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• How can i simulate the production servers in my home for linux VMs [closed]

  - by user31

  I am thinking of making the small simulation of how the big companies run their system in my home environment to get the feeling. I have the server with 8GB ram , quad core processor. I am thinking of following setup if thats [possible because i have not worked with biger companies , so i want to know how can i do that I am thinking of creating 5 virtual machines VM1 will be database server and will have all databases like MySQL , postgreSQL , sqlite , mongodb and Oracle VM2 will be the web server and will have Apache and Tomcat installed VM3 will be the Filse server where i will have all the web sites file VM4 , i am thinking of as main box where i can install ptyon php java j2ee sites but not sure VM5 will have the server 22008 for c# .net applications my main idea is to be able to host the sites in php, python , java j2ee with spring Is my setup ok or i am missing few things. Please guide me with correct setup so that i can learn stuff

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• OpenVPN and brouting issue

  - by JavierMartinz

  I have a Guest XEN Machine in which I want to connect by OpenVPN to other network. But I have this problem: when I want to connect to that OpenVPN I get a lot of TLS handshake errors because I think that the packages did not come rightly. When, at the end, the guest machine achieve to connect (after several tries) I can't ping the other machines of the OpenVPN network. Except sometimes, where if I ping 20 times MAYBE i get ping-answer in 1-2 times. I think that this problem is related about how the HOST Xen machine 'filters' the packages to the bridge. I mean, I think that all the outgoing guest machines packages are good but the incoming traffic to the guests is not recognized well. How could I detect/solve the problem? Im using Debian Linux in both machines

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• VMWare Player 5.0 Upgrade - Bridged Networking No Longer Works

  - by Syndog

  I've been using VMWare Player 4 on my Windows 7 PC, running my VMs under a bridged networking configuration without any problem. I settled on bridged networking two reasons... I often use VMs to host web applications for test purposes. I never could get NAT to work for me anyway, but no love lost, considering reason #1. Now that I've upgraded to VMWare Player 5, the situation has completely reversed. In other words, bridged networking no longer works at all, and NAT does. Has anyone else come across this? Any ideas on getting bridged networking to work again? This happens with both Windows and Linux guest OSes. VMWare Tools has been fully updated. I've tried the usual vmnetcfg.exe utility fix, to no avail.

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• Forwarding requests throught Apache to openVPN

  - by Ency

  I am wondering if it is possible to redirect requests through Apache to eg. OpenVPN. As long as I need to bypass firewall, I need to use port 80/443 for openVPN, but there is Apache server which has both port for itself. Client ---> Firewall (allows 80/443 only) --->| ---> Apache (80/443) ---> OpenVPN (1194) | -------------------------------------------- My Server I was thinking about mod_proxy, but I am not sure if it is good idea, have you got any ideas? I hope possible solution will be applicable on virtual host as well.

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• Can't connect to service on ubuntu?

  - by user36914

  I have a service i just installed on a ubuntu workstation machine. Say its running under port 511. I can connect locally : telnet localhost 511 When i try to connect from a remote machine it fails telnet 192.168.0.1 511 Whats wierd is i tried to connect locally using the ip address and i get the following error: "Unable to connect to remote host: Connection Refused" I checked the status of the firewall: sudo ufw status and get back "status:inactive" So does anyone know why i can't connect remotely since the firewall is disabled and why can't i connect locally using its ip address. I don't know if this matters but its running under esxi.

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• SMTP 25 blocked externally

  - by Jeff

  not sure how to title this question... we run an exchange server with around 80 internal users, all outgoing mail is relayed off a smart host (ISP smtp server) so nothing is actually sent to the world via our server. i wanted to check the server, locally i can telnet to port 25 with no issues and receive the esmtp service ready reply. whenever i do it from an external address (off our local network) i receive unable to connect error 10060. can this cause problems with SPF records, and reverse DNS ? should my exchange server be able to accept smtp requests, requiring authentication before i am able to send from external addresses? if so how... also the exchange server is behind a NAT (asa) device, more than likely thinking that the nat is not configured to route the smtp 25 request to the exchange server.. thanks

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• Enable group policy for everything but the SBS?

