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• WIFI connection stopped working on Windows - how to troubleshoot

  - by Michiel de Mare

  Friends and family often come to me with this problem, and while I usually manage to fix their problems eventually, it often take me several hours. I'm sure there are many of us in the same position. Also, friends rarely seem to know which provider they're using, or what the password is of their WIFI-connection or ADSL-router. I'd like to gather that information myself. I'd like to have a checklist to diagnose and fix the problem, and a set of utilities on an usb-stick to help me. Where to start?

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• Join domain in windows 7 [on hold]

  - by Hassan Ali Khan

  I have created a domain on server machine and when i am trying to join a domain through another machine of windows 7 through the following steps: Goto MY Computer Properties - Change settings - ComputerName - click on change button - click on radio button "Domain" and enter domain name. After that when i click on OK button and enter the username and password credentials. It show me the following error: An attempt to resolve the DNS name of a domain controller in the domain being joined has failed. Please verify this client is configured to reach a DNS server that can resolve DNS names in the target domain

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• Double VPN Network Authentication

  - by Pyromanci

  I have a project I'm working on and looking for some info. Right now I have a VPN network using Cisco Pix 501's for the vpn clients and a Cisco VPN Concentrator 3000 for the VPN Server. Since the Pix is constantly connected to the vpn, I want to add a extra level of authentication. Meaning when the user on the other end goes to access anything on the VPN they are asked for a username password before the connection is established. I've never done this sort of structure before. So I'm not even sure where to really being or even if my current hardware can do something like this, or if i need to through in some sort of radius/LDAP/Active Directory type server into the mix.

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• Ubuntu 9.10 X Stuck in restart loop - I think...

  - by widgisoft

  Trying out Ubuntu, installation went fine - upgraded to the proprietary nVidia drivers but on restart I get a login prompt and the screen is flashing really fast almost as if Xserver is trying to start and failing, I can type when the screen isn't in a "flash" as it were and it's so fast and random it's hard to even type a login name without it missing some characters - this makes typing a password (i.e. not being able to see which characters made it or not) very hard. I can log back into the live cd and alter my settings - but I can't even find out how to stop X stop starting on boot; Looks like they've moved everything around :-p I'd like to: Stop X from crashing and going insane (if it is actually Xserver) Know how to stop X from starting on bootup, Looks like interactive boot is also off by default now Update: A temporary work around seems to be enabling ssh and just connecting to the box over the network - ssh seems to work fine :-p Cheers, Chris

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• Manually accessing GMail via IMAP

  - by Jeff Mc

  I'm trying to connect to gmail imap, but I am unable to execute any commands after login. I'm running openssl s_client -connect imap.gmail.com:993 to connect then, * OK Gimap ready for requests from 128.146.221.118 42if6514983iwn.40 . CAPABILITY * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA XLIST CHILDREN XYZZY SASL-IR AUTH=XOAUTH . OK Thats all she wrote! 42if6514983iwn.40 . LOGIN {email removed} {password removed} * CAPABILITY IMAP4rev1 UNSELECT LITERAL+ IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE . OK {email removed} authenticated (Success) . CAPABILITY at which point it simply hangs with the connection open. I'm guessing gmail pushes you off to a node in a cluster after it authenticate me?

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• Issue with percona-xtrabackup-2.0.0 hotbackup on MyIsam tables

  - by arn

  I am trying to implement hot backup for MyIsam tables with "percona-xtrabackup-2.0.0" and getting the following error? As the all tables are MyIsam I doubt am I using the correct package ? Backup : ./innobackupex --user="root" --password=<pass> --defaults-file="<path>/my.cnf" --ibbackup="<path>/percona-xtrabackup-2.0.0/bin/xtrabackup" <path>/backup/ innobackupex: fatal error: no 'mysqld' group in MySQL options innobackupex: fatal error: OR no 'datadir' option in group 'mysqld' in MySQL options apply-log : ./innobackupex-1.5.1 --apply-log --defaults-file=<path>/backup/2012-06-02_09-59-30/backup-my.cnf --ibbackup=<path>/percona-xtrabackup-2.0.0/bin/xtrabackup <path>/backup/2012-06-02_09-59-30/

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• How to setup certificate authentication for MS SQL server 2008 R2 ?

