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• "merging" multiple internet connections

  - by Spencer R

  I've seen this question asked several times here on SF, but I'm looking for some updated information; specifically concerning Server 2012. I'm in the process of buying a home so I'm trying to get some plans together on how I want to structure my network. Internet speeds aren't the greatest and connections can be unreliable where the house is so I was thinking of having two DSL lines installed. My question is, how could I leverage those two connections to create the best network I can, in terms of speed and reliability. My parents will be moving in with me - they consume a lot of bandwidth as it is, but then add my internet traffic to it, and I'm headed for a lot of frustration. I thought I remember reading somewhere that Server 2012 has some new functionality to utilize multiple connections on multiple NICs in a way that wasn't possible in earlier versions of Server. Not sure if Windows will work but, I'm an application developer and spend the majority of my time in Windows environments. However, I've only recently returned to the Windows world, so I'd like my main server at home to run Win Server 2012 so that I can become more familiar with it.

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• Sharepoint web part fails intermittently

  - by pringly

  I have a MOSS 2007 environment, 2 web servers and a DB server, load balanced between the two web servers. I deployed a web part recently, which worked fine for a while, but failed on web server 2 after a day. When it fails, it gets the error message: 'A Web Part or Web Form Control on this Page cannot be displayed or imported. The type could not be found or it is not registered as safe’ Once it has failed, it will stay that way until an IIS reset is done. The other web server never fails, I tried to force the second web server to fail to recreate the issue and have been unable to do it. I tried placing it under heavy http traffic and it handled it fine. Put it back in the pool and it failed again after about 7 hours. So, if i remove the .dll for the webpart from the affected web server, the webpart doesnt stop working. Is this normal behavior? I checked the bin directory for the site and the global assembly and it there is no other copy of the .dll anywhere else on the server. Also, when checking the web part gallery, if the web part has failed it will appear in the gallery, but by trying to add a new webpart, the .dll wont be listed. I have no idea how to continue troubleshooting from here or even fix it, any ideas?

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• Linux: Three default gateways?

  - by Daniel

  My server has three default gateways, how can that be? Shouldn't there be one default gw? I have three NICs, each attached to a separate subnet: server1:~# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.5.0.0 * 255.255.255.224 U 0 0 0 eth3 localnet * 255.255.255.224 U 0 0 0 eth0 192.168.8.0 * 255.255.255.192 U 0 0 0 eth1 default 10.5.0.1 0.0.0.0 UG 0 0 0 eth3 default 192.168.8.1 0.0.0.0 UG 0 0 0 eth1 default 10.1.0.1 0.0.0.0 UG 0 0 0 eth0 Sometimes, I can't ping a host on the Internet, sometimes I can. What I want is traffic to the Internet (0.0.0.0) routed through a specific NIC. Can I just add a route for 0.0.0.0 and default gw to one of the eth0-3 interfaces? Will it break my connection? I'm using Debian, here is my /etc/network/interfaces: # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug eth0 iface eth0 inet static address 10.1.0.4 netmask 255.255.255.224 network 10.1.0.0 broadcast 10.1.0.31 gateway 10.1.0.1 allow-hotplug eth1 iface eth1 inet static address 192.168.8.4 netmask 255.255.255.192 network 192.168.8.0 broadcast 192.168.8.63 gateway 192.168.8.1 allow-hotplug eth3 iface eth3 inet static address 10.5.0.4 netmask 255.255.255.224 network 10.5.0.0 broadcast 10.5.0.31 gateway 10.5.0.1

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• Using Openfire for distributed XMPP-based video-chat

  - by Yitzhak

  I have been tasked with setting up a distributed video-chat system built on XMPP. Currently my setup looks like this: Openfire (XMPP server) + JingleNodes plugin for video chat OpenLDAP (LDAP server) for storing user information and allowing directory queries Kerberos server for authentication and passwords In testing with one set of machines (i.e. only three), everything works as expected: I can log in to Openfire and it looks up the user information in the OpenLDAP database, which in turn authenticates my user with Kerberos. Now, I want to have several clusters, so that there is a cluster on each continent. A typical cluster will probably contain 2-5 servers. Users logging in will be directed to the closest cluster based on geographical location. Something that concerns me particularly is the dynamic maintenance of contact lists. If a user is using a machine in Asia, for example, how would contact lists be updated around the world to reflect the current server he is using? How would that work with LDAP? Specific questions: How do I direct users based on geographical location? What is the best architecture for a cluster? -- would all traffic need to come into a load-balancer on each one, for example? How do I manage the update of contact lists across all these servers? In general, how do I go about setting this up? What are the pitfalls in doing this? I am inexperienced in this area, so any advice and suggestions would be appreciated.