  - by Jerry Dodge

  I have created a new group policy to disable IPv6 on all machines. There is only the one default OU, no special configuration. However, this policy shall not apply to the SBS its self (nor the other DC at another location on a different subnet) because those machines do depend on IPv6. All the rest do not. I did see a recommendation to create a new OU and put that machine under it, but many other comments say that is extremely messy and not recommended - makes it high maintenance when it comes to changing other group policies. How can I apply this single group policy to every machine except for the domain controllers? PS - Yes, I understand IPv6 will soon be the new standard, but until then, we have no intention to implement it, and it in fact is causing us many issues when enabled.

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• Mysql skip-name-resolve

  - by user72459

  I had recently purchased a new server, and transferred all my accounts via WHM Transfer. The problem is that when WHM takes a daily backup, it outputs are message such as DBD::mysql::st execute failed: There is no such grant defined for user 'abc' on host 'myhostname' The problem is solved when I remove skip-name-resolve from my my.cnf file. Tough I dont find any differences in the speed (when I dont add it), it is often mentioned in forums that adding skip-name-resolve optimizes Mysql Performance. Does adding skip-name-resolve really help, if one has a Dedicated server?

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• IE session (-nomerge) manager

  - by skrco

  I'm looking for an application that can manage (save/open) multiple Internet Explorer instances (to be precise nomerge sessions), host them in single window and arrange these instances e.g. in tabs, so in result you have double tab bar. In functionality it's similar to Remote Desktop Manager, where you can create Web session, but in embedded mode you cannot set the nomerge option. I've been searching the web, but with no results. So I put this question whether anyone know of such application or workaround. Or I have to write my own app.

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• Setting a mapped drive in Virtual hosts causes apache to not start

  - by darksoulsong

  I´m trying to set a virtual host on my windows 7 machine. The folder I want to point to is located on a centOS machine and the folder path is Z:\Websites\Online\MyClient\Site. But something strange happens when I set the document root like this: DocumentRoot "Z:\Websites\Online\MyClient\Site" Apache do not restarts after that. When I take a look at the log, there is an error pointing to that line, where I added the path to the folder: Syntax error on line 48 of C:/Program Files/Zend/Apache2/conf/extra/httpd-vhosts.conf: DocumentRoot must be a directory. There must be a way to make it work like this, by setting an Apache Installation on a machine and pointing it to a folder located on another computer, right? My hosts file is set like this: 172.17.10.1\Data\Websites\Online\MyClient\Site MyClient.local ANY HELP would be VERY appreciated.

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• Need to call a script at logon based on hostname. Win 2k3 Domain and XP/7 workstations.

  - by Malocchio

  I have a user logon script. I want to install printers based on hostname. Inside this folder \domain.local\SYSVOL\domain.local\Policies{DF3F608C-8D78-934F-B79F-1965F3C4409B}\User\Scripts\Logon I have cmd files for each host/workstation and the logon.cmd. Terminal Servers are honoring the environment variable %clientname% but the workstations are not. Relevant area of logon.cmd rem Delete all existing printer connections c:\windows\system32\con2prt.exe /f rem Call workstation specific script for connecting to printers %clientname%.cmd Excerpt from clientname.cmdL: rundll32 printui,PrintUIEntry /in /n\\fileserv\PhaserPS rundll32 printui,PrintUIEntry /in /n\\fileserv\CanonIR rundll32 printui,PrintUIEntry /y /n\\fileserv\CanonIR

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• Slow slef hosted wordpress website

  - by Integrati Marketing

  Hi All, we have a great site which has been humming along nicely for about 5 months and then in May it went from a page load speed time of 3-5 secs to now an agonising 15+ secs!!! The host has been really helpful and has even shifted the site to a new server which is faster! I guess seeing as though we do not have the insight or your expertise we would ask the Serverfault community and see what this crowd of experts could recommend? Appreciate any insight, thank you. site is here: integrati.com.au Cheers. :)

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• problem with accessing a php page