  - by Stephane

  Hello, I have to connect an (ADO) application running on a standalone Windows 2003 R2 server to a SQL 2008 R2 database that is a member of the domain. I have setup an SQL authentication account for this and hard-coded the password into the connection string but I wonder if it wouldn't be possible to use certificate-based authentication for this instead. I haven't been able to find any documentation regarding this apparently new functionality of SQL 2008 R2 anywhere. Could someone kindly point me at some good documentation ? Or at least a description of the functionality and whether it could be used in my case or not ? Thank you in advance

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• "Recipient address rejected" when sending an email to an external address with sendgrid

  - by WJB

  In postfix, I'm using relay_host to send an email to an external address using sendgrid, but I get an error about local ricipient table when sending an email from my PHP code. This is my main.cf in /postfix/ ## -- Sendgrid smtp_sasl_auth_enable = yes smtp_sasl_password_maps = static:username:password smtp_sasl_security_options = noanonymous smtp_tls_security_level = may header_size_limit = 4096000 relayhost = [smtp.sendgrid.net]:587 This is the error message from the log: postfix/smtpd[53598]: [ID 197553 mail.info] NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 550 5.1.1 Recipient address rejected: User unknown in local recipient table; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost.localdomain> One interesting thing is when I use "sendmail [email protected]" from the command line, the email is delivered successfully using SendGrid. I think it's because this uses postfix/smtp instead of postfix/smtpD the log for this says, postfix/smtp[18670]: [ID 197553 mail.info] AAF7313A7E: to=, relay=smtp.sendgrid.net[50.97.69.148]:587, delay=4.1, delays=3.5/0.02/0.44/0.18, dsn=2.0.0, status=sent (250 Delivery in progress) Thank you

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• sudoer scheme for a web developer that retains future control of a server?

  - by Tchalvak

  Background I have a server that I'm looking to set up, and provide access to another web developer. I don't want to put many constraints on him, though I wouldn't mind isolating the site that he'll be developing from others on the server that I will develop. The problem Mainly what I want is to make sure that I retain control over the server in the future. I want to reserve the ability to create/promote/demote and other administrative functions that don't deal with web software. If I make him an admin, he can sudo su - and become root and remove root control from me, for example. What is a good setup for the sudoers file so that he can do things like: *install software (through apt-get) restart apache access mysql configure mysql/apache reboot edit web development configuration type files in /etc * And can't do things like: take away other admin permissions change the root password have control over other security/administrative functions Example sudoer files that accomplish something like that could be useful, I'm sure that people have needed to do this before.

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• Where is the encfs volume key stored?

  - by Waldorf

  I am trying to use encfs in reverse mode. I understand that the passphase is used to encrypt a key which is then stored encrypted into the encfs6.xml file. What I do not understand is the following. Create en encrypted virtual fs of a folder by using passphrase A unmount this folder. Delete all contents including the encfs6.xml file If you then try to do the same with another passphrse I would expect that a new encfs6.xml would be created. However I get the following error message: "Error decoding volume key, password incorrect" So I wonder, what volume key is incorrect, I thought it was in the encfs6.xml file ?

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• Persistent network share connection not working with runas

  - by binarycoder

  If I use runas /user:DOMAIN\user cmd.exe (using XP), previously mapped persistent network drives are considered unavailable. net use shows: Status Local Remote Network ------------------------------------------------------------------------------- Unavailable H: \\SERVER\SHARE Microsoft Windows Network dir H: fails with "The system cannot find the path specified.". The connection is easily revived with `NET USE H: \SERVER\SHARE': not asked for a password when I do this. What is going on? Can I make Windows safely revive this drive automatically when it is first accessed.

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• Setting up DKIM for multiple domains on same host

  - by modulaaron

  I have DKIM set up for one domain and it works properly. I am trying, though, to set it up for another domain name on the same machine. In short, I am sending registration and password recovery emails from one domain and everything else from the other domain. Both domains map to the same host. Setting up domainkeys in this manner was no problem - adding another "DAEMON_OPTS=" line in /etc/default/dk-filter was the solution. This is not the case for DKIM, though, since it stores this information in a configuration file (/etc/dkim-filter.conf) that is formatted in a completely different manner. Any help would be most appreciated. Thanks.

