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• Client side certificates in client browsers with unix server for management

  - by user146253

  We are currently running Unix dedicated servers for everything (Web cluster, database, FTP, batch, ...) except for a Microsoft Active Directory Certificate Services. The sole purpose of this Windows box is to provide client side certificates to our clients browsers. All our clients are required to install a client side certificate on order for them to be able to access our website. Is there an alternative in the Unix space? The purpose is to make sure only the approved hardware of an approved client can access our website. I'm open for any solution that provides me with this level of security. We are however talking about thousands of certified computers just so you can factor that in in a proposed solution. Optionally we would also like to be able to revoke access. With Regards.

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• How can I make a sub-domain point to a dynamic IP and the rest of the domain as it is hosted on a server with static IP?

  - by sleeping_dragon

  Basically, I have a domain mydomain.com hosted by a certain hosting company on its servers. I have access to the cpanel and can make changes a s per required. However, I want to host a dvr remote interface on one of its pages. The DVR is in my office which has a dynamic IP address. I first thought of using the numerous free DDNS services available. But then since I already own a domain name I thought of using that one. How do I do it?

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• MSSQL: Choice of service accounts

  - by Troels Arvin

  When installing MS SQL Server 2008, one needs to associate a service account with the installation (possibly even several accounts, one for the SQL Server Agent, one for Analysis Services, ..., but let's leave that for the case of simplicity). The service account may be local account, or a Windows domain account. If a domain account is used: Can MSSQL start, if connectivity to the domain controllers is temporarily down? If the answer is yes: Should each DBMS instance on each server have a separate account, or does it make sense to use a particular "MSSQL" domain account on all MSSQL-installations in the organization? If separate accounts are used for each instance on each server: Does it make sense to create a special MSSQL security group in the domain and place all the MSSQL service accounts in that group, perhaps to ease replication, etc? Is there a common, generally accepted naming convention for MSSQL service account(s)?

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• Red and blue are swapped on Youtube

  - by Aaron Digulla

  Since Sunday (April 1st), red and blue are sometimes swapped when I watch videos on YouTube. Examples are "Peeling Apple Like A Boss" (blue arms and apple) or, to my dismay, the famous Red vs. Blue series (like this video) which sucks. Here is a screenshot of the RvB episode at 1:28. Vimeo is OK, other web video services are OK, only most YouTube videos are affected ... well, all that I could find so far. This video looks OK in Firefox but it's broken in Chrome. The episode of RvB looks wrong in both browsers. Local videos look file. What could be causing this?

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• Possible to find what IP address caused a 403.6 error?

  - by Abe Miessler

  I have a website setup in IIS that is rejecting all IP addresses except for a specific set. I thought I had added my machines IP address to this list, but evertime I try to access I get the error: HTTP Error 403.6 - Forbidden: IP address of the client has been rejected. Internet Information Services (IIS) I would like to figure out what IP address it think I am coming form when it rejects me. I tried looking at the IIS logs and in the Security Event Logs but I'm not seeing anything. Suggestions on where to look?

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• Active Directory: trouble adding new DC

