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• security update in centos, which way is it?

  - by user119720

  Recently something have been bothered with my mind regarding my linux CentOS box.My client have been asking to set up a CentOS machine in their environment which works as server. One of their requirement is to make sure that the set up is to be as secure as possible. Mostly have been covered except the security update inside CentOS. So my question are as follows: 1.. How to apply the latest security,patches or bug fixes in CentOS? When doing some research, I've been told that we can update the security of CentOS by running yum install yum-security but after install this plug in,seems there is no output for this method.Its like this command is not working anymore. 2.. Can i update the security patches through rpm packages? I couldn't find any site that can download the security patches,enhancement or bug fixes for CentOS.But I know that CentOS have been releasing these update through their CentOS announcement here It just it lack of documentation on how to apply these update into my CentOS installation. For now the only way that I know is to run yum update I am hoping that someone can help me to clarify these matter.Thanks.

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• Chipset fan on the frtiz - compressed air hasn't fixed anything - is there anything I can do?

  - by Anthony

  Yesterday, my computer started to make an annoying whining noise. Knowing that this is likely a fan issue, I opened the case and proceeded to determine which fan was causing the issue. I got some compressed air and tried cleaning out the dust around it (and the rest of the computer while I was at it). This hasn't seemed to fix the issue. Now, if it were just any fan, I would probably just replace the fan - they're relatively cheap after all. However, this is a special fan. Aside: For what its worth, I feel bad that the graphics card blocks part of the fan, but it is the only slot the graphics card fits, so I had no choice. After pulling out my motherboard user guide, it looks like this is a fan placed directly on top of the chipset. To be perfectly honest, I have no clue what the purpose of the chipset is - but it sounds important. After some quick research, I see that it is responsible for providing the bridge between my CPU, RAM and graphics, among other things. Just a quick search at Newegg tells me that chipset fans can be purchased at pretty reasonable prices (< 20 dollars). Is it practical to replace this fan? It is an old computer as computers go and I wouldn't be terribly upset to upgrade the motherboard and processor, so perhaps this is a sign. Hardware Specs: Motherboard: Asus A8N-E Chipset: NVIDIA nForce4 Ultra

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• How do I get "Back to My Mac" (using MobileMe) from Windows?

  - by benzado

  I have a MobileMe subscription and a Mac at home with "Back to My Mac" enabled. When I'm away from home, this service lets me use another Mac to connect to my Mac back home and access file sharing, screen sharing, etc. As far as I know, the service doesn't use any proprietary protocols, so in theory I should also be able to get "Back to My Mac" from a Windows PC. This MacWorld article explains how it works. Basically, it uses Wide-Area Bonjour to give your Mac a domain name like hostname.username.members.mac.com. Remote computers can find your Mac using that address, then connect to it using a private VPN. The "Wide Area Bonjour" part seems to make it a little more complicated than simply a regular domain name, though. Note that I'm not interested in using the methods described by LifeHacker, which doesn't use the MobileMe service at all. I don't want to use a totally different dynamic DNS service. I'd like to use the one I'm already paying for, or at least find out why that's not possible from Windows. Also, my primary problem is finding a network route back to my mac... once I've got that I know how to enable services so that Windows can talk to it. UPDATE: Based on some additional research, it appears that Apple is only assigning IPv6 addresses to the hostname.username.members.mac.com names. So any solution will require enabling IPv6 support on Windows, if possible.

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• Unable to access my IIS website using hostname. Works fine with localhost

  - by rajugaadu

  I am unable to access my IIS website or even the default website. I did a bit of research and checked/selected the option 'Integrate Windows Authentication' in the Properties > Directory Service tab. From then on I could access the website using localhost. But when I use my hostname, it asks for domain username/password. Why is it so? I don't understand why am I not able to access my website without checking this option to integrate windows authentication? My goal is to access the website using both localhost and hostname. More details on what I did: I haven't done anything out of world. What I did is: IIS - Websites - Create new Website - Create a working folder - Set a default page. I restart this website and then click on browse. And I do not see my default page. I had to go to Directory Service tab and select the check box "Integrate Windows Authentication". Then I can see the default page coming. On IE too I can see the default page coming when I use http://localhost. But when I use http://{hostname} it asks for domain username and password. Why???

