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• Connect two subnets without router

  - by Shcheklein

  I got two Comcast routers with two different subnets on each. Every subnet contains 5 static IPs. Two questions: Are there any problems if both routers and machines from both subnets are connected into one switch? Security issues doesn't matter there. I need to know if there are some performance or other problems. Is it possible to make machines from different subnets to see each other if they all are connected into one switch? Some static routing, add ARP records or somethig else ... I just want to avoid configuring second ethernet adaptors, third router or something. And I need to connect these subnets vai high-speed local network.

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• CentOS Vulnerabilities - Exploits/Payloads

  - by Joao Heleno

  Greetings. I'm doing an academic work where I have to find vulnerabilities in CentOS and show how to take advantage of those same vulnerabilities. I'm no hacker and I'm finding this task to be of great difficulty, that is, I see all the security alerts and their descriptions but no explanation of how to take advantage. Maybe I'm being a little naive but all I want to know is if there is any tool I can use to show that CentOS 5.0 vulnerability XPTO exists and to show it "working". If possible something like CVE-2007-0001 exploit tool, CVE-2007-0002 payload and so on. Thanks.

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• Why my pendrive is showing used space when it is actually empty?

  - by Deb

  I recently got some virus in my pendrive. I removed them using Microsoft security Essential and cleared all data. But it is showing that 47.1MB of space is being used. Is it due to the virus affect? There is no hidden files on the pendrive and I have also set Show hidden files in the Folder and search option. Permission is also granted to everyone. I also use disk management to check any issue but nothing found. I think formatting will solve the the problem but in that case I will not be able to see the data. Is there any command to see the files in cmd or any other way?

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• Making a cracked or activated windows uncracked

  - by ugurcode

  I have a pc which has windows 7 license but I installed windows from an image i downloaded and it is already activated. for validating genuine microsoft, i need to entet my own product key but the necessary activation tools do not exist in my windows folder. What do? I googled stuff but because the keywords are too broad I couldn't find a useful tool DAZ doesn't work, activation button doesn't show up. When I enter my original key to Windows Anytime Upgrade, I get this error When I attempt using slmgr, I get this error I used sfc /scannow Now slmgr is existing, I entered slmgr.vbs -ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX (replacing X es with the cd key) the operation successful. Now I have installed Microsoft Security essentials, which means the problem is solved. Main steps are here open cmd enter Enter "sfc /scannow" enter slmgr.vbs -ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX Success

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• DYNDNS setup with TightVNC on Windows Server 2008 R2

  - by StealthRT

  Hey all, i seem to be having a problem with getting ports to forward on my Windows Server 2008 R2 PC. I already set all my port forwarding for 5900/5800 on my router for my PC's IP address (192.168.1.22) but when i try to use the TightVNC PFPortChecker on port 5900 it tells me its not opened! I can not even connect to my DYNDNS server name (xxxxxxx.dyndns.org). As a side note, i am running Windows XP SP3 within a VirtaulBox inside Windows Server 2008 R2 but running the PFPortChecker in Windows 2008 R2 brings the same results as it does in the VM. I also added them to the Windows Firewall Advanced Security form to add those inbound ports for full access. What could i possibly be missing? Thanks for your time! David

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• Mac OS X Server add server user

  - by Meltemi

  What's the recommended way to add a user to Mac OS X Server that doesn't need all the hoopla associated with Workgroup Manager? There are many users pre-configured in Mac OS X Server (www, root, ldapadmin, etc.) that don't have "Full Name" or mail accounts, etc. I'd like to create a 'svn' user to be the owner of our Subversion Repository as per this tutorial: If you've decided to use either Apache or stock svnserve, create a single svn user on your system and run the server process as that user. Be sure to make the repository directory wholly owned by the svn user as well. From a security point of view, this keeps the repository data nicely siloed and protected by operating system filesystem permissions, changeable by only the Sub- version server process itself. Wondering if there's a way outside of WorkgroupManager and OpenDirectory as this account will be entirely server based. Is this still sound advice under OS X Server? If so what's the easiest way to create the user (Mac OS X Server doesn't seem to respond to useradd).

