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  • Desktop GUI Client - Remote RDBMS communication

    - by magom001
    Sorry if I am asking a trivial question but I have been searching for a while without any luck. I need to design a system and I am looking for advice on the technology that should be used. The layout is very simple: it is a sales application with a centralized database and multiple clients. Each salesperson has GUI app installed on his/her laptop that should be able to connect to the database to retrieve data and upload data (i.e. register new orders). My question is the following: how should the communication between the client and the server be implemented? I doubt that connecting directly to the RDBMS is a good idea... Should I use web-services? XML-RPC? How to implement authentication and encode the data? Thanks for your advice!

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  • remote control android, a reverse ssh tunnel

    <b>Handle With Linux:</b> "Reasons for using a reverse shell include: you can bypass firewalls, you can connect to your phone without knowing the ip, the connection is initiated from the phone so you don't need to have a ssh server listening on your phone. Just think of all the fun this makes possible!"

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  • not able to install Remote Console Plug-in

    - by Fliberdgibit
    Created Virtual Machine Tried to install VMware Remote Console Plug-in After installation process, went to the virtual machines Console to find the same as before. "The VMware Remote Console Plug-in is not installed or could not be found." Subsequent try to install wants to "Remove " the

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  • is this server relevant for connect many host?

    - by user50882
    please see following link,i want to know it this server is able to work with many host? http://www.itema-pg.com/pc/desktop/xseries_x336.pdf http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=150515177017&ssPageName=ADME:X:RTQ:US:1123#ht_1662wt_1139 main requirment is that i want to make hosting servers,maybe i will buy some amount of this server just am curious if it can work and is good.

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  • Disconnect from Ubuntu remote server

    - by user43101
    I remote access to my server install LAMP and in the middle of the installation it disconnected. and from then i cannot a remote to that server and giving the error "Cannot connect to VNC server error 60001" Please help give some suggestion.....with the problem above

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  • Access a remote active directory

    - by theXs
    I'm currently trying to query a remote Active Directory on a Windows Server 2008 R2. However, I'm not able to query the directory if I enter the following string in the cmd line: dsquery user -name m* -s ip:389 -u -p Furthermore, I tried to access the directory with: ldap://: but it didn't work either. I received the following error message: The server is not operational. Is there an option with which I can enable the remote access of an Active Directory?

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  • How to conncet(join) host laptop to the guset 2k8 server [closed]

    - by Dawood Said
    Dear brother I have core i5 laptop with wireless ip " 192.168.3.102", and I installed virtulbx in my laptop.In the virtualbox I made a network of two virtual machine W2k8 and window xp of ip's 192.168.3.200 and 192.168.3.201 respectively with " internal network" option from virtulabox. Now i want to coonet the host laptop to this virtual network and also wnat that the internet is running on the laptop . Is it possible please help me in this regard

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  • AppFabric Cache - An existing connection was forcibly closed by the remote host

    - by Wallace Breza
    I'm trying to get AppFabric cache up and running on my local development environment. I have Windows Server AppFabric Beta 2 Refresh installed, and the cache cluster and host configured and started running on Windows 7 64-bit. I'm running my MVC2 website in a local IIS website under a v4.0 app pool in integrated mode. HostName : CachePort Service Name Service Status Version Info -------------------- ------------ -------------- ------------ SN-3TQHQL1:22233 AppFabricCachingService UP 1 [1,1][1,1] I have my web.config configured with the following: <configSections> <section name="dataCacheClient" type="Microsoft.ApplicationServer.Caching.DataCacheClientSection, Microsoft.ApplicationServer.Caching.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" allowLocation="true" allowDefinition="Everywhere"/> </configSections> <dataCacheClient> <hosts> <host name="SN-3TQHQL1" cachePort="22233" /> </hosts> </dataCacheClient> I'm getting an error when I attempt to initialize the DataCacheFactory: protected CacheService() { _cacheFactory = new DataCacheFactory(); <-- Error here _defaultCache = _cacheFactory.GetDefaultCache(); } I'm getting the ASP.NET yellow error screen with the following: An existing connection was forcibly closed by the remote host Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host Source Error: Line 21: protected CacheService() Line 22: { Line 23: _cacheFactory = new DataCacheFactory(); Line 24: _defaultCache = _cacheFactory.GetDefaultCache(); Line 25: }

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  • JBoss 5.1 binds to host address while run in vserver with -b <guest address>