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• Should I completely turn off swap for linux webserver?

  - by Poma

  Recently my friend told me that it is a good idea to turn off swap on linux webservers with enough memory. My server has 12 GB and currently uses 4GB (not counting cache and buffers) under peak load. His argument was that in a normal situation server will never use all of its RAM so the only way it can encounter OutOfMemory situation is due to some bug/ddos/etc. So in case swap is turned off system will run out of memory that will eventually crash the program hogging memory (most likely the web server process) and probably some other processes. In case swap is turned on it will eat both RAM and swap and eventually will result in the same crash, but before that it will offload crucial processes like sshd to swap and start to do a lot of swap operations resulting in major slowdown. This way when under ddos system may go into a completely unusable condition due to huge lags and I probably will not be unable to log in and kill webserver process or deny all incoming traffic (all but ssh). Is this right? Am I missing something (like the fact that swap partition is very useful in some way even if I have enough RAM)? Should I turn it off?

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• Auto-restart mysql when it dies

  - by Los Frijoles

  I have a rackspace server that I have been renting to run my personal projects upon. Since I am cheap, it has 256Mb of RAM and honestly can't handle alot. Every once in a while, when there is a sharp uptick in traffic, the server decides to start killing processes and it seems that mysqld is a popular one for it to kill. I try to visit my site and am greeted with the message that there was an error establishing the database connection. Inspection of the logs reveals that mysqld was killed due to lack of memory. Since I am still as poor as I was yesterday and don't want to upgrade my rackspace VM's RAM, is there a way I can tell it to automagically restart mysqld when it dies? I have a thought to use something like crontab, but alas, I don't know exactly what to do there either. I guess I am product of the "Linux on your desktop" generation since I can do most things on my desktop and laptop (which run Linux almost exclusively), but still lack a lot of server administration skills for Linux. The server runs CentOS 6.3

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• Outbound ports to allow through firewall

  - by dunxd

  This question was asked before, but in a rather general way. I'm asking more specifically based on my current requirements. We have a number of remote offices made up of a bunch of PCs and an ASA 5505 which is used as firewall and VPN termination point. In the offices we share the internet connection with one or more other organisations over whom we have very little control, asides from the config on the ASAs. For a bunch of reasons I'd like to lock down these ASA 5505s to only allow outbound traffic to ports used by applications we know we need. I'm putting a standard config to roll out to all the ASAs, and if we need to open up ports for the other orgs we can do it on request. But I want to leave open the most commonly required ports so we can get up and running without waiting on other folks technical staff to get back. I plan to allow the following TCP ports to support commonly required resources: POP3 (110 and 995) HTTP (80 and 443) IMAP4 (143 and 993) SMTP (25 and and 465) The question really is, what other ports do I need to leave open to allow for "normal" working. I've seen UDP port 53 for DNS as one. Are there any others that would be worth opening up? Just to note - I'll also be setting up monitoring systems to keep an eye on the ports we do allow. Any of the above could be misused of course. We'll also back all this up with signed agreements. But I'm aiming for a technical solutions where I don't have to start out with the full requirements of everyone we share connections with. See also: outbound ports that are always open

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• External HDD connecting via USB disconnects wireless LAN connection

  - by Kensai

  Strange problem. I have this MEDION Akoya PC that has a dedicated bay to slide an external HDD sold separately. It's very handy indeed cause the slot is providing a fast USB 3 connection and power to the HDD unit, without extra cables. All works fine except this show-stopper behavior to disconnect me from the router once I slide in the unit and it powers up. The moment I connect the unit the (normally) three-four WiFi connections I see in my neighborhood disappear and my own to the router loses its signal strength (no Internet traffic is possible). After a while it throws me off that one as well, never to connect me again as long as the unit is powered. Once I disconnect the HDD the various signals come back and it automatically reconnects to my own. What takes? Are we in front of a serious design fault by MEDION here? Does the spinning of the HDD on top of the PC cause electromagnetic interference strong enough to throw off my WiFi connectivity? Is it a simple USB problem? Some kind of strange hardware conflict? Where should I look?

