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  • How do I add a VMware ESXi Host to Microsoft Virtual Machine Manager?

    - by user63250
    I am trying to manage virtual machines running on a VMware ESXi host using Microsoft System Center Virtual Machine Manager. I was able to add the ESXi machine using the "Add VMware VirtualCenter server" option, but can't access any of the VMs on the datastore associated with this ESXi server. The datastore of the ESXi box is showing up with the correct name, but it won't let me see any of the VMs that have already been created; I get "There are no virtual machines on this host." Because I couldn't get any of the existing virtual machines to show up, I tried creating some new ones. When using VMM to connect to ESXi and create new VMs, I get the following error messages in the "rating explanation" section: The virtualization software on the selected host does not support virtual hard disks on an IDE bus. and The virtualization software on the host XXXXXX does not support the creation of dynamic virtual hard disk. Any ideas on why I can't manage existing machines and why I can't create new ones? The existing machines were created in vSphere. I should note that the ESXi server and the server running SCVMM are both on the same domain. I should also note that although the ESXi box has been added as a VirtualCetner server, when I try to add it through the "Add Host" option, I get an error message saying "Virtual Machine Manager cannot complete the VirtualCenter action on server EXSi because of the following error: The operation is not supported on the object."

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  • 16-bit MS-DOS Subsystem: csrss.exe

    - by Wesley
    Hi all, I just booted up my Samsung N120 netbook (with Windows XP Home SP3) and a dialog box came up with a command prompt window behind it. The dialog box is titled 16 bit MS-DOS Subsystem and the message is as follows: C:\DOCUME~1\SAMSUNG\csrss.exe The NTVDM CPU has encountered an illegal instruction. CS:0544 IP:0117 OP:63 00 64 00 34 Choose 'Close' to terminate the application. This only started on my most recent boot-up. One thing to note is that when I downloaded the Dropbox installer and opened it up, Panda Cloud Antivirus detected a suspicious file, which was csrss.exe and "neutralized it." However, an actual virus or trojan was not detected immediately before the file was detected and neutralized. Just under two weeks ago, a trojan and two viruses were detected for some odd reason. (I only went to website I knew and I do not torrent or browse adult sites.) Anyhow, the two viruses came up in temporary files and the trojan was "neutralized." Anyways, the main question is: How can I repair the csrss.exe file such that Windows XP starts up properly? A screenshot could be posted upon request. Thanks in advance!

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  • monitoring a /21 for potential bad guys with snort and port mirroring

    - by Adeodatus
    Hi all, I want/need to start monitoring our network a bit better. Its an odd network in that it comprises 2 /22 public IPs and a slew of private admin IPs. I do have one point in the network where it all comes together and I can turn on port mirroring on the catalyst. From that port, I'd like to turn up a box running various utilities. Snort is high on my list but it'd be nice to also get some networking statistics with something like Netflow. So, what are peoeple's thoughts. I can turn up a box needed for this with a bit of ease. We have the hardware available. What should I run? I'd love to know what kind of nasty things are potentially going on but I'd also like to see statistics on what people are doing on the network so I can better tweak our systems to handle it better and improve performance. I'm open so please, give me some ideas to go along with what I've got.

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  • Looking for updated BIOS for '99 Gateway in order to format/recognize >127 GB HD

    - by Jeff
    I have a '99 Gateway that's apparently too old for even Gateway to acknowledge it exists. Want to use it as a media hub and put in a 320GB HD, but it will not format above 127GB even running Win XP SP3. Read somewhere that upgrading the BIOS may do the trick, but I can't find the correct BIOS, and GW has been no help. Hoping I can just upgrade the BIOS, which is 11 years old. Any help would be much appreciated! I don't know where to look, and searches have been fruitless. System info: OS Name Microsoft Windows XP Home Edition Version 5.1.2600 Service Pack 3 Build 2600 OS Manufacturer Microsoft Corporation System Name xxxx System Manufacturer Gateway System Model TABOR_II System Type X86-based PC Processor x86 Family 6 Model 7 Stepping 3 GenuineIntel ~596 Mhz BIOS Version/Date Intel Corp. 4W4SB0X0.15A.0015.P10, 9/28/1999 SMBIOS Version 2.1 BIOS info (from a free app I located): BIOS Type: Phoenix BIOS Date: September 28th 1999 BIOS ID: 4W4SB0X0.15A.0015.P10.9909281445-None BIOS OEM: 4W4SB0X0.15A.0015.P10 Chipset: Intel 440BX/ZX rev 3 SuperIO: SMC 70x or 80x rev 0 at port 0370 Manufacturer: Gateway Motherboard: WS440BX

