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  • OS X can connect to Windows machine, but can't access shared folders

    - by Bonnie
    I can create new folders on my Windows XP machine, set them to "shared". On my Mac, I pick Finder → Go → Connect to Server → smb://192.168.1.4 → Connect → Name / Password. It even shows me all the names of the newly created shared-folders on my PC, but when I try to actually connect to any of them I get connection failed, there was an error connecting Any idea on what would cause that? The fact that it successfully gets so far—to actually showing me my PC share-names—must mean I have 99% of this working correctly, i.e. the physical connection, the IP address, the user name, the password, etc. Still, I can't seem to access the folders themselves. I've tried this with my Windows XP firewall on/off, and Norton AntiVirus on/off. Same problem. Everything did work fine, 4 months ago. Were there any odd OS X or Windows updates released recently? I always apply them all. smbclient on the Mac does correctly find the XP machine, my XP user name, and accepts my XP password. I get the following from that smbclient command: Doing spnego session setup (blob length=16) server didn't supply a full spnego negprot Got challenge flags: ... Got NTLMSSP flags: ... Got NTLMSP flags: ... Domain=[XPMACHINE] OS=[Windows 5.1] Server=[Windows 2000 LAN Manager] tree connect failed: NT_STATUS_INSUFF_SERVER_RESOURCES I'm not sure why a standard XP box can't "supply a full spnego negprot". Whatever that means. Using XP's RegEdit to change my IRPStackSize from 11... to 13, 15, 20, 22... still gives that "NT_STATUS_INSUFF_SERVER_RESOURCES" error on the Mac.

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  • Mounting any Windows share from OS X 10.7.5 suddenly stopped working

    - by user2169619
    I have problem with mounting Windows network shares from my OS X 10.7.5 - it worked but it stopped and nothing helps and nothing in logs. Here what I get when trying to mount it manually: mount -t smbfs //10.0.0.7/d /tmp/test When doing sniffing with tshark - no packet it sent through and I get immediately return from the command: mount_smbfs: server connection failed: Unknown error: -1 Nothing in /var/log/syslog.log and /var/log/kern.log. The Finder does not work either - it throws an error that something is wrong (in czech thus I'm not sending the message here). I just cannot connect to any network shares. In virtual Windows 7 in Parallels Desktop I can connect successfully, but not within the network share (so the Win7 is behind OS X NAT) but only with its own IP address. The Windows server share is on the same network segment connected through switch. Any advice how to debug and what can be wrong? I spent hours to find solution on Google and here but no-one with this kind of problem and I do not know how to further debug it since there is no meaningful log / trace etc. I can ping 10.0.0.7 and I can connect to FTP server on 10.0.0.7 - the Windows machine (XP) has firewall completely turned off. The problem is that with tshark, I'm not seeing any packet sending to 10.0.0.7 so it's not even trying to reach the server.

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  • Disabling LDAP Signing on Windows PDC in Local Policy

    - by Golmaal
    I just tripped over my own feet it seems. Playing around on a Windows 2008 R2 server (set up as domain controller), I was intrigued by certain warning event (event id 2886) which says: "To enhance the security of directory servers, you can configure both Active Directory Domain Services (AD DS) and Active Directory Lightweight Directory Services (AD LDS) to require signed Lightweight Directory Access Protocol (LDAP) binds." So I thoughtlessly did some Googling and set the relevant policies which enforce LDAP signing. Now I don't remember but I may have done that using Local Policy. Now I have setup a pfsense box which must authenticate AD users via LDAP. While the firewall can communicate over secure channel, it is difficult to manage the same for other packages such as Squid and SquidGuard. So now I have to disable i.e. undo those policy changes. The problem is that they are greyed out! The policies in question are LDAP server signing and LDAP client signing. I don't remember what I did but when I access these policies from Local Policy editor on the server, they are set to "Require Signing" and are greyed out. The same policies can still be set via Default Domain Controller option in Group Policy editor. So how can I reset these greyed out policies? Thanks

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  • what to disable on Windows server? (by list of opened ports)