    - by bart cane
    Hello, while starting JBoss 5.1.0.GA in virtual server machine on Debian (linux-VServer technology) I get the following error: ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (main) Error installing to Start: name=jboss.remoting:protocol=rmi,service=JMXConnectorServer state=Create mode=Manual requiredState=Installed java.io.IOException: Cannot bind to URL [rmi://10.1.2.11:1090/jmxconnector]: javax.naming.NoPermissionException [Root exception is java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.AccessException: Registry.Registry.bind disallowed; origin /AA.BB.CC.DD is non-local host] where AA.BB.CC.DD is host machine name, 10.1.2.11 is vserver guest with JBoss and JBoss is started with -b 10.1.2.11 (I also tried -Djboss.bind.address=10.1.2.11 - the same result). 10.1.2.11 is bound to dummy2 interface on host (serving 10.1.2.1 network). The root exception is strange - why JBoss wants to bind to host address AA.BB.CC.DD? There were no problems with 4.2.3.GA on the same machine, also started with -b 10.1.2.11. It starts correctly when no params present - binds to localhost and everything is ok, but it MUST be bound to 10.1.2.11 to be visible by Apache on another vserver guest, acting as proxy. I thought that it can be fixed by setting net.ipv4.conf.all.promote_secondaries=1 via sysctl (was 0) but it didn't help much. Has anyone had such problem? Regards, bart

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  • git push heroku master gives error ssh: connect to host heroku.com port 22: Connection refused

    - by user1476508
    I'm trying to run the heroku-django tutorial (using ubuntu 12.04) and it seems for some reason i cant push into heroku. here is what happens: yeinhorn@ubuntu:~/hellodjango$ git init Reinitialized existing Git repository in /home/yeinhorn/hellodjango/.git/ yeinhorn@ubuntu:~/hellodjango$ git add . yeinhorn@ubuntu:~/hellodjango$ git commit -m "my first commit" On branch master nothing to commit (working directory clean) yeinhorn@ubuntu:~/hellodjango$ heroku create Creating high-dusk-6308... done, stack is cedar http://high-dusk-6308.herokuapp.com/ | [email protected]:high-dusk-6308.git ! New default stack: Cedar. To use Bamboo, run heroku create -s bamboo. yeinhorn@ubuntu:~/hellodjango$ git remote -v heroku [email protected]:blazing-dusk-8587.git (fetch) heroku [email protected]:blazing-dusk-8587.git (push) yeinhorn@ubuntu:~/hellodjango$ git push heroku master ssh: connect to host heroku.com port 22: Connection refused fatal: The remote end hung up unexpectedly yeinhorn@ubuntu:~/hellodjango$ git push -f heroku ssh: connect to host heroku.com port 22: Connection refused fatal: The remote end hung up unexpectedly also when i run $telnet heroku.com 22 i get Trying 50.19.85.132... Trying 50.19.85.154... Trying 50.19.85.156... telnet: Unable to connect to remote host: Connection refused any ideas?

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  • Host ::1 resolves to remote IP

    - by thebuckst0p
    /etc/hosts files usually have this line, ::1 localhost. I thought ::1 was the equivalent of 127.0.0.1/localhost, and from my reading it seems to be the IPv6 version. So I was using it in Apache for firewalling, "Allow from ::1" and it only allowed local. Then suddenly that stopped working, so I pinged ::1 and got a remote IP address. I tracerouted it and it went through my ISP, through some Microsoft server, then another half dozen steps of asterisks... I'm not sure why this would be (the remote IP), but it doesn't seem good. I grep'd my hard drive for the remote IP and it doesn't appear anywhere. Is this some indicator that I'm being hacked, or normal behavior? Maybe my IPv6 settings are wrong? (This is a brand new MacBookPro with Snow Leopard.) Any ideas about this would be great - what is ::1 supposed to be, why would it be remote, should I be worried, how do I get it back to localhost? Thank you!

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  • Why does my PowerShell script hang when called in PSEXEC via a batch (.cmd) file?