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  • port forwarding with VirtualBox

    - by Argh
    I have a virtualbox VM running ubuntu. The Ubuntu guest is running a web server which listens on port 3000 (http://127.0.0.1:3000) The host machine is windows vista. I have configured port forwarding using VBoxManage. If I query the config using VboxManage getextradata "MyMachine", I get Key: GUI/AutoresizeGuest, Value: on Key: GUI/Fullscreen, Value: off Key: GUI/LastCloseAction, Value: shutdown Key: GUI/LastWindowPostion, Value: 9,34,640,529,max Key: GUI/MiniToolBarAlignment, Value: bottom Key: GUI/MiniToolBarAutoHide, Value: off Key: GUI/SaveMountedAtRuntime, Value: yes Key: GUI/Seamless, Value: off Key: GUI/ShowMiniToolBar, Value: yes Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/guesthttp/GuestPort, Value: 3000 Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/guesthttp/HostPort, Value: 3000 Key: VBoxInternal/Devices/pcnet/0/LUN#0/Config/guesthttp/Protocol, Value: TCP This looks like it should work... However when I try to access the web server from the host machine (windows box) I dont get a response. I ran a netstat on the windows box and nothing appears to be listening on port 3000 which explains why forwrding isnt working. Note that I have already tested with my firewall switched off... The version of VirtualBox I am using is 3.1.4 Any ideas?

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  • Openconnect for Cisco VPN doesn't recognize private key file - asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag

    - by Alexander Skwar
    I'm trying to use my Synology DS212 NAS box also act as VPN gateway to my companies VPN. Sadly, they only use Cisco ASA and to complicate stuff even further, we've got to use personal certificates (which is of course more secure, but more complicate to get going…). So I compiled OpenConnect v4.06 from http://www.infradead.org/openconnect/. As a very basic test, I tried to build a connection by manually invoking openconnect, passing along the key and cert files, like so: /lib/ld-linux.so.3 --library-path /opt/lib \ /opt/openconnect/sbin/openconnect \ --certificate=$VPN_CFG/alexander.crt \ --sslkey=$VPN_CFG/alexander.key \ --cafile=$VPN_CFG/Company_VPN_CA.crt \ --user=alexander --verbose <ip>:443 It fails :( Attempting to connect to <ip>:443 Using certificate file $VPN_CFG/alexander.crt Using client certificate '/[email protected]/OU=Company VPN' 5919:error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag:tasn_dec.c:1315: Loading private key failed (see above errors) Loading certificate failed. Aborting. Failed to open HTTPS connection to <ip> Failed to obtain WebVPN cookie When I run the same command with the same cert/key files on a Ubuntu 12.04 box, it works: openconnect \ --certificate=$VPN_CFG/alexander.crt \ --sslkey=$VPN_CFG/alexander.key \ --cafile=$VPN_CFG/Company_VPN_CA.crt \ --user=alexander --verbose <ip>:443 Attempting to connect to <ip>:443 Using certificate file $VPN_CFG/alexander.crt Extra cert from cafile: '/CN=Company AG VPN CA/O=Company AG/L=Zurich/ST=ZH/C=CH' SSL negotiation with <ip> Server certificate verify failed: self signed certificate Certificate from VPN server "<ip>" failed verification. Reason: self signed certificate Enter 'yes' to accept, 'no' to abort; anything else to view: yes Connected to HTTPS on <ip> GET https://<ip>/ […] Well… The error on the NAS is this: 5919:error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag:tasn_dec.c:1315: Any ideas, what's causing this? On Syno, I use OpenConnect 4.06. On Ubuntu, I just compiled and installed to a custom location OpenConnect 4.06 as well. Thanks, Alexander

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  • HP Storageworks 448 tape drive input/output error with Ubuntu