    - by javapowered
    I'm using HP DL360p Gen8 for HFT trading. I want to disable any network services I don't need cause I also want to try to disable Windows Firewall to test if this will improve perfomance. Could someone suggest what currently is turned on and can be likely turned off having ports list below? I need only RDP (also I drag & drop files via RDP) Proto Local Address Foreign Address State TCP 0.0.0.0:135 Term:0 LISTENING TCP 0.0.0.0:445 Term:0 LISTENING TCP 0.0.0.0:2301 Term:0 LISTENING TCP 0.0.0.0:2381 Term:0 LISTENING TCP 0.0.0.0:3389 Term:0 LISTENING TCP 0.0.0.0:47001 Term:0 LISTENING TCP 0.0.0.0:49152 Term:0 LISTENING TCP 0.0.0.0:49153 Term:0 LISTENING TCP 0.0.0.0:49154 Term:0 LISTENING TCP 0.0.0.0:49156 Term:0 LISTENING TCP 0.0.0.0:49157 Term:0 LISTENING TCP HIDEN:139 Term:0 LISTENING TCP HIDEN:3389 HIDEN:63373 ESTABLISHED TCP HIDEN:139 Term:0 LISTENING TCP HIDEN:139 Term:0 LISTENING TCP [::]:135 Term:0 LISTENING TCP [::]:445 Term:0 LISTENING TCP [::]:2301 Term:0 LISTENING TCP [::]:2381 Term:0 LISTENING TCP [::]:3389 Term:0 LISTENING TCP [::]:47001 Term:0 LISTENING TCP [::]:49152 Term:0 LISTENING TCP [::]:49153 Term:0 LISTENING TCP [::]:49154 Term:0 LISTENING TCP [::]:49156 Term:0 LISTENING TCP [::]:49157 Term:0 LISTENING UDP 0.0.0.0:68 *:* UDP 0.0.0.0:123 *:* UDP 0.0.0.0:161 *:* UDP 0.0.0.0:500 *:* UDP 0.0.0.0:4500 *:* UDP 0.0.0.0:5355 *:* UDP HIDEN:137 *:* UDP HIDEN:138 *:* UDP HIDEN:137 *:* UDP HIDEN:138 *:* UDP HIDEN:137 *:* UDP HIDEN:138 *:* UDP [::]:123 *:* UDP [::]:161 *:* UDP [::]:500 *:* UDP [::]:4500 *:* UDP [::]:5355 *:*

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  • Why are certain folders in my XP network share really, really slow?

    - by bikefixxer
    I have a workgroup set up with Windows XP. My file "server" is running XP Pro and the clients are running XP home. I've turned simple file sharing off on the server because certain clients need access to certain folders and not to others, and I want to keep it that way. Therefore, I've used the granular sharing/security settings to enable certain clients access to certain folders. I'm using the net use command in a batch file on the clients to add the share when they logon so it's always available via a mapped drive or a shortcut. On some clients "My Documents" points to the mapped drive, but all of the local and application settings stay local. Everything works well except for accessing a certain folder on the network. It contains a lot of random batch files and self-executable programs I use for diagnostics and what not, and nearly every time I open the folder the computer hangs for 15-60 seconds. This happens on every machine, including the server (but not nearly as often as the clients). I've searched high and low and cannot figure it out and it's driving me crazy. Here are all the things I've tried to no avail: Disabled firewall (XP) and anti-virus (ESET NOD32) Deleted any desktop.ini file I can find in the share Disabled "automatically search for network folders and printers" Disabled "remember each folder's view settings" Set HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer NoRecentDocsNetHood = 1 Tried with mapped drives and with UNC shortcuts Ran CHKDSK Removed Read-Only attribute from all folders (well, tried to remove, it always came back on with a half check) Added the server's static IP to the hosts file on the clients I've tried monitoring the server's performance to see if anything makes sense. Occasionally the issue coincides with a spike in pages/sec (memory) but not always. Other than that, everything else seems normal. The anti-virus would seem to be the most likely cause to me considering the batch files and what not, but it still hangs when it is completely disabled. I'm at a loss and if anyone can help me with this I'd greatly appreciate it!