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• Cannot get mod_rewrite to work on Mac OSX Mountain Lion

  - by Joel Joel Binks

  I have tried everything I can think of and it still doesn't work. I am trying to get the example code from Larry Ullman's Advanced PHP book to work. His instructions were a bit lacking so I had to do some research. Here is what I have configured: username.conf <Directory "/Users/me/Sites/"> Options Indexes MultiViews FollowSymLinks AllowOverride All Order allow,deny Allow from all </Directory> httpd.conf LoadModule rewrite_module libexec/apache2/mod_rewrite.so DocumentRoot "/Users/me/Sites" <Directory /> Options Indexes MultiViews FollowSymLinks AllowOverride All Order deny,allow Allow from all </Directory> <Directory "Users/me/Sites"> Options Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny Allow from all </Directory> .htaccess <IfModule mod_rewrite.so> RewriteEngine on RewriteBase /phplearning/ADVANCED/ch02/ # Redirect certain paths to index.php: RewriteRule ^(about|contact|this|that|search)/?$ index.php?p=$1 RewriteLog "/var/log/apache/rewrite.log" RewriteLogLevel 2 </IfModule> Nothing has worked and it won't even log to the rewrite.log file. What have I done wrong? FYI even when I set up an extremely simple rule or use the root as the rewrite base, it still fails. I have also verified the mod_rewrite module is running. I am really angry.

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• Tracking Security Vulnerability remediation

  - by Zypher

  I've been looking into this for a little while, but havn't really found anything suitable. What I am looking for is a system to track security vulnerability remdiation status. Something like "bugzilla for IT" What I am looking for is something pretty simple that allows the following: batch entry of new vulnerabilities that need to be remediated Per user assignment AD/LDAP Authentiation Simple interface to track progress - research, change control status, remediated, etc. Historical search ability Ability to divide by division Ability to store proof of resolution for the Security Team to access Dependency tracking Linux based is best (that's my group :) ) Free is good, but cost doesn't matter so much if the system is worth it The systems doesn't have to have all of these features, but if it did that would be great. yes we could use our helpdesk software, but that has a bunch of pitfalls such as triggering SLA alerts and penalties as well as not easily searchable outside of a group. Most of what I have found are bug tracking systems that are geared towards developers, and are honstely way overkill for what I am looking for. Server Faults input is greatly appreciated as always!

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• Virtual Lan on the Cloud -- Help Confirm my understanding?

  - by marfarma

  [Note: Tried to post this over at ServerFault, but I don't have enough 'points' for more than one link. Powers that be, move this question over there.] Please give this a quick read and let me know if I'm missing something before I start trying to make this work. I'm not a systems admin professional, and I'd hate to end up banging my head into the wall if I can avoid it. Goals: Create a 'road-warrior' capable star shaped virtual LAN for consultants who spend the majority of their time on client sites, and who's firm has no physical network or servers. Enable CIFS access to a cloud-server based installation of Alfresco Allow Eventual implementation of some form of single-sign-on ( OpenLDAP server ) access to Alfresco and other server applications implemented in the future Given: All Servers will live in the public internet cloud (Rackspace Cloud Servers) OpenVPN Server will be a Linux disto, probably Ubuntu 9.x, installed on same server as Alfresco (at least to start) Staff will access server applications and resources from client sites, hotels, trains, planes, coffee shops or their homes over various ISP, using their company laptops or personal home desktops. Based on my Research thus far, to accomplish this, I'll need: OpenVPN with Bridging Enabled to create a star shaped "virtual" LAN http://openvpn.net/index.php/open-source/documentation/miscellaneous/76-ethernet-bridging.html A Road Warrior Network Configuration, as described in this Shorewall article (lower down the page) http://www.shorewall.net/OPENVPN.html Configure bridge addressesing (probably DHCP) http://openvpn.net/index.php/open-source/faq.html#bridge-addressing Configure CIFS / Samba to accept VPN IP address http://serverfault.com/questions/137933/howto-access-samba-share-over-vpn-tunnel Set up Client software, with keys configured for access (potentially through a OpenVPN-Sa client portal) http://www.openvpn.net/index.php/access-server/download-openvpn-as/221-installation-overview.html