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• send outgoing email via postfix from mail client

  - by Ey Jay

  I have installed postfix on my ubuntu that is hosted on digitalocean. What I want to do is. With my smtp server setup, I want to use it to send mail from my email client. I don't need to receive, I just need to send. I can telnet example.com 25 successfully, I received the email in my inbox, but when I tried using in a email client. smtp: example.com:25 user: smtp1user password: smtp1userpassword I get an error that says "Server doesn't respond. Try changing the port." I dont know how to proceed.

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• "Outlook must be online or connected to complete this action" windows XP, outlook 2007, connect to exchange using HTTP

  - by bob franklin smith harriet

  Hey, I can't connect to an exchange server using windows XP and outlook 2007, using the "connect anywhere over HTTP" process, it has been working until recently and the user reports no recent changes to his environment. The error is "Outlook must be online or connected to complete this action" It will prompt me for the username and password which I can enter, then it will give the errorm however this only happens when I delete the account and enter all details for the excahnge server again. The client computer that is unable to connect using outlook can connect to the HTTPS mail service and login send/receive fine. Nobody else has reported issues. making a test environment with a clean install of XP and outlook 2007 gives the same error, but using windows 7 and outlook 2007 connects perfectly fine everytime. I also removed all passwords using control keymgr.dll which didnt help. Any assistance or ideas would be appreciated, at this point nothing I've tried from technet or google works <_<

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• Automatic Site Creation

  - by Eddy Freeman

  I have created a platform that i want users to sign up and a new site is created for them instantly. Users will register and afterwards they will receive a username and password for their personal site. The system will work like ecommerce platforms such as www.shopify.com, www.bigcommerce.com, etc.. where users sign up and a new web-shop is created for them instantly. I have been searching for a while how i can create a script to automate this task but couldn't find any tutorials. Am using LAMP (Linux, Apache, MySql and PHP). Am asking if someone can guide me how to write such script or maybe point me to a tutorial or a book or probably similar scripts to automate this task. Sorry if this place is wrong for this question. thanks for your help.

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• How can I share a Windows 7 library with anonymous access without using a Homegroup?

  - by Triynko

  The "homegroup" feature is useless, because it requires a password, and therefore doesn't support anonymous, no-hassle access to shares from devices such as my Sony Bravia TV and non-Windows7 machines. So I turned off homegroup and reverted to the standard shared folders protocol. I'd like to share my Music "Library", so I can play files from my TV through the Surround Sound System, but there seems to be no option to share a library folder other than through a homegroup. I don't want to have to individually share the folders that belong to the library, because that would defeat the purposes of the library, which is to manage which folders are included in the library while also providing an easily accessible view of them all at once. Does anyone know how to share a Windows 7 library without that useless homegroup feature?

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• Keyboard Typing Problem

  - by Wietse G

  Hello all, When i got home from work yesterday i couldn't logg in on my account on my desktop pc (Acer Aspire M5620). The reason for this was that when i was typing, more diggets would appear than i pressed. After logging on an account that required no password (my Dad's) i found out that some of my key bindings were messed up. For instance when typing: W --- qwe would appear q --- qw + right mouse e --- we a --- as s --- asd d --- sd z --- zx x --- zxc c --- xc Moreover pressing: 1 --- 12 2 --- 123 3 --- 23 I am typing this from my Dad's laptop (which is working like a charm). I was wondering if anyone has seen this problem before and thus knows a way to fix it. I'm not the brainy type when it comes to computers. Ps: I apologise for any mistakes in my English, for it is not my native tongue. I'm from the Netherlands

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• Why does waking a PC up with a timer act differently than with the power button?

  - by Dan Rasmussen

  I have a Windows 7 machine set up as a server. It has no monitor and is only accessed through remote desktop. I set up two scheduled tasks, one to put the computer to sleep at night and another to wake it up in the morning. When it's woken up from sleep via a timer, it stays awake for only a couple minutes before going back to sleep. When woken up by pushing the power button, however, it stays awake all the way until the sleep timer. Why does my PC behave differently in these two scenarios? I have set the PC not to prompt for a user's password on wake, since I worried that the login screen might follow different power rules. I tried SmartPower Configuration but had the same problems. I can provide more details if questions are asked in the comments, but I'm not sure what's relevant.

