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• Remote Desktop Services create LAN and WAN user groups

  - by PHLiGHT

  I'm setting up one server with the gateway, server host and web access roles on it. I know that isn't ideal but I don't expect to have many simulatenous users. I want users to access remote desktop web access and connect to the server host via the gateway as outlined here which avoids opening 3389 to the internet. Users will be connecting from the LAN and the WAN. What I'm looking to do is to allow some users LAN access but not WAN access and added plus would be if security settings (such as no clipboard) would be different when accessing via the WAN. Is this possible? It seems all users can logon to remote desktop web access by default. They can't run the remoteapps once logged in though without the proper permissions. Can I prevent them from even logging into remote web access? Since they renamed it from terminal services to remote desktop services it has made my Googling a bit harder. Thanks!

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• WinXP on VPC - Unable to change the way users log on or off

  - by kamleshrao

  On my Win7 computer, I have setup a new Win-XP VPC. In the VPC window, when I click Ctrl+Alt+Del, it shows me Windows Task Manager. As per MS KB [ http://support.microsoft.com/kb/281980 ], we can change this behavior to show the regular Windows Security window. But while making this change, I am getting the following error: User Accounts Fast User Switching cannot be turned off from a remote connection to this computer. Log on to the computer locally to turn off Fast User Switching. OK Is there any way I can fix this setting?

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• Will I have internet connection issues next day, if I unplug router at night?

  - by headskracher77

  I did this regularly a few years ago and used to feel like I was 'being punished' by the Interent svc provider for disabling access to my computer, because trying to re-connect the next day became a constant pain. I have the same linksys router, a comcast modem, and hi-speed broadband through their LAN. Question: who or what is at fault for lousy internet connections, slow connections, or no connections: (everybody's tech dept. blames everybody else) The router? 10 year olds, maybe obsolete? The modem? came with the service plan - can connect three devices on a sharedconnection. The ISP: I read they not only even control and completely regulate bandwidth usage, but they also ration it!! (true?) So can I safely 'pull the plug' each night for security or not? thnx

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• Get OS information with WMI from Small Business Server 2011 for Windows 2008 virtual machine

  - by Drew

  In my organization, the main server is Windows Small Business 2011. It uses a WMI service (I think) to get the Security and Update status of computers on the network. I have a Server 2008 virtual machine in VirtualBox with bridged network adapter. The SBS will not correctly get the status of, nor the operating system of, the Server 2008 VM. What settings do I have wrong / can I actually do this for a virtual machine in the first place? -- I do not know what further information might be needed, just ask and I will post.

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• Cannot SSH into Amazon EC2 instance

  - by edelwater

  I read: Cannot connect to ec2 instance http://stackoverflow.com/questions/5635640/cannot-ssh-into-amazon-ec2-instance Amazon EC2 instance ssh problems etc... But could not fix it: suddenly (after a year of service, no changes on my winscp settings) it gives me "network error connection timed out" (im using ec2-user) (also from the amazon console). Log FILE: http://pastebin.com/vNq6YQvN All Sites that run on it run fine port 22 is allowed (never changed it) (security group) using the correct ec2-user and domain via my winscp / putty i can connect to other hosting (via ssh) update: SOLVED. I spend 2 days without looking at my own IP address .... (since it did not change the past 3 years....). Your comments made the spark in my brain. thank you so much. (and only now i find dozens of discussions from angry users that the static addresses from my provider are changed to dynamic ones: http://gathering.tweakers.net/forum/list_messages/1501005/12 ...)

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• Lost Root and other user passwords

  - by Webnet

  This isn't a huge deal, because there's very little on the server (literally a file or two) that we actually need off of it. But we disabled root logins as a security measure and can't remember any of our other user passwords. I'm assuming that there's nothing we can do at this point to get into the server? I'm sitting next to the box... Update Oops... actually, I need to export an SVN off of this server. So yeah, there's stuff I need.