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• Postfix Whitelist before recipient restrictions

  - by GruffTech

  Alright. Some background. We have an anti-spam cluster trucking about 2-3 million emails per day, blocking somewhere in the range of 99% of spam email from our end users. The underlying SMTP server is Postfix 2.2.10. The "Frontline defense" before mail gets carted off to SpamAssassin/ClamAV/ ect ect, is attached below. ...basic config.... smtpd_recipient_restrictions = reject_unauth_destination, reject_rbl_client b.barracudacentral.org, reject_rbl_client cbl.abuseat.org, reject_rbl_client bl.mailspike.net, check_policy_service unix:postgrey/socket ...more basic config.... As you can see, standard RBL services from various companies, as well as a Postgrey service. The problem is, I have one client (out of thousands) who is very upset that we blocked an important email of theirs. It was sent through a russian freemailer who was currently blocked in two of our three RBL servers. I explained the situation to them, however they are insisting we do not block any of their emails. So i need a method of whitelisting ANY email that comes to domain.com, however i need it to take place before any of the recipient restrictions, they want no RBL or postgrey blocking at all. I've done a bit of research myself, http://www.howtoforge.com/how-to-whitelist-hosts-ip-addresses-in-postfix seemed to be a good guide at first, almost fixing my problem, But i want it to accept based on TO address, not originating server.

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• Juniper NetScreen NS-5GT traffic monitoring

  - by blah

  I've done casual research into the subject and am truly dismayed at the lack of compatible tools for such a simple task. Maybe someone can provide assistance. We have a NetScreen NS-5GT in the office. I need to be able to get a glance of current traffic per endpoint -- I think the equivalent of 'get sessions' with byte counts/rates. I don't care about bars, graphs, and reports. Something as simple as a classic software firewall display would be perfect. I can't shell out money on something real like SolarWinds products, so a free solution is essential. I'm willing to do a little work but refuse to program something from scratch. It's not prudent right now for me to install a hub or otherwise mess around physically. There must be something out there I can use, maybe in combination. I don't believe I'm asking too much. Specific answers only please, e.g. monitoring software you know will actually work with this antiquated device. I've read about general approaches to the broader problem dozens of times already.

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• Which Linux distribution for vehicle LCD instrument panel

  - by Brent

  I will be designing an instrument panel for a vehicle to display the common gauges that you would find in a car - (speedometer, rpm, fuel level, oil pressure, etc.). We have selected a 7" LCD and are in the process of narrowing down the hardware (This will use an ARM processor). The idea is to read these values off of the CAN Bus and update the UI with those values. This needs to have a fairly quick boot time, 5-10 seconds would be acceptable from the time the ignigtion is turned on to the time the UI is running. I have been doing a lot of research on which linux distribution to use, but I wanted to ask the question here to get the community's suggestions. I have been a .NET programmer for years, so linux is a new world to me. Here is what I have found so far... Tizen is geared for In-Vehicle Infotainment (IVI) (plus some others). However, this project is not an IVI, and I do not need the phone dialer, navigation, etc. Meego is dead, and Tizen seems to be the replacement Angstrom, Debian... would either of these be useful? I am not tied to a particular programming language or IDE. Any help and direction is appreciated!

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• Laptop authentication/logon via accelerometer tilt, flip, and twist

  - by wonsungi

  Looking for another application/technology: A number of years ago, I read about a novel way to authenticate and log on to a laptop. The user simply had to hold the laptop in the air and execute a simple series of tilts and flips to the laptop. By logging accelerometer data, this creates a unique signature for the user. Even if an attacker watched and repeated the exact same motions, the attacker could not replicate the user's movements closely enough. I am looking for information about this technology again, but I can't find anything. It may have been an actual feature on a laptop, or it may have just been a research project. I think I read about it in a magazine like Wired. Does anyone have more information about authentication via unique accelerometer signatures? Here are the closest articles I have been able to find: Knock-based commands for your Linux laptop Shake Well Before Use: Authentication Based on Accelerometer Data[PDF] Inferring Identity using Accelerometers in Television Remote Controls User Evaluation of Lightweight User Authentication with a Single Tri-Axis Accelerometer Identifying Users of Portable Devices from Gait Pattern with Accelerometers[PDF] 3D Signature Biometrics Using Curvature Moments[PDF] MoViSign: A novel authentication mechanism using mobile virtual signatures

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• Unable to install mod_wsgi on CentOS 5.5 VPS...

