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• getting input/output error from NFS client on RHEL5

  - by Andrew Watson

  i have two RHEL5 boxes on a private network together (192.168.2.0/24) and I am trying to export a file system from one to the other but I keep getting the following error: mount.nfs: Input/output error on the client side I see this output: mount: trying 192.168.2.101 prog 100003 vers 3 prot tcp port 2049 mount: trying 192.168.2.101 prog 100005 vers 3 prot tcp port 960 and on the server side I see this: Sep 20 14:14:32 omicron mountd[18739]: authenticated mount request from 192.168.2.87:635 for /srv/nfs/web (/srv/nfs/web) but that's all. I opened up iptables so that the whole 192.168.2.0/24 network is allowed to communicate freely but the public side is locked down to 22,80 etc.... any ideas?

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• VPN Network intermittantly fails to provide internet: What could be possible causes

  - by Jake M

  We have a small office with our own VPN setup. We occasionally experience failures in our internet connection where we cannot access the internet. Most of the time the internet connection will resume by itself(without me doing anything) after a period of time(10 mins). Would you be able to suggest possible causes of the connection failure so I can then go and run some tests? Our network architecture is like so: A 'Billion' brand router that is connected to the internet via phone cable and then connected to our Cisco Switch A Cisco Switch/Bus which is connected to all our office nodes, our external harddrive and also to our router as stated above. All connections are via ethernet cable A series of work computers(nodes) connected via ethernet cable to the Cisco switch. Our ISP is TPG Australia We have a Virtual Private Network All the ethernet cables are about 3 years old Do you think that the causes of our intermittant connection problems could be due to the following: Data collisions in the ethernet cables Old/Faulty ethernet cables Our ISP has bad service Can you think of any other causes of the problem?

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• Using AddEncoding x-gzip .gz without actual files

  - by STATUS_ACCESS_DENIED

  With Apache (2.2 and later) how can I achieve the following. I want to transparently compress using GZip encoding (not plain Deflate) the output when a certain file is queried with its name plus the extension .gz, where the .gz version doesn't physically exist on disk. So let's say I have a file named /path/foo.bar and no file foo.bar.gz in the folder to which the URI /path maps, how can I get Apache to serve the contents of /path/foo.bar but with AddEncoding x-gzip ... applied to the (non-existing) file? The rewrite part appears to be easy, but the problem is how to apply the encoding to a non-existent item. The other way around also seems to be simple as long as the client supports the encoding. Is the only solution really a script that does this on the fly? I'm aware of mod_deflate and mod_gzip and it is not what I'm looking for - at least not alone. In particular I need an actual GZIP file and not just a deflated stream. Now I was thinking of using mod_ext_filter, but couldn't bridge the gap between rewriting the name of the (non-existent) file.gz to file on one side and the LocationMatch on the other. Here's what I have. RewriteRule ^(.*?\.ext)\.gz$ $1 [L] ExtFilterDefine gzip mode=output cmd="/bin/gzip" <LocationMatch "/my-files/special-path/.*?\.ext\.gz"> AddType application/octet-stream .ext.gz SetOutputFilter gzip Header set Content-Encoding gzip </LocationMatch> Note that the header for Content-Encoding isn't really needed by the clients in this case. They expect to see actual GZIP files, but I want to do this on-the-fly without caching (this is a test scenario).

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• Reverse proxy setup for distributed storage

  - by vise

  I have 4 file servers that I want to access under a single mount point from another server. This server has a web application that should serve content from the mounted point. I think I can achieve this with glusterfs. Considering that the file servers have fairly powerful hardware, I want to install a webserver on each of them and serve those files via a reverse proxy. Any thoughts on how I may be able to do so?

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• PDFs and Networked Printers

  - by Bart Silverstrim

  Weird issue. We have users printing to networked windows-shared printers (print server Win2003 sp2). Some users have been reporting recently that they can't print PDF documents to particular printers (two example printers are HP 2430 PCL 6 driver and 4250 PCL 6 driver). At first, we found that on many of these systems the "Everyone" object was added to the permissions for the root of the C: volume but had no permissions checked. We added modify privileges to it (these are Deep-Freeze systems, so modifications to these systems that we don't add as administrators won't matter) and they seemed to be able to print. Perhaps Acrobat Reader was writing a temp file for printing where users didn't have permission, we surmised, and made the change and moved on. Yesterday the user called in saying it's not working still. Looked at it; bring up a PDF, click Print and the reader app says that you have to install a printer. Look at the printers folder (Windows XP workstation), and it has printers installed. Print a test page, return to AcroReader, and it will print fine to that printer. The whole time web pages, MS Office documents, etc. print without issue to the same printers. Has anyone seen this issue with Acro Reader 9 and certain network printer drivers or shares involving HP printers? I'd post this to SuperUser but it seems to be associated with a networked printer issue, seems to affect subsets of users but may be more widespread and our users aren't reporting it to us assuming we just know about it, and I've not found rhyme or reason as to why it's affecting just PDF printing and particular printers. The print spoolers are all running on the workstations and print server without errors being logged so far, but I'm going through the logs now to see if I can find anything out of place.