  - by ethrbunny

  I have a domain with 3 DCs. One is starting to fail so I brought up a new one. All are running Win 2003. Problem: there appear to be replication issues between the 4 machines but I can't figure out what's causing this. All are registered with the DNS as identically as I can make them. How do I know there is a problem? Nagios is telling me that the other 3 DCs are having KCCEvent errors and the new machine is reporting "failed connectivity" errors. Doing dcdiag on the new machine reports: the host could not be resolved to an IP address. This seems crazy as I log into it using the DNS name. I can ping it from the other three machines using this DNS name as well. repadmin /showreps from the new machine says its seeing the other 3 machines. Doing the same from one of the older machines doesn't show the new machine. I've tried netdiag /repair numerous times. No luck. There are no firewalls running on any of the machines. If I look at Domain info via MMC (on the new machine) it appears that all the information is current. Users, computers, DCs.. its all there. Im puzzled as to what step(s) I've missed in adding this new machine. Suggestions? EDIT: dcdiag from non-working: C:\Documents and Settings\Administrator.BME>dcdiag Domain Controller Diagnosis Performing initial setup: Done gathering initial info. Doing initial required tests Testing server: Default-First-Site-Name\YELLOW Starting test: Connectivity The host 312ce6ea-7909-4e15-aff6-45c3d1d9a0d9._msdcs.server.edu could not be resolved to an IP address. Check the DNS server, DHCP, server name, etc Although the Guid DNS name (312ce6ea-7909-4e15-aff6-45c3d1d9a0d9._msdcs.server.edu) couldn't be resolved, the server name (yellow.server.edu) resolved to the IP address (10.127.24.79) and was pingable. Check that the IP address is registered correctly with the DNS server. ......................... YELLOW failed test Connectivity Doing primary tests Testing server: Default-First-Site-Name\YELLOW Skipping all tests, because server YELLOW is not responding to directory service requests Running partition tests on : Schema Starting test: CrossRefValidation ......................... Schema passed test CrossRefValidation Starting test: CheckSDRefDom ......................... Schema passed test CheckSDRefDom Running partition tests on : Configuration Starting test: CrossRefValidation ......................... Configuration passed test CrossRefValidation Starting test: CheckSDRefDom ......................... Configuration passed test CheckSDRefDom Running partition tests on : bme Starting test: CrossRefValidation ......................... bme passed test CrossRefValidation Starting test: CheckSDRefDom ......................... bme passed test CheckSDRefDom Running enterprise tests on : server.edu Starting test: Intersite ......................... server.edu passed test Intersite Starting test: FsmoCheck ......................... server.edu passed test FsmoCheck dcdiag from working: P:\>dcdiag Domain Controller Diagnosis Performing initial setup: Done gathering initial info. Doing initial required tests Testing server: Default-First-Site-Name\AD1 Starting test: Connectivity ......................... AD1 passed test Connectivity Doing primary tests Testing server: Default-First-Site-Name\AD1 Starting test: Replications ......................... AD1 passed test Replications Starting test: NCSecDesc ......................... AD1 passed test NCSecDesc Starting test: NetLogons ......................... AD1 passed test NetLogons Starting test: Advertising ......................... AD1 passed test Advertising Starting test: KnowsOfRoleHolders ......................... AD1 passed test KnowsOfRoleHolders Starting test: RidManager ......................... AD1 passed test RidManager Starting test: MachineAccount ......................... AD1 passed test MachineAccount Starting test: Services ......................... AD1 passed test Services Starting test: ObjectsReplicated ......................... AD1 passed test ObjectsReplicated Starting test: frssysvol ......................... AD1 passed test frssysvol Starting test: frsevent ......................... AD1 passed test frsevent Starting test: kccevent ......................... AD1 passed test kccevent Starting test: systemlog ......................... AD1 passed test systemlog Starting test: VerifyReferences ......................... AD1 passed test VerifyReferences Running partition tests on : Schema Starting test: CrossRefValidation ......................... Schema passed test CrossRefValidation Starting test: CheckSDRefDom ......................... Schema passed test CheckSDRefDom Running partition tests on : Configuration Starting test: CrossRefValidation ......................... Configuration passed test CrossRefValidation Starting test: CheckSDRefDom ......................... Configuration passed test CheckSDRefDom Running partition tests on : bme Starting test: CrossRefValidation ......................... bme passed test CrossRefValidation Starting test: CheckSDRefDom ......................... bme passed test CheckSDRefDom Running enterprise tests on : server.edu Starting test: Intersite ......................... server.edu passed test Intersite Starting test: FsmoCheck ......................... server.edu passed test FsmoCheck P:\>

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• Unable to FTP, any ideas?

  - by Nick

  I'm using Windows Server 2003. I have the FTP services installed, router set to DMZ, and currently Anonymous logins allowed. (I know, security risk, but there's nothing important on there and not worried at the moment) So here's the thing... I can ftp to my computer, list directory, get files etc, BUT only if I'm using the command prompt. If I try to log in using IE or any FTP client it's just timing out. I've tried: username@ipaddress ipaddress username:password@ipaddress and not able to get any of them to work. Anyone have any ideas? Thanks!!!

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• How can I send super large files directly to another computer in the Internet for free?

  - by Cruise

  I regulary need to transfer very large files (30 GB) to my friend - financial statistics. I don't have any problem with bandwidth: it is very broad here. I did some research in the area, so: 1. I would not use FTP, as it is very tricky to get it working behind a NAT. 2. I would not use Skype/MSN/ICQ, as it is not designed for file transfer and it underperforms on the huge files. 3. I would not use file-sharing services, as I need to pay for big files (30 GB is a problem here) and I don't like holding any piece of my data on the third-party server. So, I need some smart tool that will do what I need: sending files directly browser-to-browser and not browser-server-browser. Is it so complex? Is there some web application in the Internet that can do this?