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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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• SSL Certificate for local web server

  - by Firefly

  Is it at all possible to create a self-signed certificate for use on multiple machines on a local network which would stop the browser complaining it is not a trusted site? We have a product which is basically a computer running lighttpd to serve a web interface for configuring the computer (sort of how a router has a web interface). There can also be many of these machines running on the same network with dynamic IP's. What I basically want to do is enable SSL for extra security but I don't want people who are on the local network to be given a browser warning about the certificate not being trusted. Is this at all possible?

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• lamp server permissions on development server

  - by user101289

  I run a LAMP server on a ubuntu laptop I use only for development. I am not greatly concerned with security, since the server is never accessible outside the local network, and it's turned off when I'm not using it. My question is what is the simplest and 'best' way to set permissions/users/groups so that when my myself user creates, edits or writes files in the webroot, I won't need to go through and CHMOD / CHOWN everything back to the www-data user? Should I add myself to the www-data group? Or chown the webroot to www-data:myself? Or is there a best practice for this situation so I don't have to keep re-setting the ownership of these files? Thanks

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• how to start with unmanaged vps?

  - by GaVrA

  Hello! I have a managed VPS, so whatever i need i can just ask my support, and they will do it for me. Now i plan to migrate to unmanaged VPS, so i need some guides, tips on how and where to start learning. I will have more specific questions once i start using it, but now i just need some general answers about this topic. Thanks. Update: Ok, i have decided to go for unmanaged VPS with cPanel. OS is CentOS-5. I contacted support only for some small(i think) things like creating new account in whm, some database importing, installing new software(rare)... What i will be using is apache, php, mysql. I think i will be able to cope with upgrading to new versions, so the thing that interests me the most is security i guess.

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• xinet vs iptables for port forwarding performance

  - by jamie.mccrindle

  I have a requirement to run a Java based web server on port 80. The options are: Web proxy (apache, nginx etc.) xinet iptables setuid The baseline would be running the app using setuid but I'd prefer not to for security reasons. Apache is too slow and nginx doesn't support keep-alives so new connections are made for every proxied request. xinet is easy to set up but creates a new process for every request which I've seen cause problems in a high performance environment. The last option is port forwarding with iptables but I have no experience of how fast it is. Of course, the ideal solution would be to do this on a dedicated hardware firewall / load balancer but that's not an option at present.

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• What kind of SSL certificate do I need?

  - by Christoffer

  Hi, I want to install HTTPS on my server and I wonder what kind of certificate I will need and where I can buy it. The site is a web application that demands high security by it's users since they store sensitive business data. I am also integrating a third party payment gateway into the register process of the site and need a secure way to send credit card data one way. I do not intend to store this data in our own database. So, what do I need? And also, how do I install it on Ubuntu Server 9.10 / Apache2 ? Cheers! Christoffer

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• Can't find a wireless access point's IP address after changing router IP/LAN settings

  - by flagg19

  I have a modem/router, Netgear DG834, and a wireless access point (AP), Netgear WG602. The AP is directly connected to the router. My old working configuration was: Router IP address : 192.168.0.1 Access point IP address: 192.168.0.10 My new configuration is: Router IP address : 192.168.1.1 Access point IP address: ???.???.???.??? I changed my router's IP address/LAN settings to set up a VPN with another Netgear router that had the same LAN configuration. The wireless network is still up and perfectly working, but I can't find the AP's IP address. I've tried broadcast ping but the AP won't respond. I looked at the router "attached devices", but it's not there. I've played around with Nmap and arp request but the AP is totally invisible. I can fix it by resetting it to factory settings, but I'm very interested in learning more about this problem. I'm also interested in network security and this fact of having an invisible AP well, it's something I'd like to understand.

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• Error When Trying to Exchange Encrypted Emails with Sender Outside Domain

  - by LucidLuniz

  I have an end user who is trying to exchange encrypted messages with a person outside of our company domain. When receiving emails from the user they receive a message that says: Signed By: (There were errors displaying the signers of this message, click on the signature icon for more details.) However, when you click on the signature icon it says: The digital signature on this message is Valid and Trusted. Then when you look at the "Message Security Properties" it shows two layers, each with a green checkmark beside them. The layers are presented as below: Subject: Digital Signature Layer It also has: Description: OK: Signed message The end result with all of this is that when the user on my side tries to send this user an encrypted message it says: Microsoft Outlook had problems encrypting this message because the following recipients had missing or invalid certificates, or conflicting or unsupported encryption capabilities: Continue will encrypt and send the message but the listed recipients may not be able to read it. However, the only options you are actually given is "Send Unencrypted" and "CanceL" (Continue is grayed out). If anybody can assist I would greatly appreciate it!