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• rdiff-backup command to restore

  - by Hulk

  Let say i have a source directory which contains The contents /foo/a /foo/b(These are the files in a directory on a remote system) using rdiff command i make a backup as rdiff-backup [email protected]::/foo backups And a,b are now present in my backups directory.And then i delete file a from the remote system and again i do a sync so my local directory has the file b only. My question is that how do i restore file a if the deletion and sync is done on the same day Thanks..

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• Authentication problem: can't bypass the login prompt when browsing to the SQL Reporing Services web

  - by laurens

  Hi all, I'm having a hard time configuring Reporting services on one of our servers. I'm not uninitiated in the domain of IIS7 but I cannot get rid of the login prompt when I'm surfing to the Reporting services website. What I did: I made a windows and SQL user with the same name: Then I choose Anonymous authentication in II7 and filled in the credentials of the specific R.S. user http://img32.imageshack.us/i/iis7auth.jpg/ I choose 'Local Service' as the service account in the R.S. configuration mgr http://img88.imageshack.us/i/rsconfigmgr.jpg/ The first problem is that there's always a pop-up when surfing to the website The second is that when I'm able to log in I get the message that the user doesn't have the appropriate permissions. The pop-up: http://img693.imageshack.us/i/loginpopup.jpg/ The server is a 2008 Web Server with SQL 2008 R2 Express. What I'm I doing wrong? Thanks in advance!

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• NTPD issue - syncs then slowly loses ground

  - by ethrbunny

  RHEL 5 workstation. Has been running smoothly for years. I did a 'pup' recently and followed with a nice, cleansing reboot. Afterwards the system had some startup issues: namely MySQL refused to start. It just went "...." for 5-10 minutes before I did another boot and skipped that step (using 'interactive'). This was the only service that didn't wan't to start normally. So now that the system is booted I've found that it doesn't want to stay in sync with the NTP master and after 48 hours is refusing any SSH other than root. NTPD: this service starts normally and gets a lock on 4 servers. Almost immediately it starts to lose ground and now (after 3 days) is almost 40 hours behind. If I stop/start the service it gets the lock, resets the system clock and starts losing ground again. The 'hwclock' is set properly and maintains its time. Login: when I (re)start the ntp server I am able to login normally. I assume this problem is due to losing sync with LDAP. This appears to be verified by LDAP errors in /var/log/messages. Suggestions on where to look? ADDENDA: Tried deleting the 'drift' file. After a bit it gets recreated with 0.000. from /var/log/messages: Jan 17 06:54:01 aeolus ntpdate[5084]: step time server 129.95.96.10 offset 30.139216 sec Jan 17 06:54:01 aeolus ntpd[5086]: ntpd [email protected] Tue Oct 25 12:54:17 UTC 2011 (1) Jan 17 06:54:01 aeolus ntpd[5087]: precision = 1.000 usec Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface wildcard, 0.0.0.0#123 Disabled Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface wildcard, ::#123 Disabled Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface lo, ::1#123 Enabled Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface eth0, fe80::213:72ff:fe20:4080#123 Enabled Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface lo, 127.0.0.1#123 Enabled Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface eth0, 10.127.24.81#123 Enabled Jan 17 06:54:01 aeolus ntpd[5087]: kernel time sync status 0040 Jan 17 06:54:02 aeolus ntpd[5087]: frequency initialized 0.000 PPM from /var/lib/ntp/drift Jan 17 06:54:02 aeolus ntpd[5087]: system event 'event_restart' (0x01) status 'sync_alarm, sync_unspec, 1 event, event_unspec' (0xc010) You can see the 30 second offset. This was after about one minute of operation.

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• Can not change to a static IP in Fedora 19

  - by user196272

  Im having a bit of a weird situation. Ive installed Fedora Linux 19 onto a virtual machine with no GUI. initially eth0 does not show up when I perform ifconfig. when I run dmesg | grep eth I see the adapter but it says it changed names to p2p1. Once I perform the ifconfig p2p1 up command it shows up. Now when I try to edit the /etc/sysconfig/network-scripts/ifcfg-p2p1, it does not exist. the only scripts that are there lo and enp0s3. If I try to create the ifcfg-p2p1 file with the correct settings, I can not restart the network service. I tried editing the enp0s3 file, but that did not work. Im fairly new to linux and not sure what else to put in here, so if you need any more information just let me know and Ill put it in here.