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• VMware virtual network adapters and Windows Firewall

  - by anonymous

  I am running VMware Workstation 7.1.4 on Windows 7 Enterprise SP1-U (x64). Aside from the physical network adapter, I have created a single virtual network adapter (VMware Virtual Ethernet Adapter for VMnet1) which is connected to (can be seen by) the host and the guests. My problem is, even after applying the "*NdisDeviceType = 1" tweak to the virtual adapter, making it disappear from the Network and Sharing Center, I still can't connect to programs running in the host from the guests, unless I specifically "allowed the program to communicate with the public network" using the Windows Firewall (which I don't want to do). This happens to all the programs and services running in the host (File and Printer Sharing, Database server, HTTP proxy, etc.) I am getting the impression that applying the "*NdisDeviceType = 1" tweak only hides a network from the Network and Sharing Center but not actually making it private. Any hints and suggestions?

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• VoIP on Netgear DGN 2000 and Lynksys PAP2

  - by David Brown

  I have a VoIP service running perfectly for outgoing calls but I cannot receive incoming calls. I have a Netgear DGN 2000 modem router on 192.168.0.1 and a Lynksys Phone Adapter PAP2 on 192.168.0.2. I have created 3 new custom services: Service Table Service Name Ports tlenfon(TCP) 5060 tlenfon2(UDP) 15000 tlenfon3(UDP) 35000 I have reserved the address 192.168.0.2 for the PAP 2 I have forwarded the ports for each service to the PAP2 Service Name Action LAN Server IP address WAN Users Log tlenfon ALLOW always 192.168.0.2 Any Always tlenfon2 ALLOW always 192.168.0.2 Any Always tlenfon3 ALLOW always 192.168.0.2 Any Always I have checked the Default DMZ and specified 192.168.0.2 What have I missed?

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• Linux kernel startup problems: how to analyze?

  - by java.is.for.desktop

  Hello, everyone! After manually updating the kernel from 2.6.33 to 2.6.34 on my OpenSuse 11.2 Notebook, it stops after the message Loading drivers, configuring devices... This stop can be interrupted with Ctrl-C, but when the system enters runlevel 5, no partitions are mounted (but the root partition), many services fail to start, and other strange things are going on. No X11. NOTE: I manually updated the kernel many times before, it worked. Yes, I know, in case of NVidia, the driver has to be recompiled. The question is: How can I analyze the cause of the problem? Doing dmesg gives me soooo much output, I can't "map" it to the output which I see at startup. The output does not contain the string Loading drivers, configuring devices, or similar.

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• how to manage credentials/access to multiple ssh servers

  - by geoaxis

  I would like to make a script which can maintain multiple servers via SSH. I want to control the authentication/authorization in such a manner that authentication is done by gateway and any other access is routed through this ssh server to internal services without any further authentication/authorization requirements. So if a user A can log into server_1 for example. He can then ssh to server_2 without any other authentication and do what ever he is allowed to do on server_2 (like shut down mysql, upgrade it and restart it. This could be done via some remote shell script). The problem that I am trying to solve is to come up with a deployment script for a JavaEE system which involves databases and tomcat instances. They need to be shutdown and re-spawned. The requirement is to have a deployment script which has minimal human interaction as possible for both developers and operation.

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• Monitoring User Login time

  - by beakersoft

  Hi, i have recently been given the task of trying to work out why the login time (not machine boot time) for some of our users seems slow. The vast majority of clients (95%) are running on XP sp3, Windows 2003 domain controlers. Most users have the same model of machine. I would like to be able to see how long each of the polices are taking to load (if possable split user and computer) and any other info that might help (services starting etc) I changed the userenvdebuglevel reg option to generate the userenv.log file but it did'nt contain very much info Thanks Luke

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• Port forwarding on D-Link DIR-615 super-slow, useless

  - by Jaroslav Záruba

  Hello I have replaced my old router with DIR-615 from D-Link, and now the port forwarding is so slow it makes the router practically useless. Accessing the router itself (admin UI) is without issues, no delay whatsoever. But when I try to access a service on another computer in the network the requests take minutes and minutes. (E.g. I can see source of my GWT-app main page, but loading additional CSS and JS files takes years.) If anyone could recommend any further diagnostics I should do to figure out what is happening it would be great. Few notes: happens with more services (web-app on Tomcat, viewing directory index via Apache) it does not make a difference whether the service is hosted on wired or wireless PC accessing the service on a localhost works fine turning off firewall on the target PC does not make difference either (makes sense) when I replace this router with the old one (both 192.168.1.1) everything works fine I see nothing suspicious in the router's log I believe I have the latest firmware (4.11) DIR-615 sucks, it already died once completely Regards Jarda Z.