  - by EquinoX

  So I have a info.php page which is located on the folder /var/www/nginx-default, however when I go to my ip address/info.php, it always redirects me to this site: http://www.iana.org/domains/example/ is this because I have a virtual host that I called example? Here is my config for the example website: server { listen 80; server_name www.example.com; rewrite ^/(.*) http://example.com/$1 permanent; } server { listen 80; server_name example.com; access_log /var/www/example.com/logs/access.log; error_log /var/www/example.com/logs/error.log; location / { root /var/www/example.com/public/; index index.html; } } The way I access this site is by changing my /var/hosts in my macbook so that example.com is mapped to my server IP address... however now when I do xxx.xxx.xxx.xxx/info.php.. it redirects me to that site I posted above

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• In-House DropBox

  - by beardedlinuxgeek

  Dropbox is perfect, but as a company, no one can host anything worthwhile on servers that we don't control. So I've been tasked with coming up with a Dropbox alternative, something in house. GlusterFS is nice, but no offline access. SparkleShare uses Git which isn't great for large files. It also doesn't have windows ports. Any other options? If I were to roll out my own from scratch, what do you think the based way to go about doing this would be?

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• How do I split a large MySql backup file into multiple files?

  - by Brian T Hannan

  I have a 250 MB backup SQL file but the limit on the new hosting is only 100 MB ... Is there a program that let's you split an SQL file into multiple SQL files? It seems like people are answering the wrong question ... so I will clarify more: I ONLY have the 250 MB file and only have the new hosting using phpMyAdmin which currently has no data in the database. I need to take the 250 MB file and upload it to the new host but there is a 100 MB SQL backup file upload size limit. I simply need to take one file that is too large and split it out into multiple files each containing only full valid SQL statements (no statements can be split between two files).

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• I lost /dev/md2 on my server

  - by sten

  Hi, My 2 hard drives fried at the same moment apparently. My host company rebooted my server in rescue mode and I am trying to recover my data. They told me to mount /dev/sda2 to recover the data I need but, looking at a similar server that I have in pool, the data I'm looking for should be instead in /dev/md2. I can find /dev/md0 but not /dev/md2 (nor /dev/md1). I've looked on several places on the web and I could only find messages explaining how to create new partition. I just need to recover some data, not all of it and I'll be glad if anyone could help me to mount the /dev/md2 folder (or any other trick that would allow me to recover the data that was stored there). Thanks in advance, Sten

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• Why can't my FreeBSD 6.1 (vmware player client under Win7) do DNS in Bridged mode.

  - by Walter Stickle

  I have a 64-bit FreeBSD 6.1 client, running under Windows 7 (64-bit) via VMWare player 3.0, with networking set to bridge mode. DHCP goes fine on boot... I get correct adress/gateway/nameserver info... I have good connectivity to the world in that I can ping any host I can name by IP addr, (including both of the nameservers in resolv.conf,) ...but I can't resolve any names. Inside the Windows box, the network interface has VMWare Bridge Protocol enabled, and the windows side of things has full connectivity. dig replies with: ;; connection timed out; no servers could be reached ...even if I use "dig @server_ip_addr" to point it at a pingable, working nameserver If I set VM networking to NAT mode, I can get outbound connectivity (with happy DNS) but, of course, can't do INBOUND connectivity, which I need. Thoughts?

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• Centos 6.2, Apache 2 and Listen port for socket connection

  - by salvosav

  I'm trying to make a socket connection between a client and my server through a php script. To do this, I opened a port on iptables, and configure a virtual host with apache to redirect all traffic from my door to the folder that contains the file index.php, which is my script. Doing some tests the door is open, but using command netstat -ltn , I see ':::35100'. Looking on the net I understand if in this way is only listen inward and not outward. But I don't understand how can I turn this ':::35100 '-' in this '0.0.0.0:35100 '. Or, better yet, how to add this rule. Any ideas? thanks

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• parallel vms in VMWare Server - how to configure network so they can ping each other?

  - by IronGoofy

  I'm using VMWare Server (currently on Version 1.0.7) and have two VMs that I would like to run at the same time. However, I'm having problems in setting them up so they can ping each other. I've configured them to use 'Bridged' networking. They both obtain an IP address from the DHCP server on my network, but after that they can't ping each other. It seems that only the first one has a functioning network connection (I can ping it from the host machine and Internet connection works), but the other one does not. If it helps, both VMs are running XP SP 3. Any ideas? Thanks!

