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• How can I open a port in OS X 10.6?

  - by Ian

  Mine is MacBook Air, so I cannot plug to the modem directly. And I do want to turn my firewall off. How can I specify to open a port, like port 56789 in Mac OS 10.6.8? I know in old Mac OS, there is a option for me to specify a custom port. But I cannot find it in OS X 10.6.8. In System Preferences / Security / Firewall, I only can allow an APPLICATION to access a new port. However, now I'm programming, using a new port. So, it seems not suitable for me. So, can I simply open a port instead of using an Application to open a port?

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• Sending email with Windows 8 Mail (Modern UI) being blocked by AVG Firewall

  - by Riaan

  I've setup my Outlook.com email address in Windows 8 Mail (Modern UI) but is unable to send and receive emails when my AVG Internet Security 2012 Business Edition's Firewall is enable. When I disable the firewall, the emails are coming through and are being send. I know that I can most probably open the ports for IMAP on the firewall, but instead I would like to permit the application. Where/how do I find the application path for Windows 8 Mail (Modern UI) to allow all network traffic? (AVG did not show its normal Allow/Disallow notification for 1st time communications) Any advice would be appreciated.

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• RDP windows key jamming

  - by VBwhatnow

  There is a known bug in RDP; if you lock the screen while connected to a computer the computer you are connected to will have its windows key jammed. There are a few work arounds that involve hammering the windows key and re-locking the screen but this isn't a bug I want to put up with anymore. Microsoft has said they wont fix this bug because it's XP specific and they are only working on security bugs now because XP is at end of life. Is there any way I can fix this or am I just going to have to find an alternative remote desktop software.

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• VBA: Parse preceding numbers from string

  - by buttonsrtoys

  I need to parse into two substrings a string that always starts with numeric text followed by alphnumeric text. The strings can vary a bit, but not too much. Below are examples of incoming format and the strings I need: "00 10 50 Information to Bidders" ==> "00 10 50", "Information to Bidders" "001050 Information to Bidders" ==> "001050", "Information to Bidders" "00 10 50 - Information to Bidders" ==> "00 10 50", "Information to Bidders" "001050 -- Information to Bidders" ==> "001050", "Information to Bidders" I was hoping it would only be a half dozen lines of VBA, but my code is turning into a loop where I'm testing every character in the string to see where the changeover from numeric-only to non-numeric, then parsing the string based on the changeover location. Not a big deal, but messier than I was hoping for. Are there VBA functions that would eliminate the need to iterate through each string character?

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• Can't get port forwarding to work on Ubuntu

  - by Znarkus

  I'm using my home server as NAT/router, which works well. But now I'm trying to forward port 3478, which I can't get to work. eth0 = public interface eth1 = private network $ cat /proc/sys/net/ipv4/conf/eth0/forwarding 1 $ cat /proc/sys/net/ipv4/conf/eth1/forwarding 1 Then to forward port 3478 to 10.0.0.7, I read somewhere that I should run iptables -t nat -A PREROUTING -p tcp -i eth0 --dport 3478 -j DNAT --to-destination 10.0.0.7:3478 iptables -A FORWARD -p tcp -d 10.0.0.7 --dport 3478 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT I also ran ufw allow 3478 But testing port 3478 with http://www.canyouseeme.org/ doesn't work. Any idea what I have done wrong?

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• Passwordless ssh on multiple machines

  - by Phil

  Hi all, I'm quite confused with all the ssh security stuff. I am trying to reconfigure a system that is currently broken for reasons unknown. Machine A is your personal computer that you use whenever you're at home. Machine B is the head node of an HPC cluster and all the other machines C are all identically configured machines which share the home directories of machine B. This is an HPC cluster if you haven't guessed. How would I configure passwordless ssh between any nodes B or C. A can only get to C through sshing into B

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• If a SQL Server Replication Distributor and Subscriber are on the same server, should a PUSH or PULL subsciption be used?

