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• Can't connect to EC2 instance in VPC (Amazon AWS)

  - by Ryan Lynch

  I've taken the following steps: Created a VPC (with a single public subnet) Added an EC2 instance to the VPC Allocated an elastic IP Associated the elastic IP with the instance Created a security group and assigned it to the instance Modified the security rules to allow inbound ICMP echo and TCP on port 22 I've done all this and I still can't ping or ssh into the instance. If I follow the same steps minus the VPC bits I am able to set this up without issue. What step am I missing?

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• MailServer Email Account Setting for Outlook Express

  - by hitesh-4259

  Hi, I have developed mail server using postfix + amavisd + spamassassin. Mail sending and receiving works perfect using command prompt. When I am configuring with outlook express, then sending mail works perfact, but error is occured while receiving mail. "your emailserver rejected your login. Verify username and password in your account properties." But my account and password are correct. please help me. Thanks in advance.....

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• Secure LAMP server for production use

  - by WalterJ89

  What is the procedure for securing a Linux, Apache, MySQL, PHP Server (or even Perl) for production use? Other than setting the MySql password and the root password for linux what other (maybe not so obvious) steps should be taken? Also what steps can I take if I was going to be extra paranoid that may not normally be nessasary? this is for a basic single site use but must be secure. Thank you. (sorry if this was asked before)

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• Mount CIFS Credentials File has Special Character

  - by David George

  I'm having trouble mounting a share on my XenServer (5.6 FP1). From the command line I try: mount.cifs //server/share /mnt/share -o credentials=credfile The contents of credfile is: username=Administrator password=What@zR\!p3s When I run the above mount command I get "Access Denied". However if I run the following command it works: mount.cifs //server/share /mnt/share -o username=Administrator,password=What@zR\!p3s Please note the "\" is to escape the bang and I've tried this with and without it in the credentials file. Any suggestions?

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• XP shared folders not accessible after BIOS changed

  - by stijn

  Here's what worked for over a year: PC A runs Windows 7, PC B runs Windows XP. Both are on the same subnet behind a router. A uses user account X, but logs in to PC B using the Administrator account. PC B is a Dell Precision 470. A known problem with these is that sometimes when plugging in their power cable they somehow loses all BIOS settings. This happened yesterday. After this happens Windows won't boot, because the default BIOS setting is 'RAID ON' while there is no RAID configured. No problem though, changing the BIOS settings to 'RAID OFF' makes it boot without problems. Note that in the meantime, nothing config-related was changed on machine A. It wasn't even on. Indeed after doing this, everything is fine. Everything includes all normal operations, remote desktop from PC A to PC B, running Synergy between A and B, accessing shared folders from B to A. But accessing the shared folders on B from A does not work any more. I tried pretty much everything I found via Google (fiddling with policies/registry kes/...) but no avail. > ping -a 192.168.2.2 Pinging A [192.168.2.2] with 32 bytes of data: Reply from 192.168.2.2: bytes=32 time<1ms TTL=128 > net view \\192.168.2.2 System error 5 has occurred. Access is denied. > net use /persistent:no K: \\A\myshare /user:A\USERNAME PASSWORD > net use /persistent:no K: \\192.168.2.2\myshare /user:192.168.2.2\USERNAME PASSWORD > net use /persistent:no K: \\192.168.2.2\myshare /user:USERNAME PASSWORD System error 86 has occurred. The specified network password is not correct. A solution to this would be great: I haven't been able to do any work since yesterday ;] update after taking the hard drive out of B and putting it in another Precision 470 with almost exactly the same hardware (at first sight, only the video card differs) the shared folders work.. Putting the disk back into A, same problem remains. Why does this depend on hardware, and more important, on which hardware?