    - by Dan D
    I'm trying to set a backup to tape of a machine using flexbackup. However any attempt to write to the tape drive (via either flexbackup or just tar) results in "/dev/st0: Input/output error" The machine seems to recognise the drive (HP Storageworks Ultrium 448) and that there's a tape in it and "mt status" seems to work... "mt -f /dev/st0 rewind" or "erase" throw no errors... root@stor001:/# mt status SCSI 2 tape drive: File number=0, block number=0, partition=0. Tape block size 0 bytes. Density code 0x42 (LTO-2). Soft error count since last status=0 General status bits on (41010000): BOT ONLINE IM_REP_EN root@stor001:/# cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: HL-DT-ST Model: DVDRAM GSA-4084N Rev: KS02 Type: CD-ROM ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 03 Lun: 00 Vendor: HP Model: Ultrium 2-SCSI Rev: S65D Type: Sequential-Access ANSI SCSI revision: 03 "tell" does however root@stor001:/# mt -f /dev/st0 tell /dev/st0: Input/output error Based on a forum post I found, I tried: root@stor001:/# dd if=/dev/zero of=/dev/nst0 bs=1024 count=10 10+0 records in 10+0 records out 10240 bytes (10 kB) copied, 5.0815 s, 2.0 kB/s which gave the person on the forum an error but seems to work for me. If anyone has any suggestions, I'm all ears...

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  • PXE bootable image for terminal server?

    - by HeavenCore
    We have 300 windows xp machines on cruddy old hardware across the company. With extended support for XP ending April next year we're looking into our options. Couple of options: Replace the 300 PC's with full windows 7 PC's (£100k +?) - no use of terminal server (our current model) Replace the 300 PC's with off the shelf thin clients & make use of our terminal server - Cheaper clients but Terminal Server CALS required? Keep the 300 PC's, replace windows XP with linux thin client capable of connecting to our terminal server - no hardware costs, just Terminal Server CALS required? Keep the 300 PC's - remove hard drives and make use of a PXE bootable "thin client" to connect to our terminal server If we were to choose option 4, what our the options out there? Is there any official PXE bootable thin clients for terminal server out there? If so, what are the licence requirements? Is there options we haven’t considered? There must be lots of companies out there in this situation - curious what the current trend is for this problem? Edit: Option 5 - Create a bootable Windows PE image with RDP auto start and use that as a "thin client" for our terminal server - is Windows PE licence free in such a model?

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  • pfsense 2.0.1 Firewall SMB Share not showing up under network

    - by atrueresistance
    I have a freenas NAS with a SMB share running at 192.168.2.2 of a 192.168.2.0/28 network. Gateway is 192.168.2.1. Originally this was running on a switch with my LAN, but now having upgraded to new hardware the Freenas has it's own port on the firewall. Before the switch the freenas would show up under Network on a windows 7 box and an OSX Lion box as freenas{wins} or CIFS shares on freenas{osx} so I know it doesn't have anything do to with the freenas. Here are my pfsense rules. ID Proto Source Port Destination Port Gateway Queue Schedule Description PASS TCP FREENAS net * LAN net 139 (NetBIOS-SSN) * none cifs lan passthrough PASS TCP FREENAS net * LAN net 389 (LDAP) * none cifs lan passthrough PASS TCP FREENAS net * LAN net 445 (MS DS) * none cifs lan passthrough PASS UDP FREENAS net * LAN net 137 (NetBIOS-NS) * none cifs lan passthrough PASS UDP FREENAS net * LAN net 138 (NetBIOS-DGM) * none cifs lan passthrough BLOCK * FREENAS net * LAN net * * none BLOCK * FREENAS net * OPTZONE net * * none BLOCK * FREENAS net * 192.168.2.1 * * none PASS * FREENAS net * * * * none BLOCK * * * * * * none I can connect if I use \\192.168.2.2 and enter the correct login details. I would just like this to show up on the network. Nothing in the log seems to be blocked when I filter by 192.168.2.2. What port am I missing for SMB to show up under the network and not have to connect by IP? ps. Do I really need the LDAP rule?

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  • Linux Kernel Packet Forwarding Performance

    - by Bob Somers
    I've been using a Linux box as a router for some time now. Nothing too fancy, just enabling forwarding in the kernel, turning on masquerading, and setting up iptables to poke a few holes in the firewall. Recently a friend of mine pointed out a performance problem. Single TCP connections seem to experience very poor performance. You have to open multiple parallel TCP connections to get decent speed. For example, I have a 10 Mbit internet connection. When I download a file from a known-fast source using something like the DownThemAll! extension for Firefox (which opens multiple parallel TCP connections) I can get it to max out my downstream bandwidth at around 1 MB/s. However, when I download the same file using the built-in download manager in Firefox (uses only a single TCP connection) it starts fast and the speed tanks until it tops out around 100 KB/s to 350 KB/s. I've checked the internal network and it doesn't seem to have any problems. Everything goes through a 100 Mbit switch. I've also run iperf both internally (from the router to my desktop) and externally (from my desktop to a Linux box I own out on the net) and haven't seen any problems. It tops out around 1 MB/s like it should. Speedtest.net also reports 10 Mbits speeds. The load on the Linux machine is around 0.00, 0.00, 0.00 all the time, and it's got plenty of free RAM. It's an older laptop with a Pentium M 1.6 GHz processor and 1 GB of RAM. The internal network is connected to the built in Intel NIC and the cable modem is connected to a Netgear FA511 32-bit PCMCIA network card. I think the problem is with the packet forwarding in the router, but I honestly am not sure where the problem could be. Is there anything that would substantially slow down a single TCP stream?