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  • Why can't I connect to my router's config page with Windows 7?

    - by user17940
    I've got a Belkin wireless router, and just bought a new Dell computer with Windows 7 pre-installed. I can connect to the Internet and my home network just fine, but when I try to visit my router's configuration page at http://192.168.2.1, I get a "Connection was reset" error. Nothing I do will make the router's configuration page come up in my web browser. More background information: I could always get to the router's config page from my Windows XP machine. I never had any trouble prior to getting this Windows 7 computer. I can ping 192.168.2.1 successfully from my Windows 7 computer. My PC is connected to the router by a physical CAT5 cable, not via wireless. Every device connected to my router, including the new computer, can get to the Internet with no problem. Here are some things that did not solve the problem: I tried turning off IPV6 in Windows. I tried turning off my firewall and antivirus software I tried using https instead of http I tried disabling and then enabling the network connection in Windows I tried reverting my network card driver back to an older version I have tried both Firefox and Internet Explorer web browsers. Has anyone experienced something like this before, and solved it? Thanks a lot for your help!

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  • libvirt's dnsmasq does not respond to dns queries or provide dhcp

    - by Jeremy
    This is on Ubuntu 10.04 server, using KVM to run Ubuntu guests. This system has been working for a long time and I have not changed anything (other than applying security updates), but today I found dnsmasq no longer responds to requests. I cannot say how long this has been broken for me because I don't frequently use the NAT'd guests. So it could have started just after the last updates or some other event and I just now found it. I can connect to port 53 with telnet at 192.168.122.1. I've flushed ip-tables to be sure it wasn't firewall rules and that is not the problem. dnsmasq is running, virsh reports default network as stared. I can't find ANY information on troubleshooting libvirt dnsmasq except that it won't play well with other instances of dnsmasq, which is not the problem. I cannot even find where log entries might be for this service. Any ideas on where to look for more information? edit to add: I added another network and that one works fine. I guess I have a workaround but would still like to figure out how to troubleshoot this problem.

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  • Connect by Wifi to Sql Server from another computer

    - by Bronzato
    I try to connect by Wifi to Sql Server with Sql Server Management Studio from another computer but it failed. I have a computer with Windows Seven & Sql Server 2008 (lets say the server computer). Next to it, I have a fresh installed computer with Windows Seven & Sql Server Management Studio (let's say the client computer). What I do on the server computer: configure firewall by enabling port 1433 enabled network protocols (TCP/IP) inside Sql Server Configuration Manager checked "Allow remote connections to this server" on server properties in Sql Server Management. started Sql Server Browser restarted services (Sql Server Browser is stopped but I think it is not neccessary, isn't it?) Next, I successfully tested a ping on the port 1433 from my client computer with a tool named tcping (ex: tcping 192.168.1.4 1433). But I still cannot connect from my client computer to Sql Server on my other computer. Ok, something new on this problem: until now, I successfully connected to my "server computer" with Management Studio. What I do is typing the computer name in the server name field in the connection window of Management Studio. My previous (failed) attempt was to type the computer name followed by the instance of sql server (ex: COMPUTER_NAME\SQL2008). I don't know why I only have to type the computer name... Nevermind. Now my new challenge is to succeed connecting my VB6 application to this remote database located on my "computer server". I have a connection string for this but it failed to connect. Here is my connection string: "Provider=SQLOLEDB.1;Password=mypassword;User ID=sa;Initial Catalog=TPB;Data Source=THIERRY-HP\SQL2008" Any idea what's wrong? Thanks