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• Windows 7 Administrator HomeUsers Account

  - by Charles Carrington

  I'm trying to login to my Windows 7 PC from another PC so that I can transfer files to the Windows 7 PC. I've just installed Visual Studio 2008 on my new PC, and I wan't to transfer all of my work from my old machine to my new one. When I first set up a user on the Windows 7 PC after a reformat, the account created had a Group field that read "HomeUsers; Administrators" when viewing it from the User Accounts screen. You get to this screen by typing "netplwiz" in the search field of the Start Menu. I changed the Group of this account to Administrators before I realized that it was assigned to two Groups -- "HomeUsers; Administrators" as I mentioned above. I was trying to make sure that it was an Administrator account so I didn't have to type in a password everytime I wanted to install software. I can use this computer normally without being asked for an administrator password all the time when I want to install new software, but I can't log in to this PC from another PC because I don't have an account that has a Group of "HomeUsers". I should have left the account alone; everything would've been fine. But there doesn't seem to be a way to assign it to two groups after the initial assignment that take place automatically when you are setting up your computer for the first time. If you assign "HomeUsers" to the account, the Group field on the User Accounts screen will just read "HomeUsers". If you assign "Administrators" to the account, the Group field on the User Accounts screen will just read "Administrators". There's no way to make it read "HomeUsers; Administrators" again. If you don't have at least one account that is a "HomeUsers" account, you cannot log in to the PC from another PC on the network. If you don't have an account that is an "Administrators" account, you cannot install software on your machine without being asked for an Administrator password all the time, which is very annoying. I want an account on my Windows 7 PC that I can use to install software without being asked for a password AND that I can log into from another PC on the network to transfer files. If I could make the Group field read "HomeUsers; Administrators" of my primary account on the Windows 7 PC when I go to the User Accounts screen by typing "netplwiz" in the search field of the Start Menu, my primary account would do what I want it to do. Does anybody know how to make an account in Windows 7 a "HomeUsers" account AND an "Administrators" account? As I said before, Windows 7 does this for you automatically when you first set up your computer. But if you change it inadvertently, there is no way to change it back. At least I don't know how to do it. If anybody has any ideas on how to fix this, I would greatly appreciate it. Thanks, Charles Carrington

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• Problem when waking the computer from sleep mode.

  - by Octa

  I have a HP Pavilion dv6-2188la and when it wakes from sleep the monitor flashes (screen flickers), and every time it flashes (2 seconds) it returns me to the beginning of the password field making it almost impossible input the password. Does anyone knows what causes this problem?

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• postgresql login from remote

  - by Hellnar

  Hello, I want to give remote access to my postresql db (8.2) to computers that are at the same lan, at the default config I have added this line to pg_hba.conf where xxx.xx.xx.xx is the ip of the machine that hosts postgresql. This machine is a windows 2k server. # IPv4 local connections: host all all 0.0.0.0/0 password host all all xxx.xx.xx.xx/24 password There no firewall or such blocking the connection between and `listen_addresses = '*' for postgresql.conf .

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• Understanding Unix "Expect"

  - by zchtodd

  I don't think I properly understand the "expect" utility. While searching for a way to automate a build process that involves jar signing, I came across expect, and thought I could use it to supply a password to jarsigner (whether having a password in a shell script is a good idea I understand the risks of). expect "Enter Passphrase for keystore:" Instead of catching this, the jarsigner sat waiting at that line. Am I completely misunderstanding the point of "expect" and if I am, what can I use to achieve this effect?

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• Unable to login to a domain computer using a Local Administrator account

  - by kishore

  I have a server running on windows server 2008. Recently we created a domain and added it to the domain. A domain user account was created with same username and password as my previous local administrator account. Now I unable to login using my local account. I tried loggin in using SERVERNAME\Username, but it is giving incorrect password error message. Is there any way I can retrieve or create a new local administrator account on a domain computer

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• jenkins 1.417 versus Active Directory

  - by bmargulies

  I have a brand new installation of Jenkins 1.417 on Ubuntu 11.6, trying to talk to an active directory. I have the Active Directory plugin installed. If I leave off the base DN and password, the 'test' button claims success, while actual authentication fails. If I put in a user name and password on the domain, the test button fails (just as above). Is there some tweak required to the AD configuration to allow something like Jenkins to talk to it?