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• php file downloads instead of being processed with ajax on apache

  - by eagleon

  I have a small website where some content is displayed within a HTML tag using AJAX. The content is simply taken from another page on the same web site. However, sometimes instead of loading the parsed PHP file, the browser displays a download box instead. I downloaded the file and this is what it looks like a text file mixed with binary or gzipped data. I can't paste the binary stuff here, but here are some of the headers: Jul 2012 18:52:16 GMT Server: Apache/2 X-Powered-By: PHP/5.3.10 Content-Encoding: gzip Vary: Accept-Encoding,User-Agent Keep-Alive: timeout=1, max=95 Connection: Keep-Alive Transfer-Encoding: chunked Content-Type: text/html HTTP/1.1 304 Not Modified Date: Sun, 01 Jul 2012 18:52:16 GMT Server: Apache/2 Connection: Keep-Alive Keep-Alive: timeout=1, max=93 ETag: "2fc857-409-4c39691c59b40" HTTP/1.1 304 Not Modified Date: Sun, 01 Jul 2012 18:52:16 GMT Server: Apache/2 Connection: Keep-Alive Keep-Alive: timeout=1, max=92 ETag: "2fc854-3e5-4c39691b65900" HTTP/1.1 304 Not Modified Date: Sun, 01 Jul 2012 18:52:16 GMT Server: Apache/2 Connection: Keep-Alive Keep-Alive: timeout=1, max=91 ETag: "2fc847-3e3-4c3969197d480" and large blocks of stuff like this: µàl]&BaËÜk#ìÏ

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• What is the standard system architecture for MongoDB

  - by learner

  I know this question is too vague, so I would like to add some key numbers to give insights about what the scenario is Each Document size - 360KB Total Documents - 1.5 million Document created/day - 2k read intensive - YES Availability requirement - HIGH With these requirements in mind, here is what I believe should be the architecture, but not too sure, please share your experiences and point me to right directions 2 Linux Box(Ubuntu 11 would do)(on a different rack setup for availability) 64-bit Mongo Database 1-master(for read/wr1te) and 1-slave(read-only with replication ON) Sharding not needed at this point in time Thank you in advance

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• I am unable to find login page for phpmyadmin

  - by Awan

  I was using phpmyadmin(in Wamp) without a password for root. I thought to set a password for root and goto Privileges page and set a password for root. Now whenever I go to localhost/phpmyadmin page it gives me the following error. MySQL said: Documentation #1045 - Access denied for user 'root'@'localhost' (using password: NO) phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server. I don't know that what is the problem. It is not showing me a login type page to enter a username and password. Any idea that what is the problem ? Thanks

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• hiera_include equivalent for resource types

  - by quickshiftin

  I'm using the yumrepo built-in type. I can get a basic integration to hiera working yumrepo { hiera('yumrepo::name') : metadata_expire => hiera('yumrepo::metadata_expire'), descr => hiera('yumrepo::descr'), gpgcheck => hiera('yumrepo::gpgcheck'), http_caching => hiera('yumrepo::http_caching'), baseurl => hiera('yumrepo::baseurl'), enabled => hiera('yumrepo::enabled'), } If I try to remove that definition and instead go for hiera_include('classes'), here's what I've got in the corresponding yaml backend classes: - "yumrepo" yumrepo::metadata_expire: 0 yumrepo::descr: "custom repository" yumrepo::gpgcheck: 0 yumrepo::http_caching: none yumrepo::baseurl: "http://myserver/custom-repo/$basearch" yumrepo::enabled: 1 I get this error on an agent Error 400 on SERVER: Could not find class yumrepo I guess you can't get away from some sort of minimal node declaration w/ hiera and resource types? Maybe hiera_hash is the way to go? I gave this a shot, but it produces a syntax error yumrepo { 'hnav-development': hiera_hash('yumrepo') }

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• nginx rewrite or internal redirection cycle