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• Managing service passwords with Puppet

  - by Jeff Ferland

  I'm setting up my Bacula configuration in Puppet. One thing I want to do is ensure that each password field is different. My current thought is to hash the hostname with a secret value that would ensure each file daemon has a unique password and that password can be written to both the director configuration and the file server. I definitely don't want to use one universal password as that would permit anybody who might compromise one machine to get access to any machine through Bacula. Is there another way to do this other than using a hash function to generate the passwords? Clarification: This is NOT about user accounts for services. This is about the authentication tokens (to use another term) in the client / server files. Example snippet: Director { # define myself Name = <%= hostname $>-dir QueryFile = "/etc/bacula/scripts/query.sql" WorkingDirectory = "/var/lib/bacula" PidDirectory = "/var/run/bacula" Maximum Concurrent Jobs = 3 Password = "<%= somePasswordFunction =>" # Console password Messages = Daemon }

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• Windows RRAS multi-network routing

  - by Brent Pabst

  I am looking for advice, comments and suggestions from anyone who has used Windows RRAS (2008 R2 Pref.) as the primary routers for our multiple offices. We have multiple physical office locations and are looking into utilizing Windows Server 2008 R2 Core as redundant Active/Active routers/gateways for our network as opposed to a physical router from Cisco or Juniper, it costs a lot less! Any problems, issues or documentation anyone would recommend? We will still most likely have a firewall on the edge but the majority of our traffic will be inter-office with some external services. We will be using multiple Class B networks across our two offices.

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• VPN ipsec tunnel from router to single windows server computer (gateway-to-host)

  - by Chris Miller

  Firstly, is this possible? The situation: 2 different ISP's. One has several servers and a firewall running. The other is limited to only one virtual server with one network card running windows server 2008r2. I need to set up a site-to-site style VPN using IPsec between the firewall of one ISP and the windows host on the other (gateway-to-host). This host has to run a SQL-Server that I can access from the other ISP's servers through the VPN tunnel. It seems looking at the RFC for IPsec that this should be possible using the features of Windows 2008, but I can't get it to work so far... It seems that I can't access any services running on the same computer or IP address used as the tunnel endpoint? Thanks Chris

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• Chef cookbooks marked as executed

  - by Gonzalo Alvarez

  I have setup a Chef server in our network that I use to manage several nodes. These nodes have a chef-client installed executing as a daemon every X minutes. The problem is that every time the client runs, it executes the recipes for all the cookbooks, even those previously executed, so it consumes resources and sometimes it even breaks thinks (with services restarts, for example). I know that I can avoid executing a piece of code or a recipe I create as detailed here: Prevent chef recipe from executing previously executed action? but, would this mean that I should modify any cookbook that I download from the opscode repository. In other words, is it possible to make the chef server (or the clients) to mark the cookbooks as 'executed' as soon as they are executed the first time?

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• Would NetBSD be a good choice for a web server?

  - by Alexander

  I've the choice of crafting a NetBSD image for a Xen VPS host, and was just wanting to play around as I like BSD and wished to use it for my general web hosting. I will be hosting a low-mid traffic website and maybe a few other simple services. Do you think NetBSD would be a sufficient choice, in terms of general performance of multiple system users and fair amount of traffic to Apache compared to what Linux could normally handle? I am concerned if I do start to really like it and keep it, I may be limiting myself if I am to move further with my web host and get more traffic (and maybe a lot of FTP access and user shell accounts) Ken

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• cannot access my own computer through My Network Places

  - by WebMAOhist

  My home Windows XP Pro SP3 machine is DHCP client receiving configurations from ISP. Trying to access in WindowsExplorer -My Network Places - Microsoft Windows Network shows Workgroup with a delay of 3 min and then popups messagebox: Microsoft Windows Network Workgroup is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.The list of servers for this workgroup is not currently available OK I am logged-in as local machine Administrator. The internet is accessible (I am writing this post through it) The Firewall is disabled The "Computer Bowser" and all networking services, I could find, are running Control Panel -- Network Connections -- Properties (of connection) --- Internet Protocol (TCP/IP), btn Properties --- --- tab General, btn "Advanced..." -- tab WINS-- rbtn "Enable NetBIOS over TCP/IP" checked Why cannot I access my own PC (and shares on it) through My Network Places What is the possible problem? How to daignose the problem?