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• How to setup IIS 7.5 Reverse Proxy for quite a few internal servers - Server Farm?

  - by Tim Murphree

  I have tried for a few days, but I'm lost. Here's what I'm trying to do: I want to setup an IIS 7.5 as a Reverse Proxy for about 30 internal HTTP servers, located on my internal LAN. Everything is running on port 80. The internal servers are really IP based webcams. Here is scenario: www.mycamserver.com/cam1 192.168.1.101 www.mycamserver.com/cam2 192.168.1.102 and so on, until.. www.mycamserver.com/cam30 192.168.1.130 I have installed ARR and URL Rewrite. So far, I have managed, at one time, to seem to forward an incoming URL to an internal server, but the page would not fully load (error 404). Also, I setup a Server Farm, but it seems all traffic is now set to the first node on the Server Farm (192.168.1.101). However, at least the page loads and runs correctly. I simply want to do an exact match, for example, "cam14", and reverse-proxy / rewrite to a corresponding internal server address - "192.168.1.114".

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• How does everyone set up AWS for PHP with a git workflow while worrying about distributing EC2?

  - by Parris

  Hello, I have been looking for something like heroku but for php, and after much frustration (and almost finding what I need, but not quite) we decided to just go with AWS without any other abstraction. We are using PHP 5.3 (and CakePHP 1.3), and are currently using git. Ubuntu seems like the easiest way to get both of those on there and we will most likely use that. We aren't really going worry about outgoing email. We are using smtp through gmail, but will most likely switch to some other service eventually. I had 3 questions: 1) I have been looking at Zend Server, and I am not quite sure how that is more beneficial than xampp. Perhaps it is not? 2) I suppose to make the application scale we would need multiple instances of some ec2 ami. Then just duplicate it and such. The question then becomes how do we make sure all EC2 instances are up to date? 3) I understand the concept of load balancing to some degree. I understand that in 1 region you select a bunch of servers and have it load balance across them. The question then becomes well how about world wide? How do I make it so that traffic is directed to the correct ec2 server? I have heard of route 53, and tried signing up for that, but nothing appears in my control panel. Also perhaps it is just a DNS thing with my domain registrar? AHHH... some tutorial would be helpful!

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• Tunnell network requests with Windows 7

  - by mark

  I've Windows 7 64bit Pro client in a private LAN behind a Netgear wgr614v7 router. I've also a remote Debian server machine outside. I'd like to tunnel all (or specified ports/protocols) over this outside server, so when I'm on the Windows machine and I request serverfault.com it would not appear from the wgr614v7 public IP but from the server. But it's not only about HTTP traffic, it's basically about everything I'd like to: other TCP ports, even UDP, etc. It must be transparent to the application, e.g. they shouldn't be aware of this. All their requests just appear as being from the server and the tunnel between them takes care about the packets. I'm aware of e.g. Putty and forwarding individual ports or using it as a socks proxy, however not many applications to support this and the support in windows itself looks non-existent to me. I might add it should be something "reasonable" easy to set up. I've heard about PPTP but I'm unsure about it's security implications (by design). Should I go for VPN? There seem to be two common solutions for Linux (OpenSwan and StrongSwan), why would I pick the one over the other? I also fear that setting up a VPN might be quite complex, OTOH maybe it's the only sane way to do the things right? Or is OpenVPN sufficient? I'm seeking for open (source) solutions, what other options to I have or which direction should I head to?