    - by Kev
    I'm trying to remotely execute a PowerShell script using PSEXEC. The PowerShell script is called via a .cmd batch file. The reason we do this is to change the execution policy, run the powershell script then reset the execution policy again: On the remote server do-tasks.cmd looks like: powershell -command "&{ set-executionpolicy unrestricted}" powershell DoTasks.ps1 powershell -command "&{ set-executionpolicy restricted}" The PowerShell script DoTasks.ps1 just does this for now: Write-Output "Hello World!" Both of these scripts live in c:\windows\system32 (for now) just so they're on the PATH. On the originating server I do this: psexec \\web1928 -u administrator -p "adminpassword" do-tasks.cmd When this runs I get the following response at the command line: c:\Windows\system32>powershell -command "&{ set-executionpolicy unrestricted}" and the script runs no further. I can't ctrl-c to break the script and I just see ^C characters, I can type input from the keyboard and the characters are echoed to console. On the remote server I see that PowerShell.exe and CMD.exe are running in Task Manager's Process tab. If I end these processes then control returns to the command line on the originating server. I have tried this with just a simple .cmd batch file with a @echo hello world and it works just fine. Running do-tasks.cmd on the remote server via an RDP session works ok as well. Why is my remote batch file getting stuck when executing via PSEXEC?

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  • Server compromised. Bounce message contains many email addresses message was not sent to