  - by userx

  Thanks in advance for any help. I'm setting up a new Microsoft SQL Server replication and I have the Distributor and Subscriber running on the same server. The Publisher is on a remote server (as it is a production database and MS recommends that for high volumes, the Distributor should be remote). I don't know much about the inner workings of PUSH vs PULL subscriptions, but my gut tells me that a PUSH subscription would be less resource intensive because (1) the Distributor is already remote, so this shouldn't negatively effect the Publisher and (2) pushing the transactions from the Distributor to the Subscriber is more efficient than the Subscriber polling the Distribution database. Does any one have any resources or insight into PUSH vs PULL which would recommend one over the other? Is there really going to be that big of a difference in performance / reliability / security?

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• how can i disable safe mode for php on web server?

  - by user1767434

  I am using wkhtmltopdf for making a pdf of a page. My code executes the shell to run a command using this wkhtmltopdf library. Everything works fine in my wamp server but when the code runs on my web-server it does not work and gives the following error: Warning: shell_exec() has been disabled for security reasons in /home/pssptech/public_html/.../cert.php on line 272 I think that the php is running on safe mode on the server that's why the shell execution is disabled. But the main problem is I am unable to find the php.ini file on my remote web-server. Can you tell me where can I find the config file so that I can disable the safe mode? Thanks in advance.

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• Users own mapped network drives disappear when I set a GPP mapped drive

  - by Kim

  All the clients use Windows 7 SP1 x64 Enterprise. The domain controllers are Windows Server 2008 R2. I have configured the GPP to map "\server\data" to first available drive letter starting with I:. The action is replace and I have set the Hide/Show this drive and Hide/Show all drives to "Show". I have set targeting to a specified security group. This works as expected and the drive is mapped to the correct users. The problem is that if the user has created their own mapped drives these mappings will disappear when the GPP mapping is applied. Only the mapped drives from the GPP is shown in Explorer. I have not found any other mention of this particular problem when I search the Internet and on TechNet there is no mention of what happens to drives already mapped.

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• What kind of website traffic can a 10mpbs connection handle?

  - by Blankman

  I need some help understanding firewalls. I played around with Amazon EC2 and it seems to provide a firewall out-of-the-box. When I say firewall, to me that means the ability to block ports from being accessed from the outside world, or to only specific security groups. I'm looking at a dedicated server hosting provider and they provide a hardware firewall for $50/month and it is limited to 10mbps. Can someone explain to me what kind of traffic this correlates to? Are these usually limited to the number of simultaneous connections also?

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• Red Hat 6.5- sysctl -w net.ipv6.conf.default.accept_redirects=0

  - by kjbradley

  I am in the process of writing a Red Hat 6.5 Kickstart disc with hardened security. I have run a program to determine where the weaknesses are in my system, and apparently there is a medium severity problem by accepting IPV6 redirects. When I implement the following line in my post script in my kickstart, I can't access any websites externally with wget, or ssh/scp in from my computer. sysctl -w net.ipv6.conf.default.accept_redirects=0 Is there a workaround to this so that the system will still be hardened but I will be able to access systems that are external?

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• how do I list Distribution Group (List) and their members inside of an OU using AD or exchange 2010

  - by wraak

  our entire domain has thousands of distribution groups, while i can use the script referenced here: How to get a list of all Distribution Lists and their Members in Exchange 2007? to pull all distribution groups and their members, it would be too hard to filter through all results. I particularilly need to pull either a. (preferred) all groups (both distribution and security) and their members inside of an OU (this particular OU contains over 100 hundred groups) or b. all groups and members matching a name starting with exampl* dsquery | dsget looks like could almost serve that purpose however when i did: dsquery group "OU=my-department,DC=blah,DC=blahblah,DC=com" -name * | dsget group -members (-expand) c:\my-department.txt it displays only the members without showing which group they belong to. The output I need should have: group name, members and potentially expanded sub-groups. i am still researching on how to get this done, seems like i can somehow make the above referenced script to search only inside of an OU, but i am not very familiar with powershell. any help would be appreciated, thank you.

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• Auto-detect proxy settings for the network

  - by user42891

  Firefox browser contains network settings under Tools--Options--Advanced--Network--Settings and there is an option to do auto detect proxy settings, how should I enable this? Currently this is manually configured and its possible for users to bypass and use the internet directly. We use a variety of browsers (firefox, IE, chrome, safari, opera) on win xp, win 2003, win vista machines. How should I enable this so that the end user cannot manipulate the settings on his browser to by pass security. I have configured a squid cache proxy server for this purpose.