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• VMware vSwitches and spanning tree

  - by dunxd

  I have two redundant core switches I want to connect to a new vSwitch I am setting up on a VMware ESX host. The switch will have two physical NICs each of which will connect to one of the core switches. The core switches are connected. If this was a physical switch, I would worry about connecting it to both core switches, because this would create a network loop. Do I need to worry about this for a VMware virtual switch? VMware's documentation says it is not possible to connect two vSwitches in a loop, therefore STP is not required. However, I am worried about connecting two physical switches together via a vSwitch.

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• php apache unknow 500 error

  - by JohnathanKong

  I currently have an error with my apache/php installation on a centos system. I checked the log files in /var/log/httpd and in my logs directory as specified in my virtual host file, but they are not getting populated with errors. I've also set php to log errors, through the php.ini, to the /var/log/httpd/ but the error file is not getting created. When I setup the display_errors = On in the php.ini all I get is a blank screen. this is a git controlled project that is running off of an ubuntu server that works perfectly, so there is something missing from this server. My question is, is there any way I can get more info on the error that I am getting? I just need something that I can trace back. I am using a codeigniter framework, so for me to trace through the code will take days. Thanks!

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• TCP and fair bandwidth sharing

  - by lxgr

  The congestion control algorithm(s) of TCP seem to distribute the available bandwidth fairly between individual TCP flows. Is there some way to enable (or more precisely, enforce) fair bandwidth sharing on a per-host instead of a per-flow basis on a router? There should not be an (easy) way for a user to gain a disproportional bandwidth share by using multiple concurrent TCP flows (the way some download managers and most P2P clients do). I'm currently running a DD-WRT router to share a residential DSL line, and currently it's possible to (inadvertently or maliciously) hog most of the bandwidth by using multiple concurrent connections, which affecty VoIP conversations badly. I've played with the QoS settings a bit, but I'm not sure how to enable fair bandwidth sharing on a per-IP basis (per-service is not an option, as most of the flows are HTTP).

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• Personally identifiable information (PII) on shared web hosting

  - by S. Cobbs

  Hey folks, I am providing web hosting services (shared and dedicated) and have had one of my shared hosting clients mention needing an SSL cert for their site where they are collecting insurance quotes in a form, including names and social security numbers. My privacy sense is tingling, and I'm pretty sure it's not legal (in the US) to do this on a shared system, but can't find anything to support my thoughts outside of PCI-DSS, but the customer isn't processing payments through the site so I'm not sure if that applies. I'm reading lots of policy documents where people advise to minimize and manage the PII footprint internally, but as the host I don't want to put all of my customer's clients at possible risk. I'm not looking here for legal advice necessarily, but perhaps someone in a similar position to mine can provide some rule of thumb or point me in the right direction.

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• Make a server ( other than the router ) to be the default gateway for a subnet

  - by powerguy123

  I am trying to make a server ( lets call it server_A) which is different from the router to be the gateway for a subnet. Why do I want this ? I want to host a loadbalancer on server_A using LVS-NAT, and I dont want to implement a V-Lan or IP-IP tunneling. I have modified the routing tables of the remaining servers on the subnet to use server_A as the gateway. I have set server_A to not send ICMP reroute packets. But most traffic from servers in that subnet to outside clients are still being sent through the original gateway, bypassing server_A. Is there any other configuration I need to set in order to achieve my goal ?

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• RUNIT - created first service directory, "sv start testrun" does not work

  - by Veseliq

  I'm pretty new to runit. I installed it on a Ubuntu host. What I did: 1) created a dir testrun in /etc/sv 2) created a script run in /etc/sv/testrun/run, the script content: #! /bin/bash exec /root/FP/annotate-output python /root/FP/test.py | logger -t svtest 3) If I call directly /etc/sv/testrun/run it executes successfully 4) I run sv start testrun (or sv run testrun, sv restart testrun), all of them end up with the same error msg: fail: sv: unable to change to service directory: file does not exist Any ideas what am I doing wrong? I'm new to runit and base all my actions on the information found here: http://smarden.org/runit/

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