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  • Using Virtualbox Bridge Networking fails connection from Guest OS to Oracle XE running on Host

    - by Licheng
    I am trying to make a JDBC connection from a VirtualBox Ubuntu Guest OS to an Oracle XE database running o Host. However, the connection is refused. Here are the details of my environment: VirtualBox: 4.1.4 Host OS: Windows 7 Guest OS: Ubuntu server 11.4 Networking mode: Bridged network Oracle XE database running on Host Issue: WebLogic server runs on the Ubuntu virtualbox. It attempts to connect to an Oracle XE database running on the Host OS (windows 7) with listening port 1521. On the Guest OS (Ubuntu), I am able to ping the Host computer from the Guest OS. However, when I configured a JDBC data source on the WebLogic server on the Guest OS to connect to the Oracle XE, connection took a long time, and eventually I received an "IO Exception: The Network Adapter could not establish the connection". When I tried "telnet host-ip 1521", no connection was established. With Bridge networking, I can make bi-directional connections between the host and the guest OS (e.g. connection through ssh and ftp). Is there anything I missed in the setup of Bridge networking and the guest/host OS? Note that I was able to make the same connection within a normal networking environment (i.e. not using virtual box). I am not sure whether Bridge networking is a good option for the work described above. Should I use host-only networking mode? If so, any specific configurations I need to perform? I read through the Virtual box document on setting up the host-only network, however, it lacks of details. I followed the procedures described in the manual, and couldn't even connect to the host. Could some experts here enlighten me on this issue? Much appreciated. Licheng

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  • AWS lighttpd: Sending a copy of requests to test.

    - by Martin
    I have a load balanced service on AWS. So the ELB evenly distributes the load across my servers. Each server is running lighttpd that does logging and forwards the requests to my service (on the same machine). I have written a new version of the service. It is installed and running on an EC2 machine test1 (basically a mirror of our current server but the new service running instead of the original) and I have done some preliminary tests that look good. But what I would like to do is mirror a fraction of incoming traffic to the new version of the service so I can do some comparisons between an original version and the new version based on real traffic. Thus I was thinking I could modify one box behind the ELB to duplicate its traffic to the test1. I was thinking I could modify the configuration of lighttpd so that each request is mirrored/duplicated. i.e. the original service keeps responding as before but a mirror request is sent to test1 but the reply is just dropped). Unfortunately I have not been able to work this out. Any ideas on how I could mirror the requests from one box to itself and test1. Or any other ideas for testing.

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  • How can I view the binary contents of a file natively in Windows 7? (Is it possible.)

    - by Shannon Severance
    I have a file, a little bigger than 500MB, that is causing some problems. I believe the issue is in the end of line (EOL) convention used. I would like to look at the file in its uninterpreted raw form (1) to confirm the EOL convention of the file. How can I view the "binary" of a file using something built in to Windows 7? I would prefer to avoid having to download anything additional. (1) My coworker and I opened the file in text editors, and they show the lines as one would expect. But both text editors will open files with different EOL conventions and interpret them automagically. (TextEdit and Emacs 24.2. For Emacs I had created a second file with just the first 4K bytes using head -c4096 on a linux box and opened that from my windows box. I attempted to use hexl-mode in Emacs, but when I went to hexl-mode and back to text-mode, the contents of the buffer had changed, adding a visible ^M to the end of each line, so I'm not trusting that at the moment. I believe the issue may be in the end of line character(s) used. The editors my coworker and I tried (1) just automagically recognized the end of line convention and showed us lines. And based on other evidence I believe the EOL convention is carriage return only. (2) return only. are able to recognize and To know what is actually in the file, I would like to look at the binary contents of the file, or at least a couple thousand bytes of the file, preferablely in Hex, though I could work with decimal or octal. Just ones an zeros would be pretty rough to look at.

