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• Error message: do not have authority to access this function

  - by Ross

  Hi. I just reinstalled Windows on my computer after getting a virus. I worked with it for a while and everything worked as it should. I then used a backup of the computer that I had made a week or so earlier and copied the backup over my user folder. (That is, I took the folder named "Joe" from the backup drive and copied-replaced the whole thing over the folder named "Joe" on the new Windows install.) To do this I had to work from an Ubuntu live CD because some of the files were in use. Now the problem: After I did this copying my computer says that I have no authority. Anytime I try to access anything that is part of the operating system (Explorer, Personalize, Control Panel, etc) I get an error message that says I don't have the authority to do this. I am able to access things that aren't part of the OS: Chrome, Firefox, my accounting software, Rockbox, but nothing that is part of the OS. I only copied over the User file, so I didn't mess with the registry or anything, so I have no idea why this should be. Does anyone out in cyberspace have any idea? Thank you.

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• Why is 50.22.53.71 hitting my localhost node.js in an attempt to find a php setup

  - by laggingreflex

  I just created a new app using angular-fullstack yeoman generator, edited it a bit to my liking, and ran it with grunt on my localhost, and immediately upon starting up I get this flood of requests to paths that I haven't even defined. Is this a hacking attempt? And if so, how does the hacker (human or bot) immediately know where my server is and when it came online? Note that I haven't made anything online, it's just a localhost setup and I'm merely connected to the internet. (Although my router does allow 80 port incoming.) Whois shows that the IP address belongs to a SoftLayer Technologies. Never heard of it. Express server listening on 80, in development mode GET / [200] | 127.0.0.1 (Chrome 31.0.1650) GET /w00tw00t.at.blackhats.romanian.anti-sec:) [404] | 50.22.53.71 (Other) GET /scripts/setup.php [404] | 50.22.53.71 (Other) GET /admin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /admin/pma/scripts/setup.php [404] | 50.22.53.71 (Other) GET /admin/phpmyadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /db/scripts/setup.php [404] | 50.22.53.71 (Other) GET /dbadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /myadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /mysql/scripts/setup.php [404] | 50.22.53.71 (Other) GET /mysqladmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /typo3/phpmyadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpmyadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpmyadmin1/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpmyadmin2/scripts/setup.php [404] | 50.22.53.71 (Other) GET /pma/scripts/setup.php [404] | 50.22.53.71 (Other) GET /web/phpMyAdmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /xampp/phpmyadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /web/scripts/setup.php [404] | 50.22.53.71 (Other) GET /php-my-admin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /websql/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpmyadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin-2/scripts/setup.php [404] | 50.22.53.71 (Other) GET /php-my-admin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin-2.5.5/index.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin-2.5.5-pl1/index.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin/ [404] | 50.22.53.71 (Other) GET /phpmyadmin/ [404] | 50.22.53.71 (Other) GET /mysqladmin/ [404] | 50.22.53.71 (Other)

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• View Remote Desktop access logs on Win 2003

  - by NealWalters

  Is there a history log of each use of Remote Desktop. I'd like to view and audit IP addresses. I'm running a dedicated server hosted by a web hosting company. Had some problems recently, and trying to validate if anyone besides me actually logged on (i.e. if user/pass is compromised). Thanks, Neal Walters

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• How Do Online Virus Scanners Work?

  - by user185812

  I have seen a lot on free online virus scanners available online lately. I was considering trying one of them out, but I have a question. If I have company word documents, excel spreadsheets, etc on my computer, do these scanners just take a copy of everything on my hard drive, put it on their server, and search through them? Or do they just use virus definitions and scan through my computer without taking a copy of all my data?

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• Safari keeps asking permission to access the keychain.

  - by GameFreak

  Normally when I save a password in Safari it will get added to my login keychain without fuss (assuming that it is already unlocked). But after I set a a master password the default keychain was changed to FileVaultMaster. When I set it back to login Safari then started to always ask for permission to access the keychain. To get it back to the default behavior should I chose always allow or is there something else I should do?

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• Most secure way of connecting an intranet to an external server

  - by Eitan

  I have an internal server that hosts an asp.net intranet application. I want to keep it completely and utterly secure and private however we need to expose some information through a WCF service to another server which hosts our external websites which CAN be accessed by the public. What is the best way to pass information between the two servers with regards to an IT setup, while keeping the intranet in house server completely secure and inaccessible? I've heard VPN was the way to go but I wanted to be sure this was the safest way. Another question what would be the most secure way of passing data in the WCF service?