    - by Tim Duncklee
    This is not a dupe. Please read and understand the issue before marking this as a duplicate question that has been answered already. Several customers are reporting bounce messages like the one below. At first I thought their computers had a virus but then I received one that was server generated so the problem is with the server. I've inspected the logs and these email addresses do not appear in the logs. The only thing I see that I do not remember seeing in the past are entries like this: Apr 30 13:34:49 psa86 qmail-queue-handlers[20994]: hook_dir = '/var/qmail//handlers/before-queue' Apr 30 13:34:49 psa86 qmail-queue-handlers[20994]: recipient[3] = '[email protected]' Apr 30 13:34:49 psa86 qmail-queue-handlers[20994]: handlers dir = '/var/qmail//handlers/before-queue/recipient/[email protected]' I've searched here and the web and maybe I'm just not entering the right search terms but I find nothing on this issue. Does anyone know how a hacker would attach additional email addresses to a message at the server and have them not appear in the logs? CentOS release 5.4, Plesk 8.6, QMail 1.03 Hi. This is the qmail-send program at psa.aaaaaa.com. I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out. <[email protected]>: 82.201.133.227 does not like recipient. Remote host said: 550 #5.1.0 Address rejected. Giving up on 82.201.133.227. <[email protected]>: 64.18.7.10 does not like recipient. Remote host said: 550 No such user - psmtp Giving up on 64.18.7.10. <[email protected]>: 173.194.68.27 does not like recipient. Remote host said: 550-5.1.1 The email account that you tried to reach does not exist. Please try 550-5.1.1 double-checking the recipient's email address for typos or 550-5.1.1 unnecessary spaces. Learn more at 550 5.1.1 http://support.google.com/mail/bin/answer.py?answer=6596 w8si1903qag.18 - gsmtp Giving up on 173.194.68.27. <[email protected]>: 207.115.36.23 does not like recipient. Remote host said: 550 5.2.1 <[email protected]>... Addressee unknown, relay=[174.142.62.210] Giving up on 207.115.36.23. <[email protected]>: 207.115.37.22 does not like recipient. Remote host said: 550 5.2.1 <[email protected]>... Addressee unknown, relay=[174.142.62.210] Giving up on 207.115.37.22. <[email protected]>: 207.115.37.20 does not like recipient. Remote host said: 550 5.2.1 <[email protected]>... Addressee unknown, relay=[174.142.62.210] Giving up on 207.115.37.20. <[email protected]>: 207.115.37.23 does not like recipient. Remote host said: 550 5.2.1 <[email protected]>... Addressee unknown, relay=[174.142.62.210] Giving up on 207.115.37.23. <[email protected]>: 207.115.36.22 does not like recipient. Remote host said: 550 5.2.1 <[email protected]>... Addressee unknown, relay=[174.142.62.210] Giving up on 207.115.36.22. <[email protected]>: 74.205.16.140 does not like recipient. Remote host said: 553 sorry, that domain isn't in my list of allowed rcpthosts; no valid cert for gatewaying (#5.7.1) Giving up on 74.205.16.140. <[email protected]>: 207.115.36.20 does not like recipient. Remote host said: 550 5.2.1 <[email protected]>... Addressee unknown, relay=[174.142.62.210] Giving up on 207.115.36.20. <[email protected]>: 207.115.37.21 does not like recipient. Remote host said: 550 5.2.1 <[email protected]>... Addressee unknown, relay=[174.142.62.210] Giving up on 207.115.37.21. <[email protected]>: 192.169.41.23 failed after I sent the message. Remote host said: 554 qq Sorry, no valid recipients (#5.1.3) --- Below this line is a copy of the message. Return-Path: <[email protected]> Received: (qmail 15962 invoked from network); 1 May 2013 06:49:34 -0400 Received: from exprod6mo107.postini.com (64.18.1.18) by psa.aaaaaa.com with (DHE-RSA-AES256-SHA encrypted) SMTP; 1 May 2013 06:49:34 -0400 Received: from aaaaaa.com (exprod6lut001.postini.com [64.18.1.199]) by exprod6mo107.postini.com (Postfix) with SMTP id 47F80B8CA4 for <[email protected]>; Wed, 1 May 2013 03:49:33 -0700 (PDT) From: "Support" <[email protected]> To: [email protected] Subject: Detected Potential Junk Mail Date: Wed, 1 May 2013 03:49:33 -0700 Dear [email protected], junk mail protection service has detected suspicious email message(s) since your last visit and directed them to your Message Center. You can inspect your suspicious email at: ... UPDATE: After not seeing this problem for a while, I personally sent a message and immediately got a bounce with several bad addresses that I know I did not send to. These are addresses that are not on my system or on the server. This problem happens with both Mac and Windows clients and with messages generated from Postini and sent to users on my system. This is NOT backscatter. If it was backscatter it would not have the contents of my message in it. UPDATE #2 Here is another bounce. This one was sent by me and the bounce came back immediately. Hi. This is the qmail-send program at psa.aaaaaa.com. I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out. <[email protected]>: 71.74.56.227 does not like recipient. Remote host said: 550 5.1.1 <[email protected]>... User unknown Giving up on 71.74.56.227. <[email protected]>: Connected to 208.34.236.3 but sender was rejected. Remote host said: 550 5.7.1 This system is configured to reject mail from 174.142.62.210 [174.142.62.210] (Host blacklisted - Found on Realtime Black List server 'bl.mailspike.net') <[email protected]>: 66.96.80.22 failed after I sent the message. Remote host said: 552 sorry, mailbox [email protected] is over quota temporarily (#5.1.1) <[email protected]>: 83.145.109.52 does not like recipient. Remote host said: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table Giving up on 83.145.109.52. <[email protected]>: 69.49.101.234 does not like recipient. Remote host said: 550 5.7.1 <[email protected]>... H:M12 [174.142.62.210] Connection refused due to abuse. Please see http://mailspike.org/anubis/lookup.html or contact your E-mail provider. Giving up on 69.49.101.234. <[email protected]>: 212.55.154.36 does not like recipient. Remote host said: 550-The account has been suspended for inactivity 550 A conta do destinatario encontra-se suspensa por inactividade (#5.2.1) Giving up on 212.55.154.36. <[email protected]>: 199.168.90.102 failed after I sent the message. Remote host said: 552 Transaction [email protected] failed, remote said "550 No such user" (#5.1.1) <[email protected]>: 98.136.217.192 failed after I sent the message. Remote host said: 554 delivery error: dd Sorry your message to [email protected] cannot be delivered. This account has been disabled or discontinued [#102]. - mta1210.sbc.mail.gq1.yahoo.com --- Below this line is a copy of the message. Return-Path: <[email protected]> Received: (qmail 2618 invoked from network); 2 Jun 2013 22:32:51 -0400 Received: from 75-138-254-239.dhcp.jcsn.tn.charter.com (HELO ?192.168.0.66?) (75.138.254.239) by psa.aaaaaa.com with SMTP; 2 Jun 2013 22:32:48 -0400 User-Agent: Microsoft-Entourage/12.34.0.120813 Date: Sun, 02 Jun 2013 21:32:39 -0500 Subject: Refinance From: Tim Duncklee <[email protected]> To: Scott jones <[email protected]> Message-ID: <CDD16A79.67344%[email protected]> Thread-Topic: Reference Thread-Index: Ac5gAp2QmTs+LRv0SEOy7AJTX2DWzQ== Mime-version: 1.0 Content-type: multipart/mixed; boundary="B_3453053568_12034440" > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3453053568_12034440 Content-type: multipart/related; boundary="B_3453053568_11982218" --B_3453053568_11982218 Content-type: multipart/alternative; boundary="B_3453053568_12000660" --B_3453053568_12000660 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Scott, ... email body here ... Here are the relevant log entries: Jun 2 22:32:50 psa qmail-queue[2616]: mail: all addreses are uncheckable - need to skip scanning (by deny mode) Jun 2 22:32:50 psa qmail-queue[2616]: scan: the message(drweb.tmp.i2SY0n) sent by [email protected] to [email protected] should be passed without checks, because contains uncheckable addresses Jun 2 22:32:50 psa qmail-queue-handlers[2617]: Handlers Filter before-queue for qmail started ... Jun 2 22:32:50 psa qmail-queue-handlers[2617]: [email protected] Jun 2 22:32:50 psa qmail-queue-handlers[2617]: [email protected] Jun 2 22:32:50 psa qmail-queue-handlers[2617]: hook_dir = '/var/qmail//handlers/before-queue' Jun 2 22:32:50 psa qmail-queue-handlers[2617]: recipient[3] = '[email protected]' Jun 2 22:32:50 psa qmail-queue-handlers[2617]: handlers dir = '/var/qmail//handlers/before-queue/recipient/[email protected]' Jun 2 22:32:51 psa qmail: 1370226771.060211 starting delivery 57: msg 1540285 to remote [email protected] Jun 2 22:32:51 psa qmail: 1370226771.060402 status: local 0/10 remote 1/20 Jun 2 22:32:51 psa qmail: 1370226771.060556 new msg 4915232 Jun 2 22:32:51 psa qmail: 1370226771.060671 info msg 4915232: bytes 687899 from <[email protected]> qp 2618 uid 2020 Jun 2 22:32:51 psa qmail-remote-handlers[2619]: Handlers Filter before-remote for qmail started ... Jun 2 22:32:51 psa qmail-queue-handlers[2617]: starter: submitter[2618] exited normally Jun 2 22:32:51 psa qmail-remote-handlers[2619]: from= Jun 2 22:32:51 psa qmail-remote-handlers[2619]: [email protected] Jun 2 22:32:51 psa qmail: 1370226771.078732 starting delivery 58: msg 4915232 to remote [email protected] Jun 2 22:32:51 psa qmail: 1370226771.078825 status: local 0/10 remote 2/20 Jun 2 22:32:51 psa qmail-remote-handlers[2621]: Handlers Filter before-remote for qmail started ... Jun 2 22:32:51 psa qmail-remote-handlers[2621]: [email protected] Jun 2 22:32:51 psa qmail-remote-handlers[2621]: [email protected]