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• How to Reinstalling MSSQL Server 2008 with SP1? (Windows 7)

  - by user23884

  I am using Windows 7 Ultimate x64. I had earlier installed SQL server 2008 with SP1 with Visual Studio 2008 Team System with sp1. Now that VS2010 is out I wanted to install it so I uninstalled visual studio then MSSLQ Server 2008 SP1 and then SQL Server 2008 as suggested here: h**p://mark.michaelis.net/Blog/SQLServer2008InstallNightmare.aspx But now when I try to reinstall it I am unable to get it right I am getting the ERROR: “Attempted to perform an unauthorized operation.” (Following is part of the log file): 2010-04-16 04:54:57 Slp: Sco: Attempting to replace account with sid in security descriptor D:(A;CI;KR;;;S-1-5-21-2213424280-2581054173-1939225444-1027) 2010-04-16 04:54:57 Slp: ReplaceAccountWithSidInSddl -- SDDL to be processed: D:(A;CI;KR;;;S-1-5-21-2213424280-2581054173-1939225444-1027) 2010-04-16 04:54:57 Slp: ReplaceAccountWithSidInSddl -- SDDL to be returned: D:(A;CI;KR;;;S-1-5-21-2213424280-2581054173-1939225444-1027) 2010-04-16 04:54:57 Slp: Prompting user if they want to retry this action due to the following failure: 2010-04-16 04:54:57 Slp: ---------------------------------------- 2010-04-16 04:54:57 Slp: The following is an exception stack listing the exceptions in outermost to innermost order 2010-04-16 04:54:57 Slp: Inner exceptions are being indented 2010-04-16 04:54:57 Slp: 2010-04-16 04:54:57 Slp: Exception type: Microsoft.SqlServer.Configuration.Sco.ScoException 2010-04-16 04:54:57 Slp: Message: 2010-04-16 04:54:57 Slp: Attempted to perform an unauthorized operation. 2010-04-16 04:54:57 Slp: Data: 2010-04-16 04:54:57 Slp: WatsonData = Microsoft SQL Server 2010-04-16 04:54:57 Slp: DisableRetry = true 2010-04-16 04:54:57 Slp: Inner exception type: System.UnauthorizedAccessException 2010-04-16 04:54:57 Slp: Message: 2010-04-16 04:54:57 Slp: Attempted to perform an unauthorized operation. 2010-04-16 04:54:57 Slp: Stack: 2010-04-16 04:54:57 Slp: at System.Security.AccessControl.Win32.GetSecurityInfo(ResourceType resourceType, String name, SafeHandle handle, AccessControlSections accessControlSections, RawSecurityDescriptor& resultSd) 2010-04-16 04:54:57 Slp: at System.Security.AccessControl.NativeObjectSecurity.CreateInternal(ResourceType resourceType, Boolean isContainer, String name, SafeHandle handle, AccessControlSections includeSections, Boolean createByName, ExceptionFromErrorCode exceptionFromErrorCode, Object exceptionContext) 2010-04-16 04:54:57 Slp: at Microsoft.SqlServer.Configuration.Sco.SqlRegistrySecurity..ctor(ResourceType resourceType, SafeRegistryHandle handle, AccessControlSections includeSections) 2010-04-16 04:54:57 Slp: at Microsoft.SqlServer.Configuration.Sco.SqlRegistrySecurity.Create(InternalRegistryKey key) 2010-04-16 04:54:57 Slp: at Microsoft.SqlServer.Configuration.Sco.InternalRegistryKey.SetSecurityDescriptor(String sddl, Boolean overwrite) 2010-04-16 04:54:57 Slp: ---------------------------------------- 2010-04-16 10:37:19 Slp: User has chosen to cancel this action 2010-04-16 10:37:19 Slp: Watson Bucket 2 Original Parameter Values 2010-04-16 10:37:19 Slp: Parameter 0 : SQL2008@RTM@ 2010-04-16 10:37:19 Slp: Parameter 2 : System.Security.AccessControl.Win32.GetSecurityInfo 2010-04-16 10:37:19 Slp: Parameter 3 : Microsoft.SqlServer.Configuration.Sco.ScoException@1211@1 2010-04-16 10:37:19 Slp: Parameter 4 : System.UnauthorizedAccessException@-2147024891 2010-04-16 10:37:19 Slp: Parameter 5 : SqlBrowserConfigAction_install_ConfigNonRC 2010-04-16 10:37:19 Slp: Parameter 7 : Microsoft SQL Server 2010-04-16 10:37:19 Slp: Parameter 8 : Microsoft SQL Server 2010-04-16 10:37:19 Slp: Final Parameter Values I have googled around for the error given error but all I could find is to regedit and reset permissions on certain reg keys but I don’t see any reg keys with access problem in the log file the log file can be download here: http://www.mediafire.com/?dznizytjznn. Please guys help me out here I am a developer and I cannot afford an OS reinstallation! Thanks in advance…