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• Does Google Chrome officially work on Windows 7 64-Bit Yet?

  - by Nick Josevski

  As soon as I jumped onto one of the beta releases for Windows 7, I tried to install Google Chrome. Being on a 64-bit installation it came up with a 'non-supported OS' or some error (can't remember). Having a look around at the time I saw lots of posts/tips about just appending --in-process-plugins to the shortcut for chrome, after trying this and still not having luck, I found more posts including what seemed ones from the Chrome developers saying this was not wise and exposed a security risk. So does anyone have a well sourced answer, as to what's holding up Win 7 64-bit support in Chrome, or better yet an "official" answer to say that it is supported in Win7 x64 RTM and works well now...

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• How should oracle vbox look like in terms of Memory, CPU and Performance? [duplicate]

  - by Nicholas DiPiazza

  This question already has an answer here: Can you help me with my capacity planning? 2 answers I've got a need for a ton of VMs to simulate some realistic load testing scenarios. I've got a bunch of different host machines that differ in ram, cpu's, etc. What should my resource manager look like? Is there a standard way to know what the CPU, Memory and Disk Utilization should be given your CPUs + Memory available + Disks available? For example, I have a box: MemTotal: 50 Gb CPUs: 8 CPUs are pretty much 100% all day long. Memory is at about 60%. Swap not getting hit. Little bewildered by why the VMs, while doing the exact same test script, are showing different virtual memory consumption. Huh.

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• Sticking with Ubuntu 12.04 while heavily using PPA for newest software updates (Apache 2.4, PHP 5.5)

  - by MechaStorm

  I was wondering whether is it worthwhile to stick with Ubuntu 12.04 LTS until 14.04 comes or should I be switching to just the latest Ubuntu server version 13.10. My server needs are not enterprise heavy and previous thought to keep with LTS was simply to gain the security updates without having to upgrade the servers every couple months. But as we are moving forward with our software development, I have found that alot of the default version of software with 12.04 is way out of the date forcing me to up date via PPA or from source instead of from default apt-get. ie PHP 5.3 is on 12.04, and I'd like to get it to 5.5. Is it worthwhile to simply move to 13.10 in that situation? With the idea to move to 14.04 when it comes?

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• Error 1069 the service did not start due to a logon failure

  - by Si.

  Our CruiseControl.NET service on Win2003 Server (VMWare Virtual) was recently changed from a service account to a user account to allow for a new part of our build process to work. The new user has "Log on as a service" rights, verified by checking Local Security Settings - Local Policies - User Rights Assignment, and the user password is set to never expire. The problem I'm facing is every time the service is restarted, I get the 1069 error as described in this questions subject. I have to go into the properties of the service (log on tab) and re-enter the password, even though it hasn't changed, and the user already has the appropriate rights. Once I enter the password apply the changes, a prompt appears telling me that the user has been granted log on as a service rights. The service will then start will no problems. Not a show stopper, but a pain none-the-less. Why isn't the password persisting with the service?

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• KVM vs Hyper-V. Which hypervisor is best for windows guests?

  - by user198851

  I am currently testing openstack for windows guests (XP and 7). I have deployed openstack "all in one" on system with following specs Processor corei5. (4 physical cores and 8 Threads with HT Technology) RAM 8 GB. HD 500 GB. I have created 4 windows xp guests with 512MB RAM and 1VCPU. On each windows guest i have installed visual studio 2008 only. In nova.conf CPU Over-Commit ratio is 2 for better performance (as mentioned in openstack operation guide). Using KVM as hyerpvisor. I have observed poor performance when simultaneously using visual studio in four windows instances. How i can improve performance ? Should i use KVM or Hyper-V ? or any other suggestion ?

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• Deny IIS6 web request based on URL parameters?

  - by user21146

  I've got a legacy app running a third-party ecommerce system under IIS6. Some spammers recently discovered a bad security vulnerability in one of the store's forms, which are allowing them to send arbitrary emails from our system. Unfortunately, this store "feature" is built into the default.aspx page's code-behind and I have no way to disable it without shutting down the store. How can I filter out URL request with a given querystring parameter? ie, I want to filter out requests to: http://www.mysite.com/store/?id=SendSpam based on the "SendSpam" string.