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  • Proper web server setup

    - by DMin
    I just got myself a slicehost basic slice to play around with so I can learn how to setup web-servers. I have Ubuntu 10.04.2 installed on the server. I was able to successfully get the server up and running from scratch, these were the things I did - following this tutorial. I know this is probably just a starters tutorial, so, I was wondering if you guys can tell me what you like to do while setting up production servers. These are the steps that were followed : Update and Upgrade Ubuntu sudo apt-get install apache2 php5-mysql libapache2-mod-php5 mysql-server Backup a copy of and edit apache2.conf Set : 'ServerTokens Full' to 'ServerTokens Prod''ServerSignature On' to 'ServerSignature Off' Backup php.ini and then Change “expose_php = On” to “expose_php = Off” Restart Apache Install Shorewall firewall Configure Shorewall to only accept HTTP and SSH connections(in the rules file) Enable shorewall on startup Add the website to the server : sudo usermod -g www-data root sudo chown -R www-data:www-data /var/www sudo chmod -R 775 /var/www I want make this CommunityWiki but can't seem to find the option to do it. Please feel free to add any feedback on the processes and things I am doing right/wrong. Much appriciated, thanks! :)

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  • New SBS 2011 installation (not migration) in an existing 2008 R2 domain

    - by Tong Wang
    My current network setup has two servers: a Windows 2008 R2 with TMG 2010 as edge firewall (TMG server), a second 2008 R2 with DC, DNS and Hyper-V roles (DCDNS server). I was trying to install SBS 2011 as a child partition on DCDNS, first I installed SBS 2011 in English and did the migration successfully. However, later on, I found that I can't change the display language in SBS 2011 once it's installed (but the clients require a different language), so I had to re-install the SBS in a different language. It is during the re-installation that the problem came up: the migration can't be completed with some error message stating "can't access the source server". I re-ran the migration preparation tool, but it didn't make any difference. I wonder if it's because the source server can only be "migrated" once. Since I only need to setup a handful of users and computers, so I decided to do a new install of SBS and picked a different domain name. But I can't get the SBS to connect to LAN: it can't ping other servers, neither can other servers ping the SBS server. I've tried to stop the DC/DNS services on DCDNS and restart SBS, but with no difference. Anyone has idea how to fix this problem?

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  • Simple way to set up port knocking on Linux?

    - by Ace Paus
    There are well known benefits of Port Knocking utilities when utilized in combination with firewall IP table modification. Port Knocking is best used to provide an additional layer of security over other tools such as the OpenSSH server. I would like some help setting it up on a ubuntu server. I looked at some port knocking implementations here: PORTKNOCKING - A system for stealthy authentication across closed ports. IMPLEMENTATIONS http://www.portknocking.org/view/implementations fwknop looked good. I found an Android client here. And fwknop (both client and server) is in the ubuntu repos. Unfortunately, setting it up (on the server) looks difficult. I do not have iptables set up. My proficiency with iptables is limited (but I understand the basics). I'm looking for a series of simple steps to set it up. I only want to open the SSH port in response to a valid knock. Alternatively, I would consider other port knocking implementations, if they are much simpler to set up and the desired Linux and Android clients are available.

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  • Cherrypy web application won't communicate outside localhost via VPN

    - by Geoffrey Shea
    I'm trying to run a Python2.7/Cherrypy web server on Win 7 which is connected to a VPN to establish a dedicate IP address. (If I run the exact same application on Win XP connected to the VPN it works fine.) On Win 7 I tried configuring it to use port 8080, 8005, or 80 with no improvements. I turned off Windows Firewall altogether to test and there was no improvement. If I run Apache on the Win 7 machine on port 80 it works fine so I'm pretty sure it's not the VPN service or router. If I go to WhatismyIP.com it shows that I have the IP address being provided by the VPN. Here is the Python code, but I suspect the problem is the network configuration: import cherrypy class HelloWorld: def index(self): return "Hello world!3" index.exposed = True cherrypy.root = HelloWorld() cherrypy.config.update({"global":{ "server.environment": "production", "server.socketPort": 8005 } }) cherrypy.server.start() This will return a web page if I go to localhost:8005, but not if I go to the VPN IP address:8005 from another machine. As I said, if I run Apache on the Win 7 machine on port 80 I can see it at localhost:80 AND at the VPN IP address:80 from another machine. Thanks for any light you can shed! Geoffrey

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  • Thomson router reboots unexpectedly with an apparent remote connection attempt