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• How do you enable Remote Connection with SQL Server 2008 w/o Installing Management Studio?

  - by danmine

  I'm having a rather tough time finding information on this since almost everything I read requires Management Studio installed in the server which I prefer not to do. Also, to connect to it using SQL Server Management Studio installed on the client, are these settings ok? ServerName: 10.232.234,1433\SQLEXPRESS Login: sa Password: password Yes, I want to specify the port number in the client side since I have to go through a few firewalls which I have poke holes through to get to the SQL Default port 1433.

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• Published software not displayed in Add/Remove Programs

  - by vikramsjn

  I just followed How to use Group Policy to remotely install software in Windows Server 2003 to try publishing a software (MSI file). I could follow all the steps, but the supposedly successfully published software does not appear on client/user machine's Add/Remove Programs. Could some help figure why this may not be working. Update: On reading this question on Experts-Exchange, tried gpresults. Output extract follows: COMPUTER SETTINGS The following GPOs were not applied because they were filtered out XADistribution Filtering: Denied (Security) Default Domain Policy Filtering: Denied (Security)

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• Setting a non-standard proxy

  - by Julio Guerra

  I am behind a proxy which requires users to login during the first connection with a username and password with a HTML form. Thus, it is not handled with usual http://username:[email protected] and any attempt to access the internet from this setting falls into the login form. How could I automatically login to the proxy? In linux, what manages proxy stuffs when a command tries to access the internet? Thank you.

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• could not connect to server: Operation timed out

  - by JohnMerlino

  I am able to ssh into my ubuntu server with a user name and password from the terminal. However, when I try to connect to the server using the same name and password via pgadmin, I am getting the following error: could not connect to server: Operation timed out Is the server running on host "xx.xxx.xx.xxx" and accepting TCP/IP connections on port 5432? Why am I able to connect through terminal but not pgadmin?

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• Exporting user keytabs in MIT Kerberos

  - by fahadsadah

  Hello, How can I export a Kerberos keytab with a given password, so I can use it to authenticate passwordless with MIT KfW, while still being able to authenticate with a password elsewhere? Thanks

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• On a linux server how do you use multiple terminals over a single ssh connection?

  - by epochwolf

  I often find myself opening several ssh connections in order to view several log files at a time with tail -f. This isn't a problem when I'm at home because I use public key encryption for password-less login. However, I will often use computer at my university to do this so I don't have the option of using my private key. It gets annoying to enter my password 4 or 5 times to get several terminal windows. How can I get multiple terminals over a single connection?

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• Windows 2008 R2 IPsec encryption in tunnel mode, hosts in same subnet