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• Why no final dot for domain names?

  - by user41150

  I recently learned that a fully qualified domain name ends in a dot, e.g. www.microsoft.com.. Why do I almost never see this? We casually toss around www.microsoft.com, a relative domain name, without a second thought. It's not mere pedantry, because it seems there's a security issue: someone in your network could create www.microsoft.com.example.com. to hijack your requests to www.microsoft.com. Why doesn't the internet community have a tradition of using genuinely fully qualified domain names?

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• Virtualise Excel in a browser

  - by Macros

  Is it possible to give users access to a virtualised instance of Excel - I don't want to give them access to a full OS (although this will clearly be running in the background, all they can access is Excel - they don't even see any other screens)? Secondly, if it is possible, is it possible to do within a browser? Edit I am building a system which is designed to test candidates skills in Excel and for this reason needs to use the full desktop version and not a web app. I don't want to have to ensure Excel is installed on the client machine as there will be issues around differing versions and security as the workbook(s) that are used in the test use VBA extensively to customise and mark the exercises. Ideally my web app would be able to open a session to the server which then just puts the user into an instance of Excel without ever seeing a desktop. I would also need to be able to pass in command line parameters in order to define which workbook to open and also pass in a unique token to identify the user

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• Automatic Server Management

  - by Radoslav

  I try to find any kind of automatic management services. What I mean: I purchase dedicated server. Login SSH and install any kind of Daemon. Control security, tune LAMP stack, monitoring etc. from dashboard. Never touch SSH and login in to the server. Pay every month for this service. I already find few providers, but they support only EC2 cloud servers. If you can suggest me anything for dedicated machines? If not- I need to hire anyone for 5h Administrator and 715h "Box-Watcher" every month :|

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• Windows 7 system CPU bogged by windows services, no explanation

  - by Alex

  I'm looking at a laptop for a colleague which is running terribly slow. A quick look showed that the CPU was 100% used by 2-3 SVCHost processes, which off course doesn't tell much since those are just 'cover' processes with services running underneath them. So I fired up process explorer in hopes of finding a shady rogue service which was bogging the system, but to my suprise I found genuine MS Windows processes (or at least damn-good disguised ones) are bogging down the system: dnscache (DNS Client) IKEEXT (IKE and AuthIP IPSec Keyring modules) iphlpsvc (IP Helper) Seen separately, these processes might seem odd to be using a lot of CPU, but taking a step back one can conclude that all three services are quite closely related to networking. I've tried running: netsh int ip reset log.txt which has helped me save bizarre network-related problems in the past, but this didn't help Off course I though about a virus, but both MS Security Essentials as well as malwarebytes (let both run a full scan).

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• Windows file Sync

  - by Deane Venske

  So I have a big problem at the moment. Trying to find a reliable solution for syncing 2 windows IIS servers. I need to keep the web content imaged on both. Now I have been trying to use Rsync to this point, but unfortunately file permission errors are a nightmare to manage this way. I'm testing out dropbox, but the performance sucks. I'm more familiar with Linux stuff and I've used Rsync in the past but isn't there a native windows solution that will work?

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• OS Isolation: Virtualization or Dual-Boot Duplication, a General How To?

  - by Mr_CryptoPrime

  I want to isolate my windows 7 operating system and I have looked into virtualization. This should work with Linux, however, I do want to still have a way to run windows 7 securely, but without significant performance loss, thus eliminating virtualization for that. I know that you can dual boot because I currently do so with my XP/Linux system. Is there a way that I can duplicate my windows 7 system so I can select one at bootup? This way I can ensure that each OS is isolated and not worry about performance loss. However, I am having a lot of trouble finding a solid method for OS duplication?! Is this even possible or must I buy two versions of win7 and somehow install them separately? Any information regarding this would be helpful, thanks! Essentially I want, Two instances of win7 (not necessarily simultaneously running) Each are isolated from one another so that a security breach in one doesn't affect the other. There is no performance loss in either from doing so

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