    - by ChrisF
    I've got a weird problem. Every so often my rooter (a Thomson TG585 v8 running version 8.2.7.8 of it's firmware) reboots itself. It seems to be associated with this message in the event log: FIREWALL replay check (1 of 2): Protocol: ICMP Src ip: 183.178.144.177 Dst ip: xxx.xxx.xxx.xxx Type: Destination Unreachable Code: Host Unreacheable xxx.xxx.xxx.xxx is my external IP address 183.178.144.177 resolves to 183178144177.ctinets.com We've got a student from Hong Kong staying with us at the moment and the reboots seem coincidental with him starting up his laptop. I say this because a check on ctinets.com shows it to be based in Hong Kong, though our guest's laptop doesn't appear to have any software related to this company installed. I say "apparently" as he is running the Chinese version of Windows and his English doesn't cover technical subjects like this. I know this is an incoming message but I was assuming that it was in response to something on the student's laptop which is why the first thought was malware, but we've got anti virus on all the other machines and have run malwarebytes on his with a negative result so I don't think the problem is due to a virus or (known) trojan. What else can I do to stop this and identify the cause?

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  • Internet Explorer not working after establishing a SSTP VPN connection

    - by Massimo
    I have a problem which is constantly appearing on each Windows 7 computer I'm using, whenever I establish a SSTP VPN connection to a ForeFront TMG 2010 firewall; it only happens with SSTP connections, not PPTP/L2TP ones. The problem appears only if using a proxy server for Internet access; it doesn't happen when directly accessing the Internet (with or without NAT). It doesn't seem to depend on a specific proxy software being used (I've seen it happening with various ones). The problem is: as soon as I start the VPN connection, Internet Explorer can't access anything anymore. I'm not using the VPN connection as a default gateway, and I can succesfully ping the proxy server after the VPN connection is esatablished (and even telnet to its 8080 TCP port), so this is definitely not a routing problem. Also, the problem is specifically related to Internet Explorer: while it seems not able to connect to any site, other programs (such as FireFox) have no problem accessing the Internet through the same proxy. This behaviour can be easily reproduced on any Windows 7 computer (the service pack and patch level doesn't seem to matter at all). Have IE connect through a proxy, establish a SSTP VPN connection... and IE will just not work anymore until the VPN connection is dropped.

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  • SQL Server 2005 SE SP3 on Windows Server 2008 R2 x64 premature query disconnections

    - by southernpost
    New Dell PowerEdge R910, 4x8 Intel X7560, 192GB RAM, hardware NUMA, local RAID, Broadcom NetExtreme II multiport NIC, unteamed, TCP Offload disabled, RSS disabled, NetDMA disabled, Hyperthreading disabled. SQL Server 2005 SE x64 SP3 on Windows Server 2008 R2 EE x64. No other apps on server. Max Mem = 180GB, Max DOP = 4. Existing Windows Server 2003 R2 EE x64 app server connecting to Dell via firewall using SQL Authenticated logins. Symptoms: Intermittent errors at the app server: A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host.) Findings: Running queries from SSMS located on another machine within the same domain as the SQL Server run without error. SQLIO showed good performance. Windows and SQL logs show no related messages. Microsoft reveiwed PssDiag trace and stated that "We are not seeing timeouts from SQL Side. The queries bring run against the database are timing out within 9secs. This is a database connectivity error." "we can also see from the AttnSeq column that we are also not seeing any Attentions from the SQL Side.". Dell has confirmed that we are using the latest Broadcom drivers.

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  • setting up tracd behind mod_proxy?