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  • Windows Server 2008 RAID10

    - by JT
    Hello All, I am building a storage system for myself. I have a 16 bay SATA chasis and right now I have 1 x 500GB SATA for booting 8 x 1.5TB for data. 3Ware 9500S-8 RAID card where these 8 drives above are connected to. I am used to linux, but not in the RAID department. I have Windows experience too. What I am looking for is something that I can just let sit, be reliable and use for other items as well. (Like running test websites, Apache, MySQL, etc). This box is private on a Class-C subnet. My thought is to at least consider Windows Server 2008. I especially like the potential for NON-GUI Mode. Can Windows Server 2008 do a Software RAID 10 out of the box? Software RAID is better performance and better in case the raid needs to be moved to another machine? I just want to SCP files, so OpenSSH running on it? Can one install the GUI, but not use it unless they get in a bind? Is Windows a good idea or should I stick to a Linux Software RAID or FreeBSD + ZFS?

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  • Choosing the right TV tuner - USB or PCI TV tuners, hardware/software, DVB? Hybrid/combo/analog?

    - by Nucleon
    Greetings, I'll start with some background information so you know what I'm trying to accomplish and then get to my question. I work at a Television station in the US and we are working on setting up an online DVR/Podcast system for all of our newscasts. So basically we would be recording every newscast in HD, encoding it to flv/h.264 for viewing in a browser on flash compatible and iphone/ipad devices, eventually migrating to WebM when it's browser compliant. This task is theoretically pretty simple as it all it involves is a TV tuner device and a program like VLC, MythTV or whatever to schedule and dump it to a file, encode it with VLC/FFMPEG and push it to the streaming server. Now to the hardware, in order to accomplish that task, should I use an internal PCI tuner or a USB 2.0 tuner? Is there a difference? The bus speeds of both are not too far apart, and is the bus speed really relevant in this case? Does it matter if the device has a hardware encoder or a software encoder? On many sites the USB was recommended for ease of set up and use, but would it overly task a processor, or is that not a concern as long as it's a decent PC (at least duo core, 6gb ram). What's the difference between the stick USB and the Box USBs? To my understanding analog is basically gone in the US, so we would want a hybrid or combo tuner correct? How do those differ from DVB? Are there any other features or concepts which I am missing which may influence the recommended product. It would be ideal if the device which could work in both Linux and a Windows environment, to my knowledge most Hauppauge are? Example 1: PCI Hauppage http://www.newegg.com/Product/Product.aspx?Item=N82E16815116033 Example 2: USB 2.0 Box http://www.newegg.com/Product/Product.aspx?Item=N82E16815116029 Example 3: USB 2.0 Stick http://www.newegg.com/Product/Product.aspx?Item=N82E16815116031 Any guidance from the Superusers would be much appreciated!

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  • NIS: which mechanism hides shadow.byname for unpriviledged users?

    - by Mark Salzer
    On some Linux box (SLES 11.1) which is a NIS client I can do as root: ypcat shadow.byname and get output, i.e. some lines with the encrypted passwords, amongst other information. On the same Linux box, if I run the same command as unpriviledged user, I get No such map shadow.byname. Reason: No such map in server's domain Now I am surprised. My good old knowlege says that shadow passwords in NIS are absurd because there is no access control or authentication in the protocol and thus every (unpriviledged) user can access the shadow map and thereby obtain the encrypted passwords. Obviously we have a different picture here. Unfortunately I don't have access to the NIS server to figure out what is happening. My only guess is that the NIS master gives the map only to clients conection from a priviledged port (1024), but this is only an uneducated guess. What mechanisms are there in current NIS implementations to lead to a behavior like the above? How "secure" are they? Can the be circumvented easily? Or are shadow passwords in NIS as secure as the good old shadow files?

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  • Server appears to have lost ability to read PHP files with LAMP

    - by OtagoHarbour
    I have LAMP installed on a PC that is running Ubuntu 11.10. LAMP was running fine but I had to restart the PC because Unity was messing up (as it often does) and the tool bar had disappeared. When it started up, I was unable to fire up any php files. I have a file index.php in /var/www. It is owned by www-data as is the directory that it is in. The LAN address of the server is 192.168.1.10. However when I type 192.168.1.10 into the URL box on Mozilla FireFox, I get Unable to connect Firefox can't establish a connection to the server at 192.168.1.10 This server is connected to another server on the LAN that has the LAN address 192.168.1.4. When I type 192.168.1.4 into the Firefow URL box on 192.168.1.10, I see the display associated with index.php on 192.168.1.4. Why can it not display its own /var/www/index.php? Any assistance with this would be greatly appreciated, Peter.