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• Better antivirus for Windows Server 2008 R2 x64 VPS

  - by raja

  I have only one VPS with Windows Server 2008 R2 x64 and want to buy an Antivirus. I tried NOD32 but they do not give less than 5 users in business edition (I have only one server). Kaspersky may be another solution but whether should i go for Internet Security or Anti-virus? I have few website hosted on this server and user have ability to upload .jpg, .gif, .zip files in few of the folders. Apart from above two any other suggestions on Antivirus that works well on above configuration and available for only one user? Thanks

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• Win7 to Win7 Remote Desktop Not working, Xp to 7 working fine

  - by vlad b.

  Hello, I have a small home network and recently i tried to enable remote desktop for one of the pc's. I have a mix of Windows 7, Windows Vista and Xp runing alongside ubuntu, centos and others (some virtual, some real). I have a few Windows 7 pc`s that can be connected to using remote desktop from inside and outside the network (port redirects on routers, etc, etc) and some Xp ones. The trouble is when i tried to do the same thing to a Win7 laptop i discovered i can't connect to it from another win7 pc inside the home network. To sum it up Working: xp -- win7 not working: win7 -- win7 What i tried - disable and enable remote desktop (my computer - remote settings) - removing and adding users to the remote settings window - adding a new user to the machine, administrator or 'normal' user - checking the firewall settings on the machine and set 'allow' to remote desktop for both 'home/work' and 'public'networks Any tips on what should i do next? It displays ' .. secure connection' and after that the window with 'Your security credentials did not work' and it lets me try again with another user/password..

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• Plesk 10 Postfix with multiple IP adresses and SSL certificates

  - by JulianB

  We are currently running a root server with Debian 6 and Plesk 10.4.4. We have some virtual hosts using one IP adress (shared) - e.g. example1.com - and another virtual host using a dedicated IP address (example2.com). Is there a way to configure postfix to do the following Always use the IP address of the virtual host to which the e-mail account belongs (so that an e-mail from [email protected] will originate from the shared IP-Address and an e-mail from [email protected] will originate from the dedicated IP? Use different certificates for TLS for example1.com and example2.com? If the latter is not possible: Could any problems arrive when using example1.com as certificate for example2.com users? Of course, example2.com users would have to configure their clients to use example1.com as the SMTP server name to avoid annoying security warnings. But if we still would be able to get the effect of the first point that would still be acceptable.

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• Setting up SSL on Glassfish V2 or V3

  - by javanix

  My employer recently purchased a Trustwave SSL certificate. Trustwave advertises support on their website, but they don't give an installation guide like they do for their other servers at all, and I am having a difficult time getting it configured correctly with GlassFish. I found this http://blogs.sun.com/enterprisetechtips/entry/using_ssl_with_glassfish_v2 blog post that is sort of helpful, but I'm still unable to get it working (I think the issue is that I don't fully understand the GlassFish keystore, so I am modifying it incorrectly and the server throws security exceptions on startup). Does anyone have any experience doing so, and can you point me to a decent resource? Thanks for any help.

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• Active X Control issue on Terminal Server 2003

  - by Saif Khan

  I have a security camera system which can be viewed remotely via a web browser. It works excellent only with IE 6 and up and requires an ActiveX control "ERViewer.ocx". Some users require to view the cameras via Windows Terminal Server, but when they try to open the link to the DVR they get the prompt ti install the ActiveX and then the browser crashes when they try to install it. I logged in as admin and got the same issue. I called the tech support of the DVR but they have no idea, in other words, the usual useless tech support. Here is what I get in the error log Faulting application iexplore.exe, version 7.0.6000.16735, faulting module ERViewer.ocx, version 1.6.0.8, fault address 0x000064d7. I am sure it could be some kinda permission getting an ocx to run in IE. What else can I tweak?

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• Should a database server be in a different VM instance as an application?