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  • What's the difference between Host and HostName in SSH Config?

    - by Bill Jobs
    The man page says this: Host Host Restricts the following declarations (up to the next Host keyword) to be only for those hosts that match one of the patterns given after the keyword. If more than one pattern is provided, they should be separated by whitespace. A single `*' as a pattern can be used to provide global defaults for all hosts. The host is the hostname argument given on the command line (i.e. the name is not converted to a canonicalized host name before matching). A pattern entry may be negated by prefixing it with an exclamation mark (`!'). If a negated entry is matched, then the Host entry is ignored, regardless of whether any other patterns on the line match. Negated matches are therefore useful to provide exceptions for wildcard matches. See PATTERNS for more information on patterns. HostName HostName Specifies the real host name to log into. This can be used to specify nicknames or abbreviations for hosts. If the hostname contains the character sequence `%h', then this will be replaced with the host name specified on the command line (this is useful for manipulating unqualified names). The default is the name given on the com- mand line. Numeric IP addresses are also permitted (both on the command line and in HostName specifications). For example, when I want to create an SSH Config for GitHub, what should Host and HostName be respectively?

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  • Autologin 2 Windows users OR Login another user from the desktop

    - by fpdragon
    I'm using two windows users on my HTPC at the same time. One is just for watching videos and one for administration via remote. This setup is quite ideal for me since windows can handle multiple concurrent logins and the win "rdp concurrent hack" (Google). The problem is, I want both users to be logged in automatically when the pc was started. It shall be possible to watch tv and also the admin user shall be automatically logged in to start my scripts and other tasks, even if I haven't logged in via remote desktop manually. Later, when I want to admin my htpc I can just rdp connect the admin user without interrupting the video playback on the actual HTPC's screen and check my cleanup tasks, downloads, ... witch already executed for this admin user. But right now I found no solution to automatically login user A from a user B desktop and I also found no solution to autologin both users immediately at startup. As a workaround I have to fire up my other notebook machine and login one time with the remote user via rdp. From this time on the remote admin user is running concurrent with the main user in the background of the machine. The other workaround would be... after startup switch user from main user to admin user and then back again. But that also requires manual steps. I'm on a Windows 8 System right now but all infos for Win7 or XP would be also interesting. thanks a lot for all ideas. PS: just to prevent useless posts... don't tell me that only one user can be logged in to windows. ;)

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  • Windows 2008 R2 RDS - Double Login