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• Server high CPU load issue! ( Cpanel + CentOS 5)

  - by kenby

  Our server cpu load is high todays sometimes reaches to 560! .. We have the lastest Cpanel/whm and the kernel is update!while the load average is : Load Averages: 39.05 75.01 45.33 the apache log is: Current Time: Sunday, 30-Jan-2011 01:50:13 EST Restart Time: Saturday, 29-Jan-2011 21:51:20 EST Parent Server Generation: 2 Server uptime: 3 hours 58 minutes 53 seconds Total accesses: 149493 - Total Traffic: 2.4 GB CPU Usage: u9.17 s10.66 cu42.82 cs0 - .437% CPU load 10.4 requests/sec - 174.6 kB/second - 16.7 kB/request 121 requests currently being processed, 42 idle workers W_WWW.W_..W.W_W_WCWW..W...W.WWW.WWWW.WW.C_W_.W.WW.WC..W.WW.WW .W.W.W...WWWW...WW.CC.C.._W.WC.WW_WW._W....W.WWW.W.WWW.W..W WW.....WW.W_WWWWW..WCRW..WWCW.WWW__.WWWWCW_W._._WW_W...W...W _W..W..WW.W...._W..._WW.W.WWW.._W.WWW.WWW....WW_.C...W._ Scoreboard Key: "_" Waiting for Connection, "S" Starting up, "R" Reading Request, "W" Sending Reply, "K" Keepalive (read), "D" DNS Lookup, "C" Closing connection, "L" Logging, "G" Gracefully finishing, "I" Idle cleanup of worker, "." Open slot with no current process What cause this high cpu load while the apache cpu load is fine? the mysql process is also fine.. the cpu load is still high even if I stop mail-http-mysql services!

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• [SOLVED} How do I restore my audio after uninstalling Ventrilo?

  - by Marcx

  Hi, I've a Dell studio 1555 bought on september with Windows 7 64bit Professional on it. The audio device works proprerly, while listening to audio contents (from disk or internet) When I use Ventrilo, the audio from other people sounds good and I hear their voices clearly When I use any other VOIP programs like Teamspeak 3, MSN or Skype, I hear a disturbed voice, and it's impossible to comprehend something... Anyway everything worked fine until I installed Ventrilo, but removing it didn´t solve my problem. Update: Here's a sample of how I hear others people voices.. Audio Sample After some tests, also the desktop has the same problem. (I tried TeamSpeak3) Here are some details on my laptop and desktop Laptop Dell Studio 1555 Core 2 Duo P8600 2.4Ghz 4Gb Ram Dual Channel Ati HD 4570 512Mb dedicated (up to 2048) IDT High Definition Audio Desktop Motherboard Asus P5KPL-AM Dual Core CPU E5200 2.50Ghz 2x2GB PC6400 Dual Channel Ati Radeon HD 4650 512MB VIA High Definition Audio Both computers have Windows 7 Professional 64Bit. So how do I restore my audio? SOLVED The problem was in router firmware, there was a bug that recognized VoIP traffic as a DOS attack and the router grambled every packet... I've installed the newest firmware and everything is fine :)

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• Apache forwarding without redirecting (application won't follow redirects)

  - by DrewVS

  Recently we had to move /task to /public/task, and I'd like to configure Apache to redirect accordingly. However, using mod_rewrite, though it works in the browser, seems to break applications making api calls to the above location. What happens is the application returns a page with the message saying the page was moved, but the app doesn't follow the redirect. So, is there a way to simply forward any traffic to /task to /public/task without 'redirecting', i.e, returning a redirect status code? EDIT: Here's a little more information. I've found a simple test to clarify what I'm trying to fix. Here is the URL path that needs forwarding: https://mydomain.com/task Needs to go to: https://mydomain.com/public/task If I use curl against the original domain, it just returns a redirect page notice. If I add the -L flag, which tells curl to follow redirects, it then follows the redirect successfully. I assume something very similar is happening in the application (which I don't have access to) that makes calls to the /task URL path. Since I cannot modify the application to make it follow redirects properly, I'm looking for a solution I can implement in Apache.

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• Non-volatile cache RAID controllers: what kind of protection is there against NVCACHE failure?