  - by orokusaki

  I'm setting up a database server as a separate VM in my server so that I can control resources, and make backups of just that instance. I own a server that will reside in a colo soon. Is this the best way to approach my DB regarding scalability? Are there any security concerns? Do I listen at localhost still, even though it's a separate instance? And, is there any benefit to running your DB (PostgreSQL in my case) in the same machine as your application (web based SAAS application in my case)?

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• Creating Multiple Users on Single PHP-FPM Pool

  - by Vince Kronlein

  Have PHP-FPM/FastCGI up and running on my cPanel/WHM server but I'd like have it allow for multiple users off of a single pool. Getting all vhosts to run off a single pool is simple by adding this to the Apache include editor under Global Post Vhost: <IfModule mod_fastcgi.c> FastCGIExternalServer /usr/local/sbin/php-fpm -host 127.0.0.1:9000 AddHandler php-fastcgi .php Action php-fastcgi /usr/local/sbin/php-fpm.fcgi ScriptAlias /usr/local/spin/php-fpm.fcgi /usr/local/sbin/php-fpm <Directory /usr/local/sbin> Options ExecCGI FollowSymLinks SetHandler fastcgi-script Order allow,deny Allow from all </Directory> </IfModule> But I'd like to find a way to implement php running under the user, but sharing the pool. I manage and control all the domains that run under the pool so I'm not concerned about security of files per account, I just need to make sure all scripting can be executed by the user who owns the files, instead of needing to change file permissions for each account, or having to create tons of vhost include files.

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• How can I get more info on high-CPU rundll32.exe process?

  - by Herb Caudill

  I recently clean-installed Win7 on my HP8530. Everything works well most of the time, but for the last few days, every morning after my computer has been idle overnight, I find that rundll32.exe is consuming a steady 50% of CPU (i.e. all of one processor). The only way I can make it go away is by restarting. Process Explorer has no information on what the process is running. If I try to do anything to rundll32.exe (kill process, suspend, etc.) I get "Error opening process: Access is denied." None of the tabs in the ProcExp properties dialog has any information at all. I have Norton Internet Security running with the latest definitions; I've run a full system scan and it gives me a clean bill of health. How can I get more information on why this process is running?

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• Googlebot cant access my site webmaster tools reply Unreachable robots.txt

  - by Ahmad Ahmadi

  When I try to fetch my site as a googlebot in webmaster tools it return Unreachable robots.txt, after investigate I understood google bot can see my server: tcpdump | grep google it return that google can access my server with IP 66.249.81.172 or 66.249.75.111. but there is not any think in access log or error log or other apache logs. cat access_log | grep google or cat error_log | grep 66.249.81.172 Other bot (bing,...) can access apache but google cant. there is not any problem in my robots.txt or its permissions because as you know robots.txt is not necessary so I delete it but again webmaster tools returned Unreachable robots.txt not 404 not found! information about server: Server OS : CentOS 6 Web Server : Apache 2.x Firewall : IPTables is stoped SELinux is Disabled There is not any think else for security on my server. how can I investigate the problem and is there any other command that can help me to find the problem.

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• Cannot open the device or file specified for office files

  - by MadBoy

  Recently I've noticed on couple of computers that when users try to open Office files or links (to server path) to office files they get this error "Windows cannot access the specified device path or file", but the files itself open up without problems. This happened on 4 Windows XP computers already with Office 2003 installed. One one computer it was XLSX file being opened and every time user executed it, it opened up, but the error pops out. On the other hand when I open it directly from Office it works fine, without error. On another 3 computers it was after user pressed on the link to Access DB and it error out, but Access began MSI configuration (since it was first time user logged in to his computer) and in the end it opened up properly. After closing access and doing it again problem disappeared. Some faulty patch ? Eset Smart Security 4 is installed.

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• How can I use Windows Firewall to only permit the Windows Update service to make an outbound connection?