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  • Apache2 on Raspbian: Multiviews is enabled but not working [closed]

    - by Christian L
    I recently moved webserver, from a ubuntuserver set up by my brother (I have sudo) to a rasbianserver set up by my self. On the other server multiviews worked out of the box, but on the raspbian it does not seem to work althoug it seems to be enabled out of the box there as well. What I am trying to do is to get it to find my.doma.in/mobile.php when I enter my.doma.in/mobile in the adress field. I am using the same available-site-file as I did before, the file looks as this: <VirtualHost *:80> ServerName my.doma.in ServerAdmin [email protected] DocumentRoot /home/christian/www/do <Directory /> Options FollowSymLinks AllowOverride All </Directory> <Directory /home/christian/www/do> Options Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> From what I have read various places while googling this issue I found that the negotiation module had to be enabled so I tried to enable it. sudo a2enmod negotiation Giving me this result Module negotiation already enabled I have read through the /etc/apache2/apache2.conf and I did not find anything in particular that seemed to be helping me there, but please do ask if you think I should post it. Any ideas on how to solve this through getting Multiviews to work?

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  • Getting Server 2008 R2 to ignore all traffic from Internet-facing NIC, leaving it to a VM

    - by Wolvenmoon
    I got in to Server 2008 R2 via Dreamspark and would like to start learning on it. I don't have much option but to put it on a system sitting between the Internet and my home LAN due to electricity bills and the fact that 3 computers in an 11x11 space in 102 degree weather is pretty stygian. Currently I use a ClearOS gateway to manage everything, what I'd like to do is take my server 2008 R2 box, which has two NICs, and drop it at the head of my network. I'd want Server 2008 R2 to ignore all traffic on the external facing NIC and pass it to a virtual ClearOS gateway, and to put all its Internet traffic through its other NIC - which will face the rest of my network and be the default gateway for it. The theory is to keep the potentially vulnerable Server 2008 R2 install as tucked behind a Linux box as possible, without sacrificing too much performance. This is a home network that occasionally hosts dedicated game servers and voice chat servers, so most malicious activity is in the form of drive by non-targeted attacks, however, I don't trust Windows Server because I don't know the OS well enough, yet. So, three questions: How do I do this, am I going to be reasonably more secure doing this than if I just let the Server 2008 R2 rig handle all the network traffic and DHCP (not an option), and should I virtualize the Server 2008 R2 rig instead and if so in what? (Core 2 Duo e6600 w/ 5 gigs usable RAM)

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  • SQL Server 2008 Remote Access

    - by Timothy Strimple
    I'm having problems connecting to my SQL Server 2008 database from my computer. I have enabled remote connections as described in this answer (http://serverfault.com/questions/7798/how-to-enable-remote-connections-for-sql-server-2008). And I have added the ports listed on the microsoft support page to our Cisco Asa firewall and I'm still unable to connect. The error I'm getting from the SQL Management Studio is: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 - A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.) (Microsoft SQL Server, Error: 10060) Once again, I have double and triple checked that remote connections are enabled under the database properties and that TCP is enabled on the configuration page. I've added tcp ports 135, 1433, 1434, 2382, 2383, and 4022 as well as udp 1434 to the firewall. I've also checked to make sure that 1433 is the static port that is set in the tcp section of the database server configuration. The ports should be configured correctly in the firewall since http/https and rdp are all working and the sql server ports are setup the same way. What am I missing here? Any help you could offer would be greatly appreciated. Edit: I can connect to the server via TCP on the internal network. The servers are colocated in a datacenter and I can connect from my production box to my development box and vice versa. To me that indicates a firewall issue, but I've no idea what else to open. I've even tried allowing all tcp ports to that server without success.

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  • What should I do to make sure that IIS does not recycle my application?