    - by FilmJ
    I'm having trouble setting up mod_proxy and tracd. Seems almost all the search results for this problem take me to the built-in trac documentation page that mentions it as an option. I have several VirtualServers already running on the box in question, so running tracd on port 80 or 443 is not an option, but I do want to make my trac server accessible on this machine without exposing an additional port via the firewall. Making things even more complicated is that I have multiple trac repositories being served by the same instance of tracd, and so I want to set it up so: http://trac.abc.com is proxy'd to localhost:8000/projects/abcproject, and http://trac.def.com is proxy'd to localhost:8000/projects/defproject. Currently, the setup I have below results in 100% 403 errors. The server is running as www-data and the directory where all trac files are stored is owned by www-data, AND tracd (as show below) is running as www-data, so not sure where it's getting hung up. The relevant configuration on /var/apache2/sites-enabled/trac.abc.com: ProxyPass / http://localhost:8000/abcproject ProxyPassReverse / http://localhost:8000/abcproject The relevant configuration on /var/apache2/sites-enabled/trac.def.com: ProxyPass / http://localhost:8000/defproject ProxyPassReverse / http://localhost:8000/defproject The command used to instantiate tracd: tracd -a defproject,/var/www/vhosts/trac-common/users.htdigest,DEFProject -a abcproject,/var/www/vhosts/trac-common/users.htdigest,ABCProject -p 8000 -b localhost -e /var/www/vhosts/trac-common/projects If I access the site at http://localhost:8000/ everything works fine, but if I try to access via any of the proxy'd hosts I end up with 403 at every turn. I've used mod_proxy successfully as described above for other servers, such as couchdb, so maybe this has to do with the headers sent by tracd??

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  • Instructions to setup primary and only domain controller

    - by Robert Koritnik
    Where could I get best step by step instructions (with some simple explanations) how to setup domain controller on Windows Server 2008 R2 Server Core? I don't know what do I need? Do I need DNS as well and AD and so on and so forth. I don't know enough about these things, but I need to set them up to prepare development environment. I would also like to know how to configure firewall on DC machine, to make it visible on other machines because I've setup DC somehow but I can't connect to it... This is my HW config: Linksys internet router with DHCP my dev machine is Windows 7 my DC machine is a VM in my dev machine my dev machine has a hw network adapter to linksys and a virtual network adapter to DC DC machine has two network adapters: one to linksys (to be internet connected so it can be updated etc.) and one to host (my dev Win7 machine) Edit My development machine should access domain controller and logon using domain credentials. Development machine would access internet directly via Linksys router. My domain controller machine would only serve authentication (and if I'm able to configure it right) should also have Active Directory Federation Services in a workable condition. I hope this is a bit more clear now. At least a small bit.

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  • No LAN and SMB access, and Explorer not responsive, when using a second connection

    - by Lorenzo
    I apologize if this is a duplicate question, I know that there are several questions about multiple connection (LAN + LAN and LAN + dialup) but I haven't been able to find one that fits my scenario. I'm still using Windows XP on my corporate laptop, and I'm connected to the corporate LAN via Ethernet. The LAN NIC has a public IP address, although not accessible externally, obtained via the corporate DNS server. This connection is firewalled and requires a proxy to access Internet. To access Internet sites blocked by the corporate firewall, I use my smartphone via USB tethering. It is seen as a new LAN interface, and I get a private IP address (class 192.168..). There are two problems: The LAN is not accessible, as the default gateway goes to the tethering NIC. I'd like to solve this, but I can live with it. My PC becomes unresponsive if I use Windows Explorer to view local files, or even when I open the start menu. I guess that this is caused by attemps to connect to a mapped network drive. But I disabled the "Client for Microsoft Networks" in the tethering NIC. Why the system still hangs? Of course if I disable the Ethernet NIC, Explorer stops hanging. If you need further details, add a comment. Thanks!

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  • Cannot Connect To VMWare Guest OS Using Either RDP or VNC

    - by Humanier
    I have a PC (Windows XP SP3) with VMWare Workstation 7 installed. The VMWare hosts Windows Server 2003 Enterprise Edition R2. RealVNC (4.1.3) is installed on both OS'es. Both of them use Hamachi2. Host OS (WinXP) also runs ZoneAlarm Firewall. Hamachi network is set as trusted. My goal is to allow RDP and VNC connections to be made to the guest OS (Windows Server 2003). Both options work absolutely fine if I connect from the host OS. However I have problems when other computers from our Hamachi network try to connect the guest OS (Win2K3). RDP connections. RDP window opens, shows black content and after 15-20 seconds displays following error: RealVCN connections. Users are able to connect but all they see is a black screen inside VNC window. At the same their input (keystrokes or mouse moves/clicks) are visible when looking at the console window of the Win2K3. I really appreciate any ideas on how to resolve the mentioned problems.