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• robot hammering apache2

  - by user1571418

  My apache2 log is bombarded with lines like: 108.5.114.118 - - [03/Aug/2012:15:23:28 +0200] "GET http://xchecker.net/tmp_proxy2012/http/engine.php HTTP/1.0" 404 1690 "http://xchecker.net/tmp_proxy2012/http/engine.php" "Mozilla/4.0 (compatible; MSIE 6.0; Windows 98; Win 9x 4.90)" I am puzzled by this -- why is a request for some weird xchecker.net domain ending up on my server in the first place?! The request comes every few dozens of seconds, must be a robot. Any ideas what it is? Btw that URL is valid -- apparently it contains some test page...

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• Is it possible to detect nearby Wi-Fi enabled devices, not necessarily on the same network? [closed]

  - by Sky

  first question on StackExchange ever. I hope I got the right board. I'm trying to create a device (either from a standard AP or some other unconventional means) that will be able to detect nearby Wi-Fi enabled devices. For example, if a cellular phone (iPhone for instance) would be carried into the secured area, its MAC address will be logged. A cellular phone is a good example because it's the most common threat that should be detected. Some important points: The detection can be either active or passive, doesn't matter. The detected device might be connected to a different network, or might not be connected to anything at all. I assume most cellular phones are actively probing when not connected, but I'm not sure. It is important to not only identify the breach, but also to identify the device (MAC address). Conventional hardware is only optional. Distance of detection is at least 6 meters (20 feet). Handling one device at a time is good. Speed of detection is important, under 5 seconds is ideal. So my question is, is this even possible? If so, what can I use in order to make this a reality? Thank you for reading!

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• Setting up fail2ban to ban failed phpMyAdmin login attempts

  - by Michael Robinson

  We've been using fail2ban to block failed ssh attempts. I would like to setup the same thing for phpMyAdmin as well. As phpMyAdmin doesn't log authentication attempts to a file (that I know of), I'm unsure of how best to go about this. Does a plugin / config exist that makes phpMyAdmin log authentication attempts to a file? Or is there some other place I should look for such an activity log? Ideally I will be able to find a solution that involved modifying fail2ban config only, as I have to configure fail2ban with the same options on multiple servers, and would prefer not to also modify the various phpMyAdmin installations on said servers.

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• Determining who is running with administrator rights?

  - by Alex C.

  I work at a small non-profit organization with about 55 desktop PCs running Windows XP Pro. The domain controller is running Windows Server 2003. I have a two-part question (note that I'm a bit of a newb when it comes to network administration). Part 1: Is there some simple way that I can determine which accounts are logged in with administrator rights? Part 2: Is there a way that I can remove administrator rights from users without sitting down at each individual machine? Thanks for considering my questions.

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• Iptables - Redirect outbound traffic on a port to inbound traffic on 127.0.0.1

  - by GoldenNewby

  I will be awarding a +100 bounty to the correct answer once it is available in 48 hours Is there a way to redirect traffic set to go out of the server to another IP, back to the server on localhost (preferably as if it was coming from the original destination)? I'd basically like to be able to set up my own software that listens on say, port 80, and receives traffic that was sent to say, 1.2.3.4. So as an example with some code. Here would be the server: my $server = IO::Socket::INET->new( LocalAddr => '127.0.0.1', LocalPort => '80', Listen => 128, ); And that would receive traffic from the following client: my $client = IO::Socket::INET->new( PeerAddr => 'google.com', PeerPort => '80', ) So rather than having the client be connecting to google.com, it would be connecting to the server I have listening on localhost for that same server. My intention is to use this to catch malware connecting to remote hosts. I don't specifically need the traffic to be redirected to 127.0.0.1, but it needs to be redirected to an IP the same machine can listen to. Edit: I've tried the following, and it doesn't work-- echo 1 > /proc/sys/net/ipv4/ip_forward iptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT --to-destination 127.0.0.1:80 iptables -t nat -A POSTROUTING -j MASQUERADE

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• Easiest way to send encrypted email?