    - by AngryHacker
    I have a WCF service app hosted in IIS. On startup, it goes and fetches a really expensive (in terms of time and cpu) resource to use as local cache. Unfortunately, IIS seems to recycle the process on a fairly regular basis. So I am trying to change the settings on the Application Pool to make sure that IIS does not recycle the application. So far, I've change the following: Limit Interval under CPU from 5 to 0. Idle Time-out under Process Model from 20 to 0. Regular Time Interval under Recycling from 1740 to 0. Will this be enough? And I have specific questions about the items I changed: What specifically does Limit Interval setting under CPU mean? Does it mean that if a certain CPU usage is exceeded, the application pool will be recycled? What exactly does "recycled" mean? Is the application completely torn down and started up again? What is the difference between "Worker Process shutdown" and "Application Pool recycling"? The documentation for the Idle Time-out under Process Model talks about shutting down the worker process. While the docs for Regular Time Interval under Recycling talk about application pool recycling. I don't quite grok the difference between the two. I thought the w3wp.exe is the worker process which runs the application pool. Can someone explain the difference to the application between the two? The reason for having IIS7 and IIS7.5 tags is because the app will run in both and hope the answers are the same between the versions. Image for reference:

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  • Skype Connect as SIP/Trunk for Asterisk

    - by Kaurin
    First off: I'm not sure if this should be on superuser or here. I have recently built a few Asterisk boxes with OpenVOX FXO/FXS ports little or no trouble. My current project is building an Asterisk box with SIP trunks. My current employer insisted on getting Skype Business/Skype connect for that purpose. After reviewing the Skype Connect plan, I agreed, because I thought it is going to be straightforward: Purchase G729 licences and setup SIP trunk/trunks. Boy was i wrong :) Here is the setup: The setup is for calling US numbers only via skype (we got skype US minute bundles in skype connect) AsteriskNOW - Asterisk 1.4 + asterisk-gui Trunks: SIP Trunk configured with Skype Connect - shows as registered Users: 2 test extensions. Both work fine when calling each other, voicemail etc works fine too The asterisk box is behind a Mikrotik router which i configured to forward all relevant ports: 5060-5090 UDP, 10000-20000 UDP. When trying out an extension outside of my LAN, it worked. I could make calls to the other extension. Outgoing rule: _NXXXXXXXXX Strip:0 Prepend:+1 Use skype trunk Inbound rule: Trunk: Skype Pattern: s Destination: Extension1 (6210) Here is the output of asterisk CLI (-rvvvvv) with outgoing calls: http://pastebin.com/eWVpL72e you can see the circuit-busy response when using trunk1 (skype) When calling my Skype Connect number from the outside, I get nothing in the logs. Can anyone with Skype Connect / Asterisk experience help out? :)

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  • Vagrant up doesn't load chef configs and doesn't keep an error log

    - by la_f0ka
    I'm trying to set up a vagrant box and I'm running with all sort of troubles. Right now I'm getting a strange error message where it states there's a stack trace file with more info, but that file is no where to be found. This is the error: stdin: is not a tty [Sun, 16 Sep 2012 18:31:47 +0000] INFO: *** Chef 0.10.0 *** [Sun, 16 Sep 2012 18:31:48 +0000] INFO: Setting the run_list to ["recipe[apt]", "recipe[openssl]", "recipe[apache2]", "recipe[mysql]", "recipe[mysql::server]", "recipe[php]", "recipe[php::module_apc]", "recipe[php::module_curl]", "recipe[php::module_mysql]", "recipe[apache2::mod_php5]", "recipe[apache2::mod_rewrite]"] from JSON [Sun, 16 Sep 2012 18:31:48 +0000] INFO: Run List is [recipe[apt], recipe[openssl], recipe[apache2], recipe[mysql], recipe[mysql::server], recipe[php], recipe[php::module_apc], recipe[php::module_curl], recipe[php::module_mysql], recipe[apache2::mod_php5], recipe[apache2::mod_rewrite]] [Sun, 16 Sep 2012 18:31:48 +0000] INFO: Run List expands to [apt, openssl, apache2, mysql, mysql::server, php, php::module_apc, php::module_curl, php::module_mysql, apache2::mod_php5, apache2::mod_rewrite] [Sun, 16 Sep 2012 18:31:48 +0000] INFO: Starting Chef Run for natty.talifun.com [Sun, 16 Sep 2012 18:31:48 +0000] ERROR: Running exception handlers [Sun, 16 Sep 2012 18:31:48 +0000] ERROR: Exception handlers complete [Sun, 16 Sep 2012 18:31:48 +0000] FATAL: Stacktrace dumped to /tmp/vagrant-chef-1/chef-stacktrace.out [Sun, 16 Sep 2012 18:31:48 +0000] FATAL: NameError: wrong constant name Chef-symfony2Console Chef never successfully completed! Any errors should be visible in the output above. Please fix your recipes so that they properly complete. And this is what my vagrantfile looks like: Vagrant::Config.run do |config| config.vm.box = "ubuntu-1104-server-i386" config.vm.network :hostonly, "33.33.33.33" config.vm.forward_port 80, 8000 config.vm.share_folder "symfony.tests", "/var/www/symfony.tests", "data", :nfs => true config.vm.provision :chef_solo do |chef| chef.cookbooks_path = ["../my-recipes/cookbooks", "site-cookbooks"] chef.add_recipe "apt" chef.add_recipe "openssl" chef.add_recipe "apache2" chef.add_recipe "mysql" chef.add_recipe "mysql::server" chef.add_recipe "php" chef.add_recipe "php::module_apc" chef.add_recipe "php::module_curl" chef.add_recipe "php::module_mysql" chef.add_recipe "apache2::mod_php5" chef.add_recipe "apache2::mod_rewrite" chef.add_recipe "Symfony" chef.json = { :mysql => { :server_root_password => 'root', :bind_address => '127.0.0.1' } } end end