  - by fission

  In Windows there appear to be two ways to set up IPsec: The IP Security Policy Management MMC snap-in (part of secpol.msc, introduced in Windows 2000). The Windows Firewall with Advanced Security MMC snap-in (wf.msc, introduced in Windows 2008/Vista). My question concerns #2 – I already figured out what I need to know for #1. (But I want to use the ‘new’ snap-in for its improved encryption capabilities.) I have two Windows Server 2008 R2 computers in the same domain (domain members), on the same subnet: server2 172.16.11.20 server3 172.16.11.30 My goal is to encrypt all communication between these two machines using IPsec in tunnel mode, so that the protocol stack is: IP ESP IP …etc. First, on each computer, I created a Connection Security Rule: Endpoint 1: (local IP address), eg 172.16.11.20 for server2 Endpoint 2: (remote IP address), eg 172.16.11.30 Protocol: Any Authentication: Require inbound and outbound, Computer (Kerberos V5) IPsec tunnel: Exempt IPsec protected connections Local tunnel endpoint: Any Remote tunnel endpoint: (remote IP address), eg 172.16.11.30 At this point, I can ping each machine, and Wireshark shows me the protocol stack; however, nothing is encrypted (which is expected at this point). I know that it's unencrypted because Wireshark can decode it (using the setting Attempt to detect/decode NULL encrypted ESP payloads) and the Monitor Security Associations Quick Mode display shows ESP Encryption: None. Then on each server, I created Inbound and Outbound Rules: Protocol: Any Local IP addresses: (local IP address), eg 172.16.11.20 Remote IP addresses: (remote IP address), eg 172.16.11.30 Action: Allow the connection if it is secure Require the connections to be encrypted The problem: Though I create the Inbound and Outbound Rules on each server to enable encryption, the data is still going over the wire (wrapped in ESP) with NULL encryption. (You can see this in Wireshark.) When the arrives at the receiving end, it's rejected (presumably because it's unencrypted). [And, disabling the Inbound rule on the receiving end causes it to lock up and/or bluescreen – fun!] The Windows Firewall log says, eg: 2014-05-30 22:26:28 DROP ICMP 172.16.11.20 172.16.11.30 - - 60 - - - - 8 0 - RECEIVE I've tried varying a few things: In the Rules, setting the local IP address to Any Toggling the Exempt IPsec protected connections setting Disabling rules (eg disabling one or both sets of Inbound or Outbound rules) Changing the protocol (eg to just TCP) But realistically there aren't that many knobs to turn. Does anyone have any ideas? Has anyone tried to set up tunnel mode between two hosts using Windows Firewall? I've successfully got it set up in transport mode (ie no tunnel) using exactly the same set of rules, so I'm a bit surprised that it didn't Just Work™ with the tunnel added.

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• Clearing cmd.exe memory or cache

  - by Abs

  The main question is how do I clear the command prompts memory or cache. I ran this on cmd.exe svn info <URL> Which prompted me a for a username and password which I entered. I then logged off and logged back in immediately and I entered that same command and I wasn't asked for a username and password. I want to clear this to test something without restarting my server! How can I do this?

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• CPanel: Are there logs for login attempts?

  - by jeff

  Hello, I tried to login into a cpanel account that hasn't been accessed for a few months and discovered that my login details no longer worked. When I reset the password and gained access into my domains control panel, my email password also didn't work. Upon that first attempt I was given a message reading "Brute force attempt..." So, does cpanel keep a list of logins? or login attempts? Thanks for any help!

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• Taking over locked user sessions in XP

  - by hurfdurf

  What's the best way to allow an administrator access to a locked user XP session, preferably with a logged event? The goal is to allow admins to cleanly shutdown/save existing work when work needs to be done on the PC. I am aware of the various VNC software flavors, but that only works when the PC is unlocked. Resetting the user password on the DC doesn't work either since the unlock password is cached locally, which means you still have to log the user out and possibly lose work.

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• Adding FreeBSD user upon first login

  - by Halik

  Is it possible, to achieve the proposed behavior on my FreeBSD 8.2 server: New user ssh's into my server. He supplies as 'Login:' his student index number and a new, locked account is created with random password that is sent to his [email protected] mail as authentication method. After he logs in with this password, account is fully created and activated/unlocked and the user is asked/forced to change the pass for a new one.

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• install windows from cd

  - by doug

  hi there I have an friends acer laptop but i don't have access to the bios, and I cannot boot from CD-ROM. Bios is password protected, my friend doesn't remember the password, and I'm too lazy to open and reset it. I have to install windows XP. What can I do? ty

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• Connecting to a UltraVNC server in one click

  - by Fabian

  I have to following setup on two Win7 machines connected over LAN: UltraVNC Server <---- UltraVNC Viewer Since I'm only interested into connecting always to the same server, I was wondering if it is possible to start the viewer and connect to the server with only one-click. Start Viewer + Connect + Enter Password (three steps) Since I've already figured out that I can automate the last step with the -password argument, I'm down to two steps: Start Viewer + Connect (two steps) How can I tell the UltraVNC viewer to automatically connect?

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