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• problem with MySQL installation : template configuration file cannot be found

  - by user35389

  Trying to install MySQL onto the Windows XP machine. While going through the installation steps (in the "MySQL Server Instance Config. Wizard"), I get to a point where it the window reads: MySQL Server Instance Configuration (bold header) Choose the configuration for the server instance. Ready to execute... o Prepare configuration o Write configuration file o Start service o Apply security settings (this line is greyed out) Please press [Execute] to start the configuration. [ Back ] [ Execute ] [ Cancel ] So I press execute, and then a red X appears in the second step: Write configuration file and at the bottom, where it originally said: Please press [Execute] to start the configuration. It now says: The template configuration file cannot be found at C:\Program Files\MySQL\MySQL Server 5.0\bin\my-template.cnf I'm unsure what it means, but I canceled the config wizard and looked in the directory that had been created (C:\Program Files\MySQL\MySQL Server 5.0). There are some configuration settings files, and there are 4 folders: bin data Docs share

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• MD5 and SHA1 checksum uses for downloading

  - by Zac

  I notice that when downloading a lot of open source tools (Eclipse, etc.) there are links for MD5 and SHA1 checksums, and didn't know what these were or what their purpose was. I know these are hashing algorithms, and I do understand hashing, so my only guess is that these are used for hashing some component of the download targets, and to compare them with "official" hash strings stored server-side. Perhaps that way it can be determined whether or not the targets have been modified from their correct version (for security and other purposes). Am I close or completely wrong, and if wrong, what are they?!?! Thanks!

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• CentOS - Yum doesn't update anymore?

  - by Xanathos

  I've been trying to use yum now, but for some reason, not even the search work anymore. I even tried putting packages I already downloaded in the search criteria and is the same. [root@AMDFX03 Downloads]# yum search glibc Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile epel/metalink | 22 kB 00:00 * base: centos.secrel.com.br * epel: archive.linux.duke.edu * extras: centos.secrel.com.br * rpmforge: apt.sw.be * updates: centos.secrel.com.br adobe-linux-x86_64/primary | 1.2 kB 00:00 http://linuxdownload.adobe.com/linux/x86_64/repodata/primary.xml.gz: [Errno -1] Metadata file does not match checksum Trying other mirror. Error: failure: repodata/primary.xml.gz from adobe-linux-x86_64: [Errno 256] No more mirrors to try. This error always appear no matter what I do. Please, can you tell me how to fix this, or at least how to reset yum's configuration?

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• Why does OS X automatically logout my user?

  - by MBA_fv

  I have a new MacBook Air set up with filevault. In the Security preference pane I have "Require password 1 hour after sleep or screen saver begins" enabled, but the "Logout after 60 minutes of inactivity" is disabled. When I leave the computer on overnight I manually lock the screen (from the Keychain status menu bar, which I enabled via the Keychain Access preferences). Alas, in the morning I find that instead of a locked screen I see the login window, after my user was logged out with all applications terminated... (e.g. Firefox thinks it previously crashed when I launch it). This type of behavior only started after I enabled Filevault. Why is this happening? How do I prevent such auto-logout?

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• Have to reset wireless frequently on iPad / Macs connected to Cisco WRV200

  - by retailevolved

  I have a Cisco WRV200 set up in our small office. The wireless signal works great for PCs, but I have found that Macs and iPads have to frequently reset the connection. It will be working for about 10 minutes, then stop. To fix it, I just turn off Airport and turn it on again. On an iPad, I have to go into settings, shut the wireless off, and then turn it on again. The router is broadcasting mixed B/G on channel 6. Security is WPA-PSK2. Anybody out there had similar issues with their router? How can I fix it?