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• port forwarding using 3 static ip addresses

  - by Danny

  I am new to configuring routers. We have purchased a RV016 Cisco business router that has multiwan capability. What we are attempting to do is take map services from 3 different servers and assign 3 different static IP addresses and then forward port 80 through the router. A short term solution to building a proxy server. Is this possible? Right now we have a consumer grade Cisco router and assign a static IP and it works, we attempted the same settings on the business router and cannot get to the internet. We set it DHCP and it works fine, however we want to to forward the static ports not use DHCP.

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• Windows 7 Locking Executable Files

  - by James Burgess

  Since I've been using Windows 7 RTM (as opposed to the Beta and RCs), I've been having a peculiar issue with executable files. I first noticed it whilst using Visual Studio, in that when building a project, it would often fail saying that the output file was locked - but the problem has stemmed further. When I've executed an application, closed it (cleanly), and attempted to delete/move/rename/overwrite said file, Windows 7 tells me that the file is locked/access is denied. I've made use of software like LockHunter/Unlocker but it is seemingly unable to remove these locks (most of the time, it shows no locks at all). After about 5-10 minutes, the respective files are unlocked again, but needless to say this is a bit of a workflow-breaker (as it's not simply constrained to VS). I've done the usual tasks of virus/malware scanning, and turned up with absolutely nothing. I've got no peculiar services running, and the problem was not present before I installed a Windows 7 RTM version. Any help is greatly appreciated.

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• Windows Server Configuration Management Best Practices

  - by Anton Gogolev

  Chef/Pupper/Ansible are cool and all, but they are second-class citizens on Windows at best. We have a bunch of "snowflake" (one of a kind) machines (baremetal and virtual) that nobody really know what's going on with. What I want is to start establishing basic configuration management for said servers, starting from installing Windows, installing and enabling various Roles and Features, setting up Services, Shares, Users and deploying webapps. PowerShell DSC looks promising, but it's not yet here and appears to be over-engineered, Puppet and the like are again not first-class. There's a bunch of tooks and TLAs like Windows ADK, DISM, OCSetup, etc. and it seems to me that the "Configuration Management" story on Windows is not precisely rainbows and unicorns. What I want is a Puppet/Chef-like, lightweight tool (no System Center Configuration Management, please) which would allow us to "version-control our server infrastructure" and bring all the benefits of CM. So, where do I look for the tool that does this kind of thing?

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• Allowing outbound traffic with APF/iptables for OpenVZ container

  - by David

  I have apf installed on a OpenVZ container (proxmox 2.1). The config is pretty much vanilla and things are working. My external services like ssh and http are working. My problem is that all outbound traffic on http/https is blocked. How do I allow all outbound traffic for http/https. If I change EGF to 1 like this, all inbound and outbound traffic gets blocked EGF="1" EG_TCP_CPORTS="21,25,80,443,43,53" EG_UDP_CPORTS="20,21,53" EG_ICMP_TYPES="all" I opened a single outbound rule with the following # /usr/local/sbin/apf -a downloads.wordpress.org How do I allow all outbound traffic on http/https without blocking all traffic? Why would I allow all inbound ssh/http traffic and block all outbound traffic?

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• Does Basic User Authentication require 2-Phase communiation?

  - by RED SOFT ADAIR-StefanWoe

  My Application connects to the Internet to HTTP Services using boost::asio. Recently we added support for HTTP Proxys and Basic User Authentication. We implemented Basic User Authentication by just sending Authentication parameters with every HTTP call if a user configured a proxy in our program. Parameters are sent as described here: Authorization: Basic <base64 Encoded username:password> This works at least for one user and his proxy server. Other users report that their Proxy server replys with 407 Proxy Authentication Required My guess is that some proxy servers accept 1 one phase authentication and that others don't. I do not find any information that a 2 Phase communication is requested where the access always is denied for the first call by returning 407 and that only a second call is accepted. Our program yet does not retry the call if a 407 has been returned. Do we have to add this? I asked this question before on stackoverflow but did not get a sufficient answer.

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