    - by colo_joe
    Issue: Double logins when connecting to RemoteApps or Remote Desktop Environment: Gateway = 1 server 2008 R2 - Roles = Gateway, Session Broker, Connection Mgr, Session Host Configuration server Session hosts = 2 servers 2008 R2 - Roles = App Manager and Session host configuration Testing: I can get to the url http://RDS.domain.com/rdweb - I get prompted for authentication (1) Pass authentication, get list of remote apps. Click on remoteapps or remote desktop, get prompted for authentication again (2). Pass authentication, I get access to app or RDP. Done so far. On session host Signed rdp files with cert. Added the following to the custom RDP settings: Authenticaton level:i:0 = If server authentication fails, connect to the computer without warning (Connect and don’t warn me). prompt for credentials on client:i:1 = RDC will prompt for credentials when connecting to a server that does not support server authentication. enablecredsspsupport:i:1 = RDP will use CredSSP, if the operating system supports CredSSP. Edited the javascript file as found in http://support.microsoft.com/kb/977507 Added Connection ID, and added Web Access server to TS Web Access Computers group on the Session host servers, and Signed apps as found in hxxp://blogs.msdn.com/b/rds/archive/2009/08/11/introducing-web-single-sign-on-for-remoteapp-and-desktop-connections.aspx Note: This double login happens internally and externally.

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  • Can not connect remotely to MySQL Server on Ubuntu 10.10

    - by BobFranz
    Ok I have searched google for two days trying to get this to work. Here are the steps I have taken so far: Clean install of Ubuntu 10.10 Install mysql 5.1 as well as admin Comment out the bind address in the config file Create a new database Create a new user that is username@% to allow remote connections Grant all access to this user to the new database EXCEPT the grant option Login on the server is ok using this new user and database on the localhost Login on the server is ok using this new user and database on the server internal network ip Login from a remote computer is ok using this new user and database using the internal network ip Login is not working when logging in with this username and database using the external ip address from the server or the remote computer. I have port forwarding enabled for this port and it is viewable from outside as confirmed by canyouseeme.org I have nmap'd using the following command on the internal ip and get the below result: nmap -PN -p 3306 192.168.1.73 Starting Nmap 5.21 ( http://nmap.org ) at 2011-02-19 13:41 PST Nmap scan report for computername-System-Name (192.168.1.73) Host is up (0.00064s latency). PORT STATE SERVICE 3306/tcp open mysql Nmap done: 1 IP address (1 host up) scanned in 0.23 seconds I have nmap'd using the following command on the internal ip and get the below result(I have hidden ip for obvious reasons): nmap -PN -p 3306 xxx.xxx.xx.xxx Starting Nmap 5.21 ( http://nmap.org ) at 2011-02-19 13:42 PST Nmap scan report for HOSTNAME (xxx.xxx.xx.xxx) Host is up (0.00056s latency). PORT STATE SERVICE 3306/tcp closed mysql Nmap done: 1 IP address (1 host up) scanned in 0.21 seconds I am completely stuck here and need some help. I have tried everything under the moon and still can not connect from a remote external ip address. Any help is greatly appreciated and I need to do anything to help find the problem let me know and I will post the results here.

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  • Transition domain to new web host without waiting for DNS propagation

    - by jcmoney
    I was considering switching to Amazon EC2 to host my website to handle more traffic. It seems like I would have to update DNS records to point to the new server but I was wondering if there was a way to avoid having to wait for the new DNS record to propagate. Putting the code on both hosts would not work for me since the app writes to a database pretty frequently. I thought about just using a meta redirect or php redirect on the old host to redirect to the new host ip but was wondering if there's a better more accepted way of doing this.

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  • Cannot ping host stale ARP cache?