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• Copy large files to multiple machines on a LAN

  - by Jonathan Callen

  I have a few large files that I need to copy from one Linux machine to about 20 other Linux machines, all on the same LAN as quickly as is feasible. What tools/methods would be best for copying these files, noting that this is not going to be a one-time copy. These machines will never be connected to the Internet, and security is not an issue. Update: The reason for my asking this is because (as I understand it) we are currently using scp in serial to copy the files to each of the machines and I have been informed that this is "too slow" and a faster alternative is being sought. According to what I have been told, attempting to parallelize the scp calls simply slows it down further due to hard drive seeks.

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• Ubuntu based VPN server behind NAT router?

  - by maartenn88

  I have a small intranet- and file-server inside our company, which can only be reached from inside our own network. I'd like to be able to reach the intranet and files on the server from outside the network, however I don't really like the idea of completely opening security by forwarding the ports on our NAT-router, so I'd prefer to enable a VPN possibility for this. So I have a router, which is the DHCP server and has NAT function, and I have an Ubuntu Server with the files and intranet on it. How do I configure these two so that I can make a VPN connection with my network in order to reach the server? thanks in advance for any answer!

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• Remote Access Without Explicit Permission: Convenience or Liability?

  - by routeNpingme

  For outsourced professional IT remote support, one habit most new technicians get into is the "instead of getting the user to start up remote support each time, I'll go ahead and install LogMeIn / GoToMyPC / Remote Desktop / whatever so that if they call again, I can just jump on and help them". This of course opens up a potential liability because a client PC on a network that we don't own is being accessed without a user explicitly providing permission by clicking a "Yes, allow technician to control my PC" option. I realize the rules totally change when you're an IT admin over a network that you "own", but this is outsourced IT support. Just curious what others' policies are. Is this an acceptable practice for convenience and I'm turning into one of those "security is more important than anything" people, or is this really a liability?

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• Windows 2003-R2-Server: Process "System" takes large chunks of CPU time

  - by Dabu

  I have a domain controller running 2003 R2. The server behaves very well when restarted daily, however, each day it is not restarted, there's a process called "System" that takes enourmous chunks of CPU time (up to 95%). The server supports AD, WINS, DNS, has Kaspersky Endpoint Security running, and manages backups via Arcserve 15. When I tried so far: Process Explorer (ex-Sysinternals) shows that the "System" process has no sub-processes. In the "Threads" tab of the detailled view I can see that 90% of the CPU time is used up by "ntkrnlpa.exe+0x803c0". The "Interrupts" process is running at 3-5% of CPU time, I'm not sure if this accounts for the amount of CPU time that System takes.

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• Sync files between two users on Windows-7 Enterprise

  - by Zachary

  I'm running Windows-7 enterprise on a dell Laptop, and I'd like to sync the entire user directory structure between two users. Background: I am an existing user on the computer, and soon I'll be sharing the computer with an employee. I want everything from my account to overwrite the other, while anything he does is mirrored on mine. I'm not worried about security because nothing vital is on the computer. Both accounts are administrators, and I have already tried to use hard links to accomplish this. However the prompt leaves me with "Access Denied". Is what I'm trying to do possible, and if so what steps must be done to accomplish it?

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• Access Denied on LAN IIS Access via Integrated Authentication

  - by Pharao2k

  I have an IIS 7.5 (Win2k8R2) Webserver, which publishes an UNC Share (on a Fileserver) with restricted access. The AppPool Identity is a Domain User-Account with read access to mentioned UNC path. Authentication modes are set to Anonymous and Integration Authentication. When I access the path via localhost from the Webserver itself, it works, but if I try the Hostname or IP from either the Webserver or a Client, I get three authentication prompts (does not accept my credentials) and a 401.3 Unauthorized error message (but it states that I am logged in as my normal credentials which definitely have access rights to the UNC path and its files). Security Zone is set to Local Intranet. Sysiniternals Process Monitor lists CreateFile operations on the UNC path (and other existing files in it) with Access Denied and Impersonating on the correct credentials. I don't understand why it is not working, it seems to use the correct credentials on every step on the way but fails with is operations.

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