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• OS X Can't Access Netatalk Shares

  - by Rogger Matamoros

  In my home network, I have a server running Ubuntu 10.4, configured to share files to my MacBook Pro running Snow Leopard (10.6.8) with Netatalk and Avahi. It was working like a charm until one day it stopped working. I can see my server in Finder, I can enter a username and password, and it seems to accept it all, but Finder gets stuck "Connecting" until it times out. I've checked the afpd.conf and AppleVolumes.default. They are all intact. My guess is that an update broke something, but I don't know how to troubleshoot it further. Any suggestions?

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• Running remotely an app from a shared folder with PsExec

  - by Stephane

  I am actually not sure that this is possible. let's see: I have a script that runs on a Build server. Let's name this server A. It drops the bins to a shared folder on server B. And I want to run the program on server C. So using caspol I can allow the executable to be ran remotely. that means from B I can run \C\shared\my.exe What I want to do is from A run \C\shared\my.exe on B. SysInternals\PsExec.exe -u username -p password -accepteula \\ServerC -i 0 -d -w \\ServerB\Nightly\Server \\ServerB\Nightly\Server\server.exe The user has all the necessary rights. But, the -w (working directory) options apparently wants a path relative to the server I point to. Any idea?

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• Is there a command line two-factor authentication verification code generator?

  - by dan

  I manage a server with two-factor authentication. I have to use the Google Authenticator iPhone app to get the 6-digit verification code to enter after entering the normal server password. The setup is described here: http://www.mnxsolutions.com/security/two-factor-ssh-with-google-authenticator.html I would like a way to get the verification code using just my laptop and not from my iphone. There must be a way to seed a command line app that generates these verification codes and gives you the code for the current 30-second window. Is there a program that can do this?

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• Help desk cannot respond to UAC prompts over Remote Assistance

  - by blsub6

  I'm trying to use the in-built Remote Assistance (RA) software in Windows 7 to support my users. I initiate a RA session with the user and ask to remotely control their desktop. They tick a little check box that says something to the effect of 'allow helper to respond to UAC prompts' and it pops up with a UAC prompt. The user cannot respond to the UAC prompt because they're not a local administrator - I am. Isn't that what that little check box is for??? I've found this on TechNet from back in '07 on Vista. From what I've found, I could disable UAC (terrible idea) or make all my users local administrators on their computers (yet another terrible idea). I'm hoping that MS has fixed this little oversight in Windows 7. Remote Assistance is completely useless to me if I can't respond to UAC prompts with my username and password

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• Running remotely an app from a shared folder with PsExec

  - by Stephane

  I am actually not sure that this is possible. let's see: I have a script that runs on a Build server. Let's name this server A. It drops the bins to a shared folder on server B. And I want to run the program on server C. So using caspol I can allow the executable to be ran remotely. that means from B I can run \C\shared\my.exe What I want to do is from A run \C\shared\my.exe on B. SysInternals\PsExec.exe -u username -p password -accepteula \\ServerC -i 0 -d -w \\ServerB\Nightly\Server \\ServerB\Nightly\Server\server.exe The user has all the necessary rights. But, the -w (working directory) options apparently wants a path relative to the server I point to. Any idea?

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• What is an SSH key?

  - by acidzombie24

  I signed up for github and notice the ssh key option which looked interesting. I originally expected something like an ssl key (name, co name, etc). After going through it i notice i only put a password and it is always myuser@comp-name (this is windows). Why? I thought it was a user/pass id and i can create separate keys for separate purpose for privacy reasons. Now i see i am required to use one to create a repository. Also i see something about a 'private key file' when looking at options. What exactly is an SSH Key and how can i create a separate user without creating a separate login in windows.

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• How to telnet into facebook chat

  - by OSX Jedi

  I was able to use facebook chat with an external application using the following information: First, find your Facebook username by going to http://www.facebook.com/your_user/. Next, Open iChat, then select iChat » Preferences and click on the Accounts tab. Click on the + (plus) sign to add a new account, with these settings: * Account Type is Jabber Account * Account name is [email protected], and enter your password * Click the drop-down arrow to reveal Server options. Enter chat.facebook.com as the server name. * Enter 5222 as the port and click Done. Click Done again, and you are good to go. From reading this, it seems that it might be possible to telnet into facebook chat. I tried, but wasn't able to. Is it possible? How?

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