  - by gyre

  Im banging my head against a table trying to figure out what is causing redirection cycle in my nginx configuration when trying to access URL which does not exist Configuration goes as follows: server { listen 127.0.0.1:8080; server_name .somedomain.com; root /var/www/somedomain.com; access_log /var/log/nginx/somedomain.com-access.nginx.log; error_log /var/log/nginx/somedomain.com-error.nginx.log debug; location ~* \.php.$ { # Proxy all requests with an URI ending with .php* # (includes PHP, PHP3, PHP4, PHP5...) include /etc/nginx/fastcgi.conf; } # all other files location / { root /var/www/somedomain.com; try_files $uri $uri/ ; } error_page 404 /errors/404.html; location /errors/ { alias /var/www/errors/; } #this loads custom logging configuration which disables favicon error logging include /etc/nginx/drop.conf; } this domain is a simple STATIC HTML site just for some testing purposes. I'd expect that the error_page directive would kick in in response to PHP-FPM not being able to find given files as I have fastcgi_intercept_errors on; in http block and nave error_page set up, but I'm guessing the request fails even before that somewhere on internal redirects. Any help would be much appreciated.

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• Ubuntu issues when moving hard disk to new system

  - by Tim

  I'm working on a legacy project with a small single board computer running Ubuntu 10.04 on a compact flash card. I need to be able to save away a working image (via dd) and copy said image to other compact flash cards for use in other single board computers (with identical hardware) I'm able to copy the image to other flash cards and bootup on other systems no problem. But I'm seeing strange behavior. For instance, I can't use sudo on the new system (“sudo: must be setuid root”). I've gone down the path of trying to fix this, but have run into a slew of other issues. General question is: what do I need to be aware of when moving a hard disk containing Ubuntu (in my case a compact flash card) to another computer? I was hoping it would be seamless to Ubuntu since it's moving to a system with identical hardware. Is there something that needs to be done to make it "portable"?

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• Survey of project-administration experience [on hold]

  - by Salvador Beltrán

  My name is Salvador, I'm a Computer System Eng. Student and I'm searching for people to contribute with my research and I need real opinions - Experience (is an investigation for problems in the Project Management Area), just to be clear it can be any kind of project. If you help me with these 3 questions I would appreciate you so much! :) 1 - Any kind of problem that ocurred during the process of the project administration(Just the description). 2 - What was the impact? 3 - And what was the solution to avoid this problem in some future. 4 - What do you do(Software Engineering,Networking,etc). Thank you very much!

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• How can access files on shared drive from Windows 2008 server configured with SFTP

  - by communicator

  I have installed OpenSSH on my windows 2008 server by following the user guide here . Now I have some files on windows network share with UNC path as \\corp\test\testdata I want map this file system on network share to my windows 2008 server which is configred with SFTP so that I can access these files from my Java Program by doing SFTP to windows 2008 server.Is there anyway I can map the network share to C or other drive in server so that all the files on the share will be available as local files on the server?

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• DIR $file "File Not Found" vs DIR $filedir shows it....not permissions, not USB

  - by Kev

  I was having this problem before on a USB drive, but now it's happening on my main RAID5-backed hard disk: 2013-10-17 9:37 C:\>dir "C:\Shares\Shared\Reference\Safety Management System\Vid eo CD\AutoPlay\Docs\Manuel*" Volume in drive C has no label. Volume Serial Number is 3C18-E114 Directory of C:\Shares\Shared\Reference\Safety Management System\Video CD\AutoP lay\Docs 2003-09-09 11:29 PM 1,056,768 Manuel d'intervention d'urgence MFC.doc 2004-06-20 10:36 PM 139,849 Manuel d'intervention d'urgence MFC.pdf 2 File(s) 1,196,617 bytes 0 Dir(s) 196,068,691,968 bytes free 2013-10-17 9:38 C:\>dir "C:\Shares\Shared\Reference\Safety Management System\Vid eo CD\AutoPlay\Docs\Manuel d'intervention d'urgence MFC.doc" Volume in drive C has no label. Volume Serial Number is 3C18-E114 Directory of C:\Shares\Shared\Reference\Safety Management System\Video CD\AutoP lay\Docs File Not Found 2013-10-17 9:38 C:\> This is from a Command Prompt window where I went to Properties and told it I wanted to modify who it ran as. I opened it, had it run as me with the "restricted access" unchecked, then ran the above. The file in question has the following ACLs: Administrators, SYSTEM, and OurCompanyUsers. All three have full control of everything. Nobody has any Deny bits set. I am a member of Administrators. So I don't believe it's a permissions issue. It's not a USB drive, so this time there is no question of USB hardware. Windows Server 2003 Standard Edition SP2. What does this mean? Is this more likely a hardware or software problem?