  - by microsmash

  I'm trying to tailor my Windows Firewall settings (using the Windows Firewall with Advanced Security console) to only permit programs that need to access the Internet with an outbound connection to do so. This works fine for normal applications as I can just allow the program, but services that load in the svchost.exe process are a problem. The only services I actually need to give access to are Windows Update and the Background Intelligent Transfer Service (and even that, I would only like Windows Update to be able to submit jobs to, but that's another issue.) Is there a method to only allow these to be permitted an outbound connection, and not any of the other services loaded in svchost?

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• IPSec policies on Mac OSX

  - by Helder

  Is there a way to configure IPSec policies on a Mac OSX, in a similar way to what you can do in Windows, with "Connection Security Rules"? I need to implement a service that will use an IPSec tunnel, and I might have to provide it to Macs as well. As I don't have access to a Mac, I've done some reading, and it seems that there is something called "racoon" that handles IPSec. Can anyone confirm this? Further, we will need to use certificates for authenticating the IPsec tunnel as well (as opposed to pre-shared keys). Can anyone confirm that this is also possible from a Mac OSX? Thank you!

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• windows firewall and network location switch after establishing a vpn connection

  - by Konrads

  Hello, I am looking for a reasonable solution for network location switching after VPN connection is established for Windows 7. The scenario is as follows: For location public (employee plugging in his laptop in hotel, public wi-fi,etc) all inbound connections are restricted, only outbound VPN + www is enabled. Employee then initiates a VPN connection, VPN pushes routes to 10.0.0.0/8 subnet Now I would like to have lax security rules for traffic from/to 10.0.0.0/8 that comes through the VPN interface, while still protecting the laptop from traffic that comes via uplink interface as if it was private. How to achieve this switching and duality? One option I see is switching to IPSec...

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• Ubuntu 14.04 VPS won't boot the latest kernel on XEN

  - by aztekk

  I have a XEN VPS and it's been running Ubuntu for some years now. AUtomatic security upgrades are on and I've manually upgraded it continously and also done releas-upgrades whenever there's been a new release. All has been working great! But now, after upgradeing to 14.04 LTS, the VPS won't boot the latest kernel (3.13.0-24) even though it's set to default. It always failback to 3.2.0-60 and for some reason the VPS seams very unresponsive, compared the before. The support wrote in a ticket something about compiling my own kernel, with pvops enabled, but I'm not sure how to do that, or why I should compile my own kernel. Doesn't Ubuntu support to be run on a XEN host?

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• Installing SDM on a Cisco 2821 ISR

  - by Sam Sanders

  I trying to change the configuration of our router, it's a Cisco 2821 Integrated Services Router. I don't know much about Cisco products. While looking at the PDF manual for the router I notices it talked about SDM Security Device Manager. But when I point my web browser at the IP address of the router, it give me a very simple web interface. It's sort of like a string builder for CLI commands. I'm guessing SDM was not installed on it. So my question how would I go about do that? I found this link (below), but I'm a bit new to networking. So any advice would be welcome. http://www.cisco.com/en/US/docs/routers/access/cisco_router_and_security_device_manager/software/quick/guide/SDMq7.html

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• dead man's switch for remote networking interventions

  - by ascobol

  Hi, As I'm going to change the network configuration of a remote server, I was thinking of some security mechanisms to protect me from accidentally loosing control on the server. The level-0 protection I'm using is a scheduled system reboot: # at now+x minutes > reboot > ctrl+D where x is the delay before reboot. While this works relatevly well for very simple tasks like playing with iptables this method has at least two drawbacks: It's not very reactive, ie a connectivity problem should be detected automatically if for example an automatic remote ssh command fails does not work anymore for x seconds. It can obviously not work if one need to modify some configuration files and then reboot to test the changes. Are you guys using some tool for the second point ? I would love to have something able to revert the system configuration in a previously known stable state if I can't join the server X minutes after reboot. Thanks!

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• Internet wireless connected with limited access, windows vista

  - by r0ca

  I had some malware in my computer so I did a bit of manual work to remove it including resetting TCP/IP. Now the malware is gone. I can see my home wireless network and I can get connected to it but when connected I get the Internet wireless connected with limited access message. When I go to the IE I cannot browse. When I tried to ping 192.168.1.1 I got an Error Code 1231 Unconnected Network Problem. I have deactivated my Windows firewall as I thought it could be hyperactive security. Still no luck. I have Norton but it is not active, I have also Avast and AVG installed but they are not active. Any ideas?