    - by gkchicago
    I am having a strange issue with a Debian (Lenny/Linux 2.6.26-2-amd64) that has been driving me nuts. On some machines within my network I can ping the host in question just fine, other times I have to manually hard-code the ARP ethernet address for the IP in order to establish connectivity. I've finally worked it down to somehow involving ARP. I just found how to fix it in a way that made it work but I'm looking for help explaining this issue and also I don't trust my fix to be permanent.. My thought process has been the following but I just can't make any sense out of it: Could it be the card? (Intel 82555 rev 4) Could it be because there are two network cards? (Default route is eth0) Could it be because of the network aliases? Lenny? AMD x86_64? Argh.. Thank you for any insight you might have // Ping doesn't go thru [gordon@ubuntu ~]$ ping 192.168.135.101 PING 192.168.135.101 (192.168.135.101) 56(84) bytes of data. --- 192.168.135.101 ping statistics --- 4 packets transmitted, 0 received, 100% packet loss, time 3014ms // Here's the ARP Table, sometimes the .151 address is good, sometimes it // also matches the Gateways MAC like .101 is doing right here. [gordon@ubuntu ~]$ cat /proc/net/arp IP address HW type Flags HW address Mask Device 192.168.135.15 0x1 0x2 00:0B:DB:2B:24:89 * eth0 192.168.135.151 0x1 0x2 00:0B:6A:3A:30:A6 * eth0 192.168.135.1 0x1 0x2 00:1A:A2:2D:2A:04 * eth0 192.168.135.101 0x1 0x2 00:1A:A2:2D:2A:04 * eth0 // Drop the bad arp table listing and set it manually based on /sbin/ifconfig [gordon@ubuntu ~]$ sudo arp -d 192.168.135.101 [gordon@ubuntu ~]$ sudo arp -s 192.168.135.101 00:0B:6A:3A:30:A6 // Ping starts going thru..?!? [gordon@ubuntu ~]$ ping 192.168.135.101 PING 192.168.135.101 (192.168.135.101) 56(84) bytes of data. 64 bytes from 192.168.135.101: icmp_seq=1 ttl=64 time=15.8 ms 64 bytes from 192.168.135.101: icmp_seq=2 ttl=64 time=15.9 ms 64 bytes from 192.168.135.101: icmp_seq=3 ttl=64 time=16.0 ms 64 bytes from 192.168.135.101: icmp_seq=4 ttl=64 time=15.9 ms --- 192.168.135.101 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3012ms rtt min/avg/max/mdev = 15.836/15.943/16.064/0.121 ms The following is my network config on this. gordon@db01:~$ /sbin/ifconfig eth0 Link encap:Ethernet HWaddr 00:0b:6a:3a:30:a6 inet addr:192.168.135.151 Bcast:192.168.135.255 Mask:255.255.255.0 inet6 addr: fe80::20b:6aff:fe3a:30a6/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:15476725 errors:0 dropped:0 overruns:0 frame:0 TX packets:10030036 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:18565307359 (17.2 GiB) TX bytes:3412098075 (3.1 GiB) eth0:0 Link encap:Ethernet HWaddr 00:0b:6a:3a:30:a6 inet addr:192.168.135.150 Bcast:192.168.135.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 eth0:1 Link encap:Ethernet HWaddr 00:0b:6a:3a:30:a6 inet addr:192.168.135.101 Bcast:192.168.135.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 eth1 Link encap:Ethernet HWaddr 00:e0:81:2a:6e:d0 inet addr:10.10.62.1 Bcast:10.10.62.255 Mask:255.255.255.0 inet6 addr: fe80::2e0:81ff:fe2a:6ed0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:10233315 errors:0 dropped:0 overruns:0 frame:0 TX packets:19400286 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1112500658 (1.0 GiB) TX bytes:27952809020 (26.0 GiB) Interrupt:24 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:387 errors:0 dropped:0 overruns:0 frame:0 TX packets:387 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:41314 (40.3 KiB) TX bytes:41314 (40.3 KiB) gordon@db01:~$ sudo mii-tool -v eth0 eth0: negotiated 100baseTx-FD, link ok product info: Intel 82555 rev 4 basic mode: autonegotiation enabled basic status: autonegotiation complete, link ok capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD gordon@db01:~$ sudo route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface localnet * 255.255.255.0 U 0 0 0 eth0 10.10.62.0 * 255.255.255.0 U 0 0 0 eth1 default 192.168.135.1 0.0.0.0 UG 0 0 0 eth0

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  • How to set target hosts in Fabric file

    - by ssc
    I want to use Fabric to deploy my web app code to development, staging and production servers. My fabfile: def deploy_2_dev(): deploy('dev') def deploy_2_staging(): deploy('staging') def deploy_2_prod(): deploy('prod') def deploy(server): print 'env.hosts:', env.hosts env.hosts = [server] print 'env.hosts:', env.hosts Sample output: host:folder user$ fab deploy_2_dev env.hosts: [] env.hosts: ['dev'] No hosts found. Please specify (single) host string for connection: When I create a set_hosts() task as shown in the Fabric docs, env.hosts is set properly. However, this is not a viable option, neither is a decorator. Passing hosts on the command line would ultimately result in some kind of shell script that calls the fabfile, I would prefer having one single tool do the job properly. It says in the Fabric docs that 'env.hosts is simply a Python list object'. From my observations, this is simply not true. Can anyone explain what is going on here ? How can I set the host to deploy to ?