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  • SQL Server Instance login issue

    - by reallyJim
    I've just brought up a new installation of SQL Server 2008. I installed the default instance as well as one named instance. I'm having a problem connecting to the named instance from anywhere besides the server itself with any user besides 'sa'. I am running in mixed mode. I have a login/user that has a known username. Using that user/login, I can properly connect when directly on the server. When I attempt to login from anywhere else, I recieve a "Login failed for user ''", with Error 18456. In the log file in the server, I see a reason that doesn't seem to help: "Reason: Could not find a login matching the name provided.". However, that user/login DOES exist, as I can use it locally. There are no further details about the error. Where can I start to find something to help me with this? I've tried deleting and recreating the user, as well as just creating a new one from scratch--same result, locally fine, remotely an error. EDIT: Partially Resolved. I'm now passed the base issue--the clients were trying to connect via the default instance. I don't know why. So, once proper ports were opened in the firewall, and a static port assigned to the named instance, I can now connect--BUT ONLY if I specify the connection as Server,Port. SQLBrowser is apparently not helping/working in this case. I've verified it IS running, and done a stop/restart after my config changes, but no difference yet.

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  • Having problems VPN'ing into our Windows server network.

    - by Pure.Krome
    Hi folks, When two people (on their notebooks) try to VPN to our office, only the first user gets a connection. the second user always times out. Is it possible for VPN to allow two or more people, using / sharing the same EXTERNAL PUBLIC IP to connect/authenticate? Now for some specifics (cause those two statements are very broad). I'm not in the IT Dept. I'm a developer. Our IT Dept don't really care (sigh) so it's up to me to fix this crap. Our office is all Microsoft shop stuff - servers and clients. We also have a firewall (watchguard brand?) and some other crazy setups (yes i know, it's very vague :( ). So i'm wondering - is it possible for multiple users, from the same public IP, to connect via VPN to a windows server? i'm under the impression - yes. But it is possible that this only happens when the clients (who are all behind the single, public IP .. otherwise they will have their OWN ip's) need to have UPnP running or something? this is killing me and i need to start asking the right questions cause these guys don't know what they are doing and i can't work without this happening. I know this is a vauge question with so many 'if-what's-etc' but maybe some questions/suggestions from you guys might start to lead to solving this problem. EDIT: Network Connection: WAN Miniport (PPTP)

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  • Moving Microsoft Exchange server to the private network.

    - by Alexey Shatygin
    In one of the offices, we have a 50-computers network, which had only one server machine: Windows 2003 Server Microsoft ISA Server Microsoft Exchange 2003 This server worked as a gateway (proxy server), mail server, file server, firewall and domain controller. It had two network interfaces, one for WAN (let's say 222.222.222.222) and one for LAN (192.168.1.1). I set up a Linux box to be the gateway (without a proxy), so the Linux box now has the following interfaces: 222.222.222.222 (our external IP, we removed it from the Windows machine) and 192.168.1.100 (internal IP), but we need to keep the old Windows server as a mail server and a proxy for some of our users, until we prepare another Linux machine for that, so I need the mail server on that machine to be available from the Internet. I set up iptables rules to redirect all the incoming connections on the 25th and 110th ports of our external IP to 192.168.1.1:25 and 192.168.1.1:110 and when I try to telnet our SMTP service telnet 222.222.222.222 25 I get the greetings from our windows server's (192.168.1.1) SMTP service, and that's works fine. But when I telnet POP3 service telnet 222.222.222.222 110 I only get the blank black screen and the connection seem to disappear if I press any button. I've checked the ISA rules - everything seems to be the same for 110th and 25th ports. When I telnet on 110th ports of our Windows server from our new gateway machine like this: telnet 192.168.1.1 110 I get the acces to it's POP3 service: +OK Microsoft Exchange Server 2003 POP3 server version 6.5.7638.1 (...) ready. What sould I do, to make the POP3 service available through our new gateway?