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• Chrome is reporting GMail has Invalid Server Certificate, how do I find out who's fiddling with my certs?

  - by chillitom

  Chrome is giving the following warning when ever I try and visit GMail or a bunch of other SSL sites. Invalid Server Certificate You attempted to reach mail.google.com, but the server presented an invalid certificate. You cannot proceed because the website operator has requested heightened security for this domain. This is the certificate the Chrome reports as invalid: -----BEGIN CERTIFICATE----- MIIDIjCCAougAwIBAgIQK59+5colpiUUIEeCdTqbuTANBgkqhkiG9w0BAQUFADBM MQswCQYDVQQGEwJaQTElMCMGA1UEChMcVGhhd3RlIENvbnN1bHRpbmcgKFB0eSkg THRkLjEWMBQGA1UEAxMNVGhhd3RlIFNHQyBDQTAeFw0xMTEwMjYwMDAwMDBaFw0x MzA5MzAyMzU5NTlaMGkxCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpDYWxpZm9ybmlh MRYwFAYDVQQHFA1Nb3VudGFpbiBWaWV3MRMwEQYDVQQKFApHb29nbGUgSW5jMRgw FgYDVQQDFA9tYWlsLmdvb2dsZS5jb20wgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJ AoGBAK85FZho5JL+T0/xu/8NLrD+Jaq9aARnJ+psQ0ynbcvIj36B7ocmJRASVDOe qj2bj46Ss0sB4/lKKcMP/ay300yXKT9pVc9wgwSvLgRudNYPFwn+niAkJOPHaJys Eb2S5LIbCfICMrtVGy0WXzASI+JMSo3C2j/huL/3OrGGvvDFAgMBAAGjgecwgeQw DAYDVR0TAQH/BAIwADA2BgNVHR8ELzAtMCugKaAnhiVodHRwOi8vY3JsLnRoYXd0 ZS5jb20vVGhhd3RlU0dDQ0EuY3JsMCgGA1UdJQQhMB8GCCsGAQUFBwMBBggrBgEF BQcDAgYJYIZIAYb4QgQBMHIGCCsGAQUFBwEBBGYwZDAiBggrBgEFBQcwAYYWaHR0 cDovL29jc3AudGhhd3RlLmNvbTA+BggrBgEFBQcwAoYyaHR0cDovL3d3dy50aGF3 dGUuY29tL3JlcG9zaXRvcnkvVGhhd3RlX1NHQ19DQS5jcnQwDQYJKoZIhvcNAQEF BQADgYEANYARzVI+hCn7wSjhIOUCj19xZVgdYnJXPOZeJWHTy60i+NiBpOf0rnzZ wW2qkw1iB5/yZ0eZNDNPPQJ09IHWOAgh6OKh+gVBnJzJ+fPIo+4NpddQVF4vfXm3 fgp8tuIsqK7+lNfNFjBxBKqeecPStiSnJavwSI4vw6e7UN0Pz7A= -----END CERTIFICATE----- I think someone or something (proxy, anti-virus, browser extension) is snooping on my SSL traffic. How can I determine who/what is doing this?

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• Loggon to Internet Hotspot from within Linux Terminal

  - by Saif Bechan

  For internet I use a local Hotspot service. I have internet when I start my browser and fill in my username and password. This stays as long as I do not shut down my PC for a while. I run some virtual machines, centos, debian, from the command line. I run these just for small test purposes, nothing special, and security is not an issue for me at all. I want to have these VM's connect directly to the hotspot if this is possible. So they each have there own IP. I have enough hotspot accounts to do so. I can do this with a bridged connection in VMware which works find with a GUI. But I run these OS's from the command line. I only need to know a way how to get the hotspot to validate my credentials. Is there a way of doing this without having a gui.

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