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  • Vagrant (Virtualbox) host-only multiple node networking issue

    - by Lorin Hochstein
    I'm trying to use a multi-VM vagrant environment as a testbed for deploying OpenStack, and I've run into a networking problem with trying to communicate from one VM, to a VM-inside-of-a-VM. I have two Vagrant nodes, a cloud controller node and a compute node. I'm using host-only networking. My Vagrantfile looks like this: Vagrant::Config.run do |config| config.vm.box = "precise64" config.vm.define :controller do |controller_config| controller_config.vm.network :hostonly, "192.168.206.130" # eth1 controller_config.vm.network :hostonly, "192.168.100.130" # eth2 controller_config.vm.host_name = "controller" end config.vm.define :compute1 do |compute1_config| compute1_config.vm.network :hostonly, "192.168.206.131" # eth1 compute1_config.vm.network :hostonly, "192.168.100.131" # eth2 compute1_config.vm.host_name = "compute1" compute1_config.vm.customize ["modifyvm", :id, "--memory", 1024] end end When I try to start up a (QEMU-based) VM, it boots successfully on compute1, and its virtual nic (vnet0) is connected via a bridge, br100: root@compute1:~# brctl show 100 bridge name bridge id STP enabled interfaces br100 8000.08002798c6ef no eth2 vnet0 When the QEMU VM makes a request to the DHCP server (dnsmasq) running on controller, I can see the request reaches the controller because of the output on the syslog on the controller: Aug 6 02:34:56 precise64 dnsmasq-dhcp[12042]: DHCPDISCOVER(br100) fa:16:3e:07:98:11 Aug 6 02:34:56 precise64 dnsmasq-dhcp[12042]: DHCPOFFER(br100) 192.168.100.2 fa:16:3e:07:98:11 However, the DHCPOFFER never makes it back to the VM running on compute1. If I watch the requests using tcpdump on the vboxnet3 interface on my host machine that runs Vagrant (Mac OS X), I can see both the requests and the replies $ sudo tcpdump -i vboxnet3 -n port 67 or port 68 tcpdump: WARNING: vboxnet3: That device doesn't support promiscuous mode (BIOCPROMISC: Operation not supported on socket) tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on vboxnet3, link-type EN10MB (Ethernet), capture size 65535 bytes 22:51:20.694040 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:07:98:11, length 280 22:51:20.694057 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:07:98:11, length 280 22:51:20.696047 IP 192.168.100.1.67 > 192.168.100.2.68: BOOTP/DHCP, Reply, length 311 22:51:23.700845 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:07:98:11, length 280 22:51:23.700876 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:07:98:11, length 280 22:51:23.701591 IP 192.168.100.1.67 > 192.168.100.2.68: BOOTP/DHCP, Reply, length 311 22:51:26.705978 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:07:98:11, length 280 22:51:26.705995 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:07:98:11, length 280 22:51:26.706527 IP 192.168.100.1.67 > 192.168.100.2.68: BOOTP/DHCP, Reply, length 311 But, if I tcpdump on eth2 on compute, I only see the requests, not the replies: root@compute1:~# tcpdump -i eth2 -n port 67 or port 68 tcpdump: WARNING: eth2: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth2, link-type EN10MB (Ethernet), capture size 65535 bytes 02:51:20.240672 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:07:98:11, length 280 02:51:23.249758 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:07:98:11, length 280 02:51:26.258281 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:07:98:11, length 280 At this point, I'm stuck. I'm not sure why the DHCP replies aren't making it to the compute node. Perhaps it has something to do with the configuration of the VirtualBox virtual switch/router? Note that eth2 interfaces on both nodes have been set to promiscuous mode.

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  • Lightttpd:server.username for each host

    - by qichunren
    I want to config lighttpd for 2 users on my vps,and would like lighttpd start each user's own fastcgi demon,not root's own fastcgi demon. Rails + fastcgi + Lighttpd. Maybe I found server.username in lighttpd.conf can't work for each host config. For example: I have 2 users in my linux server:usera and userb $HTTP["host"] == "www.useraweb.com" { server.username = "usera" # some other config } $HTTP["host"] == "www.useraweb.com" { server.username = "userb" # some other config } ps -ef | grep ruby. I found all facgi demon is started by userb,It seems that the second server.username = 'userb' config cover the first config. Now How can I start two users's own fastcgi demon serve for lighttpd.

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