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  • How to set up IP forwarding on Nexenta (Solaris)?

    - by Gleb
    I am trying to set up IP forwarding on my Nexenta box: root@hdd:~# uname -a SunOS hdd 5.11 NexentaOS_134f i86pc i386 i86pc Solaris The box has 2 network interfaces: root@hdd:~# ifconfig -a lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 e1000g1: flags=1001100843<UP,BROADCAST,RUNNING,MULTICAST,ROUTER,IPv4,FIXEDMTU> mtu 1500 index 2 inet 192.168.12.2 netmask ffffff00 broadcast 192.168.12.255 ether 68:5:ca:9:51:b8 myri10ge0: flags=1100843<UP,BROADCAST,RUNNING,MULTICAST,ROUTER,IPv4> mtu 9000 index 3 inet 10.10.10.10 netmask ffffff00 broadcast 10.10.10.255 ether 0:60:dd:47:87:2 lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1 inet6 ::1/128 192.168.12.0 is my normal LAN with 192.168.12.1 being the firewall/gateway 10.10.10.0 is a separate LAN for iSCSI (with no internet access) I want to set up IP forwarding so that a computer on 10.10.10.0 will be able to access the internet by using 10.10.10.10 as a gateway (I don't need any port forwarding) I have turned on IP forwarding: root@hdd:~# routeadm Configuration Current Current Option Configuration System State --------------------------------------------------------------- IPv4 routing disabled disabled IPv6 routing disabled disabled IPv4 forwarding enabled enabled IPv6 forwarding disabled disabled Routing services "route:default ripng:default" Routing daemons: STATE FMRI disabled svc:/network/routing/rdisc:default disabled svc:/network/routing/route:default disabled svc:/network/routing/legacy-routing:ipv4 disabled svc:/network/routing/legacy-routing:ipv6 disabled svc:/network/routing/ripng:default online svc:/network/routing/ndp:default But when I dry to start ipnat, I get an error: root@hdd:~# ipnat -CF -f /etc/ipf/ipnat.conf ioctl(SIOCGNATS): I/O error Here is the config: root@hdd:~# cat /etc/ipf/ipnat.conf #!/sbin/ipnat -f - # map e1000g1 10.10.10.10/24 -> 192.168.12.2/32 So the question is how to fix this.. Thanks in advance!

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  • Exim and receiving email with large recipient lists

    - by AceJordin
    I have Exim4 running on Debian configured to receive mail on multiple domains. Exim is set to forward all email that is received to one of the domains to another box. This box is configured with a catchall mailbox that everything goes in. My issue is that when an email is sent to the domain, which contains a large amount of addresses (all to the same domain, but different users), Exim will receive the single email over multiple connections. This means that the catchall mailbox receives multiple copies of the single email all containing the full recipient list. For example, I was able to reproduce it by sending an email from my gmail account that contained 500 recipients (eg [email protected]; [email protected]; [email protected]; etc. for a total of 500). Exim received the message as 20 messages (25 recipients per; appears to be a gmail server setting). So the catchall mailbox received 20 messages, each containing all 500 addresses. I'm pretty sure I understand why this is happening but is there any way I can configure Exim to only receive it once, or to combine it into one? Is there anything that can be done on my end, or am I at the mercy of the sending email server? This is causing havoc with a process that polls the catchall mailbox and parses each recipient in each email.

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