  - by astrostl

  The battery back-up (BBU) model: admin enables write-back cache with BBU writes are cached to the RAID controller's RAM (major performance benefit) the battery saves uncommitted and cached data in the event of a power loss (reliability) If I lose power and come back within a day or so, my data should be both complete and uncorrupted. The downside to this is that, if the battery is dead or low, OR EVEN IF IT IS IN A RELEARN CYCLE (drain/charge loops to ensure the battery's health), the controller reverts to write-through mode and performance will suffer. What's more, the relearn cycles are usually automated on a schedule which may or may not happen in the middle of big traffic. So, that has to be manually disabled and manually scheduled for off-hours if it's a concern. Annoying either way. NV caches have capacitors with a sufficient charge to commit any uncommitted-to-disk data to flash. Not only is that more survivable in longer loss situations, but you don't have to concern yourself with battery death, wear-out, or relearning. All of that sounds great to me. What doesn't sound great to me is the prospect of that flash module having an issue, though. What if it's completely hosed? What if it's only partially hosed? A bit corrupted at the edges? Relearn cycles can tell when something like a simple battery is failing, but is there a similar process to verify that the flash is functional? I'm just far more trusting of a battery, warts and all. I know the card's RAM can fail, the card itself can fail - that's common territory, though. In case you didn't guess, yeah, I've experienced a shocking-to-me amount of flash/SSD/etc. failure :)

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• Secure filesharing protocol for fileserver

  - by Hugo

  I'm setting up a fileserver, and I want lots of clients to easily access it. Up to now I've always used SSHFS to share between different PCs, but since I'm setting up a single fileserver, I'm looking for other common alternatives. Up to now I've seen: AFS: It seems it has no security, traffic is unencrypted, so it would require an SSH tunnel. If I'm to use SSH, I'd just use SSHFS. NFS: Same as above. Also, setting up the server is not so straighforward, it doesn't seem to be KISS enough - at least not for my liking. SMB: Same as AFS. It also seems not to be too well documented, and technically, seems a bit poor. It also seems the protocol isn't formally standardized. SSHFS has security, but as a downside, requieres every user to have an account on the server - there's no way to make a certain directory PUBLIC either. I don't think it has locking, and isn't very fault-tolerant. Are there any alternatives I've missing?

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• what is best multi-server configuration with OpenVPN

  - by sebut

  We have a number of Database severs running MongoDB on Debian plus a number of Application servers also on Debian. The db servers hold replicating db clusters, so they need to talk to each other. Application servers need to talk to all db servers (for reasons of fault tolerance). The servers are potentially spread across multiple hosting centers, so we need secure channels between all servers. The number of servers is bound to grow, so we need a VPN solution that's easy to maintain and expand. This is why I feel that SSH that we use for testing might not be up to the task and OpenVPN seems the way to go. I have ruled out TAP, since I understand that this would mean all traffic going to all the servers - perhaps this is a misunderstanding and TAP acts more like a switch? With TUN devices I imagine that all DB servers would live in their own separate subnet, they would also need a client configured to be able to connect to each of their peers. The application servers could live in a common subnet range with a client config only. Does this sound like a reasonable setup? Strangely, on the web I did not find anything about multi-server with OpenVPN. Thanks for all insights and ideas!

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• Allow more websocket connections

  - by Switz

  I want to load balance my node.js (DerbyJS to be specific) application on a basic Linode (512MB ram). It can probably take more than one process running at once. The querys/database does not concern me as I'm not doing anything intensive. The problem at the moment is that it can only handle up to ~40 websocket connections at once. I would love if I could get that number in the few hundred+ range. I anticipate a lot of traffic on launch due to the fact that it's a highly niche community with an engaged audience, but after it should be fine with just ~20-40 connections at once, which it handles perfectly as of now. I don't mind spending a bit of money for a week or two worth of running, but I also don't want to switch production environments. How can I test the process to see how many instances I am able to run on the box? Will increasing the number of processes increase the amount of websockets I can handle, or is that a limitation of the server's network? I have an old Macbook Pro running Linux sitting next to me that has 2GB ram and a 2.8 Dual Core Processor. Could I use this to handle some of the extra load? I could probably load balance with nginx to its IP. I'm on a FiOS home network. If you have any suggestions, I'd really appreciate it. Thanks

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• Can I host multiple sites with one Amazon EC2 instance [duplicate]