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• Performance issues concurrently running MySQL and SQL Sever

  - by pacifika

  We're considering installing MySQL on the same database server that has been running SQL Server. From my research there are no technical issues running both concurrently, but I am worried that the performance will be affected. Is by default SQL Server set up to use all available memory for example? What should I look out for? Thanks

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• PHP5 extensions

  - by Jack

  I have looked through many tutorials on installing a web server, and some of them have enormous amounts of various PHP extensions. I have a few questions about that: Why would one want to install all those extensions? How to know which extensions you have to install for your site to work properly? Why some tutorials "just" tell you to install them all, when some tell you to install 4 or 5 of them? Thanks! P.S. I'm quite new to Linux, and I'm installing a web server using nginx. Or looking for information about things that look odd to me at the moment. EDIT: Since the question has been answered, I would like to know which ones of these are most likely unnecessary for a Wordpress or SMF installation? php5-fpm php5-mysql php5-xsl php5-curl php5-gd php5-intl php-pear php5-imagick php5-imap php5-mcrypt php5-memcache php5-xcache php5-ming php5-ps php5-pspell php5-recode php5-snmp php5-sqlite php5-tidy php5-xmlrpc Perhaps there are some extensions that would optimize my website?

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• Speeding up Outlook Express on Windows XP over satellite

  - by John

  My brother is in the field with Doctors Without Borders. I'm posting this question on his behalf. We use outlook express (on a pc running windows XP) and a 9600 baud dial up satellite phone modem to get our email direct from the server in Paris. As this is a very expensive way to communicate (our satellite bill is $50K a year, no joke), it seems like trying to streamline is a good idea. Here's the question- when we connect, the sequence goes: Send outbox mails. This goes pretty quickly, probably 10-15 seconds for each email, up to maybe a couple minutes for an email of 150k or so). The status bar moves pretty quickly, according to the emails sent. The system then says "Checking for new messages on (our account name), and "Receiving list of messages from server". This takes a long time. Like 10-15 minutes. The status bar crawls along. Then it receives the messages. "Receiving messages from server". Again, each message takes 10-15 seconds, and this part moves along reasonably fast. I'm curious as to what is going on in the second part. It takes forever, and doesn't seem to be part of the sending or receiving messages themselves. Is there a way to speed up the process by changing a preference with communicating with the server or something? Does anyone have any advice for him speeding up what Outlooks Express is doing? Obviously his software is ancient and adding more software is not realistic based on the connection speed. Thanks!

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• nameservers one domain one VPS and one VMCloud

  - by Dave

  I 'had' just a single VPS with nameservers ns1 & ns2.mydomain.com. I've now taken a VMCloud package as I need space etc. Ultimately I will carefully transfer all accounts from my VPS to Cloud but in the short term I'm running both. In the new WHM on Cloud I have set hostname bla.domian nameservers as ns3 & ns4.mydomain.com with the two new ip addresses. Question is do I need to do anything else - eg where mydomain.com is registered? I want ns1 & 2 point to VPS and ns3 & 4 to point to Cloud.

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• SSH Connection refused

  - by ThinkBohemian

  I was logged into my server earlier today, and now when i go to SSH i get the error "SSH Connection Refused" i'm running Ubuntu Hardy. The server is still working, and serving web-pages i just cannot get in. Last time i was on the server, i didn't change any of the iptables. Is there anyway to troubleshoot this issue without being able to get into the server?

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• How do I run AWS code on an EC2 instance?

  - by Marianna

  I just started with Amazon web services, and I have an EC2 instance. I downloaded the JAVA SDK and the Eclipse toolbox. I am able to run a sample program locally on my PC and connect to the Amazon databases, etc. My question is, what do I need to do to get this working on my EC2 instance? This may not even be specific to AWS. On Eclipse, I can just "Run as Application" and run any code. On the server side, what do I need to do? Should I ftp over my .java files? Should I export it to a jar and upload that? Do I need to install anything special to actually run it?

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• route port 3000 to apache2 alias

  - by user223470

  I have a meteor application running on port 3000. I can successfully connect to the program with www.myurl.com:3000, but would rather connect to it via www.myurl.com/myappname. I started with the instructions on this web site: http://www.andrehonsberg.com/article/deploy-meteorjs-vhosts-ubuntu1204-mongodb-apache-proxy and I have the following Apache configuration file: <VirtualHost *:80> ServerName myurl.com ProxyRequests off <Proxy *> Order deny,allow Allow from all </Proxy> <Location /> ProxyPass http://localhost:3000/ ProxyPassReverse http://localhost:3000/ </Location> </VirtualHost> I do not know how to continue from here to get the program on www.mysite.com/myapp. In other situations, I would use an Alias within the Apache configuration file, but that doesn't seem like the right direction to go in this case. How do I configure Apache to send port 3000 to www.myurl.com/myapp?

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