  - by johnnyb10

  To comply with Massachusetts's new personal information protection law, my company needs to (among other things) ensure that anytime personal information is sent via email, it's encrypted. What is the easiest way to do this? Basically, I'm looking for something that will require the least amount of effort on the part of the recipient. If at all possible, I really want to avoid them having to download a program or go through any steps to generate a key pair, etc. So command-line GPG-type stuff is not an option. We use Exchange Server and Outlook 2007 as our email system. Is there a program that we can use to easily encrypt an email and then fax or call the recipient with a key? (Or maybe our email can include a link to our website containing our public key, that the recipient can download to decrypt the mail?) We won't have to send many of these encrypted emails, but the people who will be sending them will not be particularly technical, so I want it to be as easy as possible. Any recs for good programs would be great. Thanks.

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• Better way to stop/start Webmin and SSH

  - by Jake

  Hi, it would be a good idea to not have webmin running all the time... just start it via ssh when I need it... so, I just stop webmin,and leaving SSH always running... when I need to access webmin, I start it through SSH. but there are lots of people from many country trying to bruteforce my SSH. I can reduce bruteforce using iptables. but because Im feeling still not safe (about 3 months ago), so I stop SSH and leaving webmin always running through custom port. I just start SSH through webmin when I need. and the result, no more bruteforce on SSH, and no bruteforce on webmin (maybe because the attacker dont know my webmin custom port) but I think this is still not really safe. and I cannot restrict access to some IP because I use random IP. If I stop both SSH and webmin, I will lost access to my server. Anyone know the better way dealing with this?

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• (200 ok) ACCEPTED - Is this a hacking attempt?

  - by Byran

  I assume this is some type of hacking attempt. I've try to Google it but all I get are sites that look like they have been exploited already. I'm seeing requests to one of my pages that looks like this. /listMessages.asp?page=8&catid=5+%28200+ok%29+ACCEPTED The '(200 ok) ACCEPTED' is what is odd. But it does not appear to do anything. I'm running on IIS 5 and ASP 3.0. Is this "hack" meant for some other type of web server?

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• How can I prevent Virtualmin from storing passwords in cleartext?

  - by Josh

  I am really surprised at this behavior. In Virtualmin, I can see the password for any SSH user by clicking the "(Show..)" link next to the "Password ( ) Leave unchanged" option in a variety of locations. I have found that the passwords for all users including users with SSH access are stored in cleartext files in /etc/webmin/... This seems like an unnecessary risk! How can I prevent Virtualmin from storing passwords in this manner?

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• Windows 7 : Any way to disable "show caracter" in WIFI network properties?!

  - by Fox

  Hi everyone, Here's my issue. I'm working in a school as IT Tech and I'm currently planning to roll out Windows 7 on students laptop. The issue is : When you go to the properties of a WIFI network, you have the fields to input the WIFI key, WPA2 key here in my case, and you also have a checkbox that allow you to "unmask" the caracters of the wifi key. This is actually the problem. Anyone who can access the WIFI network properties, will be able to see the WIFI key, which is really an issue in a school envrironnement where student are all eager to get the key for their precious IPod Touch, what I don't want to happen for obvious reasons... So, is there a way to disable that checkbox or else, make the field cleared out when the checkbox is checked, just like it was on Windows XP or Vista? Thanks all for your answer.

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• Penetration testing - common examples?

  - by Mirek

  Hi, I was charged to do some basic penetration testing on our system. I tried to find some favoured practices but I was not successful. I guess SYN attack is retired (no NT here). Could anyone advice some basic steps of what to test in order to proceed at least very basic penetration test? Thanks

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• Detecting man-in-the-middle attacks?

  - by Ilari Kajaste

  There seem to be many possible ways to create man-in-the-middle attacks on public access points, by stealing the access point's local IP address with ARP spoofing. The possible attacks range from forging password request fields, to changing HTTPS connections to HTTP, and even the recently discovered possibilit of injecting malicious headers in the beginning of secure TLS connections. However, it seems to be claimed that these attacks are not very common. It would be interesting to see for myself. What ways are there to detect if such an attack is being attempted by someone on the network? I guess getting served a plain HTTP login page would be an obvious clue, and of course you could run Wireshark and keep reading all the interesting ARP traffic... But an automated solution would be a tiny bit more handy. Something that analyzes stuff on the background and alerts if an attack is detected on the network. It would be interesting to see for myself if these attack are actually going on somewhere.