  - by user22

  This question already has an answer here: Can you help me with my capacity planning? 2 answers I currently have VPS server and I pay around $75 per month and I get: 40GB HD 2Gb RAM 100GB BW 6 core cpu (but i dont use much) I have only one live website running and traffic is only max 100 user visit per day. I mostly do the my testing stuff and some of my inter sites for playing with coding. But I do need one server. I am thinking of moving to Amazon EC2 if the price diff is not so much because then I can learn some more stuff. I am thinking of getting the 3 years Heavy utilization Reserved instance because my server will be running all day and night. I tried their online caluclator with Medium Instance Heavy reserved for 3 years for EC2 it comes $31 per month(effective price) and for EBS and S3 , I think even if thats it $40 for all other stuff. I will be at no loss for what I am getting at present. Am i correct or I missed something?? Now In my current VPS I have Apache for PHP sites and MOD wsgi for python sites. I am not sure if I will be able to do all that stuff in Amazon EC2. Can I host python and PHP sites both in Amazon EC2 instance using Named Virtual Hosts and Ngnix

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• How much Ram should I need on my VPS package? Am I being ripped off?

  - by Tamerax

  Hello! So, I'm currently on a VPSVille Cpanel3 account that has 768 MB guaranteed ram and 2048 MB burst ram (full details here: http://www.vpsville.ca/cpanel-vps). It's running CentOS, Cpanel, Apache and FastCGI. On the server itself I have a joomla community site with a forum system that generally has about 20 people on it max at any point and even then, during the evening, no one. It's a pretty small site but has a number of modules running on it. It gets about 6000 visits a month. Also on the server is a wordpress site that gets about 80-150 visits a day, 2 other wordpress sites that aren't developed yet so they don't get any traffic at all and 2 static html websites that also only get about 500 hits a month. All in all, no huge sites. The issue is that I get "out of memory" errors fairly frequently and it kills my server and I need to reboot it in order to get all my sites up and running again. It seems to me that I shouldn't have these issues with that much ram allotted to my account and everytime I send in a support ticket, they just tell me to upgrade the ram. Now, I'm still pretty new to all this so I'm not a good judge of how much I really need for my sites to run. I don't know if my sites really do need this much OR vpsville has oversold there servers, they don't actually have those resources available and I'm getting ripped off. So, how much ram should I be using with my current setup? Thanks!

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• How to minimize the risk of employees spreading critical information? [closed]

  - by Industrial

  What's common sense when it comes to minimising the risk of employees spreading critical information to rivalling companies? As of today, it's clear that not even the US government and military can be sure that their data stays safely within their doors. Thereby I understand that my question probably instead should be written as "What is common sense to make it harder for employees to spread business critical information?" If anyone would want to spread information, they will find a way. That's the way life work and always has. If we make the scenario a bit more realistic by narrowing our workforce by assuming we only have regular John Does onboard and not Linux-loving sysadmins , what should be good precautions to at least make it harder for the employees to send business-critical information to the competition? As far as I can tell, there's a few obvious solutions that clearly has both pros and cons: Block services such as Dropbox and similar, preventing anyone to send gigabytes of data through the wire. Ensure that only files below a set size can be sent as email (?) Setup VLANs between departments to make it harder for kleptomaniacs and curious people to snoop around. Plug all removable media units - CD/DVD, Floppy drives and USB Make sure that no configurations to hardware can be made (?) Monitor network traffic for non-linear events (how?) What is realistic to do in a real world? How does big companies handle this? Sure, we can take the former employer to court and sue, but by then the damage has already been caused... Thanks a lot

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• Monitoring Between EC2 Regions

  - by ABrown

  I'm working on a small EC2 project that involves a handful of servers in two different regions (US East and EU West). My first task is to implement a Nagios monitoring solution. Monitoring within a region is simple - I just use the private domain names/IPs, but I'm a little unsure of the best way to handle monitoring the second region without setting up a second Nagios install. The environment is fairly static, so I'm not going to be scripting the configuration with the EC2 tools just yet. As I see it, I have two options. Two Nagios installations (which is over-kill for the small number of servers I'm dealing with). Pros: I don't have to alter the group permissions nor do I have to pay for the traffic, redundancy in the monitoring solution - I could monitor the Nagios servers. Cons: two installations to deal with and I'd need to run another server instance. Have the single installation monitor both regions. Pros: one installation to deal with. Cons: slightly reduced security - security group will have to have NRPE (5666) opened for one source IP and also paying for a small amount of bandwidth at the Internet rate for data transfer between the regions. I guess my question is - how have others handled this problem and what are your recommendations? Thanks!

