCP traffic arriving to host A to host B, but based on some rules. Say host A (the intermediary) receives a request (say a simple HTTP request) from a host with domain X. In that case, it lets it pass through and it's handled by host A itself. Now, let's suppose that host A receives another HTTP request from a host with domain Y, but this time, due to some customizable rules, host A redirects all the traffic to host B, and host B is able to handle it as if came directly from domain Y. And, at this point, both host B and the host with domain Y are able to freely communicate (of course, thought host A). NOTE: All these hosts are on the Internet, not inside a LAN. Please, let me know if the explanation is not clear enough.

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• interesting uses for a headless host running Ubuntu.

  - by Manuel

  Hey! So, I have configured a pc with no monitor, keyboard or mouse running Ubuntu. I use it as a ssh server, file backup, web server, etc. Though, it seems as if I could use it for sooo much more. The problem is I can't think of many more uses. What interesting uses of a headless host have you heard of? Is there a cool trick you want to share? Thanks! Manuel

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• ssh-agent key timeout with screen or tmux on bastion host

  - by Jericon

  Normally I have ssh-agent running, I ssh to my bastion host then open a tmux session and connect to other boxes through that. Key forwarding works for any sessions that I open from that point forward. If I resume my tmux session after closing terminal, sleeping my laptop, whatever, my key forwarding on my bastion sessions still work, as does forwarding on any new sessions. Existing ones don't work, though. I have a little thing in my bashrc that keeps key forwarding working when I resume tmux, but I am having trouble figuring out how to get it to keep working for sessions open within tmux. For example, I have bastion01, dbhost01, dbhost02, webhost01, and webhost02. If I open a connection to bastion01, start tmux there, and then connect to dbhost01 and webhost01 forwarding works. If I close that connection, reconnect and attach my existing tmux session, then add connections to dbhost02 and webhost02, key forwarding works on the 02 boxes, but does not on the 01. Please help!

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• Exchange 2013 Internal Relay via Smart Host

  - by Matt Clements

  Thank you for your help in advance! I am currently setting up an Exchange 2013 server, to replace our old POP3/SMTP system, however we would like to roll this out gradually when convenient for our staff. Our plan is therefore: Setup Exchange 2013 to retrieve email via POP Connector - Done Setup Exchange 2013 to send ALL mail via a SmartHost - Issues I have set the domains in Mail Flow Accepted Domains to Internal Relay, enabled a Smart Host for * as the domain name, and disabled/deleted the accounts that are not setup yet; however Exchange just bounces the emails with no errors.

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• Apache2 alias in virtual host

  - by 0x7c00

  I have multiple virtual host in one server and plan to has some alias setup in one virtualhost. So I add the Alias /foo/ /path/to/foo/ in virtualhost directive,but it has no effect. request of host1/foo/ will return 404. But if I add this to /etc/apache2/mods-available/alias.conf, it works. But the problem is host2 will also share this alias. Is there a way to make the alias work only for host1? B.T.W, I use apache2ctl -l, there's no mod_alias.c listed, weird.

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