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• Configuring port forwarding for SSH - no response outside LAN [migrated]

  - by WinnieNicklaus

  I recently moved, and at the same time purchased a new router (Linksys E1200). Prior to the move, I had my old router set up to forward a port for SSH to servers on my LAN, and I was using DynDNS to manage the external IP address. Everything worked great. I moved and set up the new router (unfortunately, the old one is busted so I can't try things out with it), updated the DynDNS address, and attempted to restore my port forwarding settings. No joy. SSH connections time out, and pings go unanswered. But here's the weird part (i.e., key to the whole thing?): I can ping and SSH just fine from within this LAN. I'm not talking about the local 192.168.1.* addresses. I can actually SSH from a computer on my LAN to the DynDNS external address. It's only when the client is outside the LAN that connections are dropped. This surely suggests a particular point of failure, but I don't know enough to figure out what it is. I can't figure out why it would make a difference where the connections originate, unless there's a filter for "trusted" IP addresses, which is perhaps just restricted to my own. No settings have been touched on the servers, and I can't find any settings suggesting this on the router admin interface. I disabled the router's SPI firewall and "Filter anonymous traffic" setting to no avail. Has anyone heard of this behavior, and what can I do to get past it?

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• Configure Windows firewall to prevent an application from listening on a specific port

  - by U-D13

  The issue: there are many applications struggling to listen on port 80 (Skype, Teamviewer et al.), and to many of them that even is not essential (in the sense that you can have a httpd running and blocking the http port, and the other application won't even squeak about being unable to open the port). What makes things worse, some of the apps are... Well, I suppose, that it's okay that the mentally impaired are being integrated in the society by giving them a job to do, but... Programming requires some intellectual effort, in my humble opinion... What I mean is that there is no way to configure the app not to use specific ports (that's what you get for using proprietary software) - you can either add it to windows firewall exceptions (and succumb to undesired port opening behavior) or not (and risk losing most - if not all - of the functionality). Technically, it is not impossible for the firewall to deny an application opening an incoming port even if the application is in the exception list. And if this functionality is built into the Windows firewall somewhere, there should be a way to activate it. So, what I want to know is: whether there exists such an option, and if it does how to activate it.

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• How to wipe an IPod with DBAN

  - by Matt Powers

  I'm looking to use a utility such as Darik's Boot And Nuke (www.dban.org) to wipe my iPod (classic fifth generation) so I can sell it on Ebay (without having to worry about my data being recovered.) Any suggestions on how to do this?

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• phpmyadmin login should not expire on ubuntu 10.04

  - by mit

  On ubuntu 10.04 the phpmyadmin config is a little bit scattered. I want to set the loginexpiration time to zero, should never expire, this is a secured setup behind a firewall. I think it is 3600 by default but cannot find the setting. Where is it? Edit: I actually changed it in /etc/phpmyadmin/conf.inc.php which seems the recommended place for ubuntu. The other files mentioned below might be overwritten on updates.

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• Functional implications of differences in SSL and TLS

  - by Randell

  I know that TLS is essentially a newer version of SSL, and that it generally supports transitioning a connection from unsecured to secured (commonly through a STARTTLS command). What I don't understand is why TLS is important to an IT Professional, and why given the choice I would pick one over the other. Is TLS really just a newer version, and if so is it a compatible protocol? As an IT Professional: When do I use which? When do I not use which?

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• SFTP File Restrictions.

  - by The Rook

  Is it possible to use SFTP on Linux and restrict a user account to ONE directory such that no other directory listing can be obtained? Yes, I must use SFTP, FTP is only used by people that love getting hacked. For instance I want someone to modify files in /var/www/code/ but I don't want them to be able modify anything else. I don't even want them to see the contents /tmp/. (I will accept a "quick and dirty" solution, as long as it is secure.)

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• Change the number of consecutive frequent ssh login before temporary blocking the user login

  - by Kenneth

  my server currently would temporarily refuse a user to login for certain amount of time (maybe ~20min) if the user consecutively frequent ssh login for 3 times. Can I change this behaviour (say relaxed the definition of frequent maybe from 'within 5 sec' to 'within 10 sec'; or increase the # of consecutive login from 3 to 5)? Thanks. Added: Ah.. now I think the problem was not with the ssh. I just tried on another newly installed server. consecutive successful login won't block the user. I have no sudo permission on the server I mentioned above. Now I suspect this behaviour may cause by the firewall in the system. Thanks everyone's comments. ADDED 2: Ah... after some searches. I think the server is using /sbin/iptables to do it as I can see the iptables program is there even though I don't have permission to list the rules. Thanks everyone, special thank to jaume and Mark!

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