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• PPTP VPN on Server 2008 Enterprise

  - by Mike K

  I asked this question on Server fault and was told that was not allowed so im moving it here. I am running Windows Server 2008 enterprise in my HOME network inside of vmware workstation. I am running this on my home network to setup a PPTP VPN connection at home. I have correctly setup everything I needed to make it work, including opening all the ports, 1723 and 43 (GRE). I am able to connect just fine, but when I connect I dont have internet unless I uncheck use remote gateway. The thing is, I want to use the remote gateway to route all my traffic through that connection. Can someone tell me why this isnt working and how to get it to work. When I have remote gateway checked, and I do an ipconfig I dont get a remote gateway for the VPN connection, its 0.0.0.0 when id assume if connected properly should be 192.168.1.254 (my ATT Home Router). Also, if I cant get the remote gateway issue to work, and I have to uncheck that box to get internet, does this mean my VPN session is no longer encrypted? I am fully aware the PPTP VPN is the weakest VPN encryption out there but still having that extra layer of security when im on an unsecure wifi connection makes me feel a bit better. Thank you for all your help in advance. Someone told me I need to setup a gateway or router configured on the server. If thats the case, how go I go about telling the remote co

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• vmware server 64 bit on ubuntu 9.10 64 bit with P2V windows 2003 SBS poor network speed

  - by RobertHC

  configuration is ubuntu 2.6.31-21 64 bit vmware 2.0.2 64 bit last release hardware is core 2 quad with 8GB ram guest is win 2003 server SBS 32 bit Dear friends, we have a converted physical to virtual windows sbs 2003, converted with last converter available nowadays http://www.vmware.com/products/converter/ vCenter converter. Running the P2V 2K3 SBS on vmware server, it does boot fine, but we do note an abnormal CPU activity and a poor lan speed. As attempts we did what follow. We removed all unneeded peripherals, we removed one NIC (phisycal server was 2 nics), we changed the vmx to ged the nic recognized as intel instead than amd, we removed 1 cpu (physical was 2 cpu), we removed anything was reported as failed driver from system events monitor. Nothing to do, no way and funny results. Let's read some tests results. All are made with the same file copied in different source folders. Copying from client side (both directions copy, to/from server) results are i.e. 10 seconds, copying the same files from server side (again from and to server) results are different... from client to server, speed is round about (bit more) 10 seconds, but from server to client direction is slower: double the time. Beeing very fast and launching a simultaneous copy "from server to client"+"from client to server", this made from the server side, results in a stuck traffic... 45 seconds to do the copy. vmware tools are installed and e1000 driver has been updated. With one processor CPU activity is still going up and down but much less than with two. Because of test, we installed win 2k8 STD 64 bit. We repeated all the above tests with exactly the same file result is just one: always 5 seconds (this matches the lan speed) Any idea about this issue is welcome and thank you if any. Kind regards R.

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• Private subnet for VM server host-only network

  - by Derek Pressnall

  At my current job, we distribute a product based on a Linux server with multiple VMs defined (using KVM / libvirt). We are planning to expose limited ports to the customer's network, and use iptables to direct inbound traffic to the appropriate internal VM. My question: is there a class of private subnets that I can use for the internal host-only network that is least likely to conflict with a client IP subnet? Specifically, if I choose a /24 out of any of the RFC-1918 defined private subnets (such as 192.168.x.x), there is a chance of conflicting with a customer-used range. I noticed that several current VM implementations default to 192.168.122.x -- is this due to an RFC that I'm not familiar with, and therefore this is a safe range to use (that most network admins would avoid)? Or did the various VM vendors just pick that range randomly? I guess I'm looking for an IP range that is more private than the existing private (RFC1918) addresses. The only other thought I had was to use one of the "Test Net" IP ranges reserved for documentation purposes (RFC 5737). Note, that I'm not worried about a customer's network blocking these IPs, as this is only internal to our server (packets get NATted before leaving the box). However this does seem more unorthodox than just sticking with the default 192.168.122.x/24 subnet.

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