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  • All application passwords lost on Windows 7

    - by Rynardt
    A couple of days ago I changed my Windows 7 login password. My laptop is on my company's domain, so password changes are done over the internal network. Since changing the password I noticed that all my saved Chrome passwords are missing. Also Skype, Windows Live, Internet Explorer and Outlook lost their saved passwords. I guess there could be more applications with lost passwords, but I have not opened them yet. This makes me think that most applications saves their passwords to a general password vault on the Windows system and this vault got somehow corrupted when I changed my domain login password for windows. Do anyone have any idea of how to fix this and prevent it from happening again? EDIT : More Info I do development work at the office, so most of the time I bypass the firewall and connect directly to the internet gateway. Now and then I would connect to the company wifi network to do printing and access files on a NAS. So by default my laptop does not connect to the wifi hotspot. On this occasion to update the password, I had to connect to the wifi. So referring to the comment by OmnipotentEntity below, could this have happened when the system rebooted without a connection to the network as the laptop does not auto connect to the wifi hotspot?

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  • Iptables rules, forward between two interfaces

    - by Marco
    i have a some difficulties in configuring my ubuntu server firewall ... my situation is this: eth0 - internet eth1 - lan1 eth2 - lan2 I want that clients from lan1 can't communicate with clients from lan2, except for some specific services. E.g. i want that clients in lan1 can ssh into client in lan2, but only that. Any other comunication is forbidden. So, i add this rules to iptables: #Block all traffic between lan, but permit traffic to internet iptables -I FORWARD -i eth1 -o ! eth0 -j DROP iptables -I FORWARD -i eth2 -o ! eth0 -j DROP # Accept ssh traffic from lan1 to client 192.168.20.2 in lan2 iptables -A FORWARD -i eth1 -o eth2 -p tcp --dport 22 -d 192.168.20.2 -j ACCEPT This didn't works. Doing iptables -L FORWARD -v i see: Chain FORWARD (policy DROP 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 33 144 DROP all -- eth1 !eth0 anywhere anywhere 0 0 DROP all -- eth2 !eth0 anywhere anywhere 23630 20M ACCEPT all -- any any anywhere anywhere state RELATED,ESTABLISHED 0 0 ACCEPT all -- eth1 any anywhere anywhere 175 9957 ACCEPT all -- eth1 any anywhere anywhere 107 6420 ACCEPT all -- eth2 any anywhere anywhere 0 0 ACCEPT all -- pptp+ any anywhere anywhere 0 0 ACCEPT all -- tun+ any anywhere anywhere 0 0 ACCEPT tcp -- eth1 eth2 anywhere server2.lan tcp dpt:ssh All packets are dropped, and the count of packets for the last rule is 0 ... How i have to modify my configuration? Thank you. Regards Marco

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  • Hadoop streaming job on EC2 stays in "pending" state

    - by liamf
    Trying to experiment with Hadoop and Streaming using cloudera distribution CDH3 on Ubuntu. Have valid data in hdfs:// ready for processing. Wrote little streaming mapper in python. When I launch a mapper only job using: hadoop jar /usr/lib/hadoop/contrib/streaming/hadoop-streaming*.jar -file /usr/src/mystuff/mapper.py -mapper /usr/src/mystuff/mapper.py -input /incoming/STBFlow/* -output testOP hadoop duly decides it will use 66 mappers on the cluster to process the data. The testOP directory is created on HDFS. A job_conf.xml file is created. But the job tracker UI at port 50030 never shows the job moving out of "pending" state and nothing else happens. CPU usage stays at zero. (the job is created though) If I give it a single file (instead of the entire directory) as input, same result (except Hadoop decides it needs 2 mappers instead of 66). I also tried using the "dumbo" Python utility and launching jobs using that: same result: permanently pending. So I am missing something basic: could someone help me out with what I should look for? The cluster is on Amazon EC2. Firewall issues maybe: ports are enabled explicitly, case by case, in the cluster security group.

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