  - by jasonaburton

  I am trying to install mod_wsgi on my VPS, but it won't work. This is what I am doing: wget http://modwsgi.googlecode.com/files/mod_wsgi-2.5.tar.gz tar xzvf mod_wsgi-2.5.tar.gz cd mod_wsgi-2.5 ./configure --with-python=/opt/python2.5/bin/python After I run the above command, I get this error: checking for apxs2... no checking for apxs... no checking Apache version... ./configure: line 1298: apxs: command not found ./configure: line 1298: apxs: command not found ./configure: line 1299: /: is a directory ./configure: line 1461: apxs: command not found configure: creating ./config.status config.status: creating Makefile config.status: error: cannot find input file: Makefile.in Through some research I've discovered that I need to modify my command: ./configure --with-apxs=/usr/local/apache/bin/apxs \ --with-python=/usr/local/bin/python But, /usr/local/apache/ doesn't exist, or so that's what it is telling me. If it doesn't exist, how do I create it with all the files needed, or if apache is located elsewhere on my VPS where would it be located? I'd also like to mention that I ran a command to install apache before this entire deal: yum install httpd so I assumed that was all I needed but apparently not (I am very new at all this server administration stuff so please be gentle) EDIT: This is the tutorial that I have been using to get this all set up: http://binarysushi.com/blog/2009/aug/19/CentOS-5-3-python-2-5-virtualevn-mod-wsgi-and-mod-rpaf/ I got stuck at the heading "Installing mod_wsgi" Thanks for any help!

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• .NET 3.5 installation comes up with Error 0x800F0906, then 0x800F0081F using dism

  - by Austin Meadows

  I've recently tried installing .NET 3.5 for an application on Windows 8.1. I used the OS's popup thing to download/install .NET 3.5 and always get error code 0x800F0906. Upon further research, I found I would have to pop in my Windows 8 CD and install it with this command, where "E:\" is where my CD is mounted: Dism /online /enable-feature /featurename:NetFx3 /All /Source:E:\sources\sxs /LimitAccess This and any derivative of it (e.g., removing /LimitAccess) has not worked for me and has either given me the same error code (0x800F0906) or a different one, 0x800F0081F. I've even copied the sxs folder to my hard drive, just in case something was going on with the CD Drive, only to have the same results. In that case, I used this command line: Dism /online /enable-feature /featurename:NetFx3 /All /Source:C:\dotnet35 /LimitAccess I find this surreal because in both cases, the files are indeed there but the program thinks it's not. Here's the CBS.log file. Any ideas on how to fix this? Any help is very appreciated :) EDIT: I now have a proper dism.log file, I'm not sure what happened to the last one or why it did that. Here's the link to the new log file. It's interesting to note that it doesn't recognize some of the commands in the script such as "featurename" or "source".

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• Checkpoint VPN-1 R60 and Windows 7 64 Bit Client

  - by Mohit

  As per my knowledge of checkpoint VPN-1. My company is using checkpoint VPN-1 R 60 ( I guess as I dont know how to check server version) Firewall(VPN Server). Now the problem is that I installed Windows 7 64 bit. But, after my research I found that there are not even one client (SecuRemote/SecuClient) for Win7 64 bit, when Firewall or server is R60. I thought of some open source solutions. Can you guys please suggest me some with the configuration required. As of now, I know the IP of the server. I know my username and password using which I connect and that is not my domain password. that i can confirm to you guys. I am not a network guy. I am more of a developer. But, I need some help in this.So, let me know if I can provide you more details. Please please i need urgent help on this.

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• Upgrading Visio 2000 to Visio 2007

  - by dirtside

  I have Microsoft Visio 2000 SR 1, and recently purchased Microsoft Office Visio Standard 2007 with the understanding (supported by the product info and some other research) that I'd be able to upgrade. However, when I install 2007, it tells me it can't find a previous install of Visio, but... it's right there! Here's the exact message: "Setup can't find a version of Microsoft Office on your computer. If Office is installed on a disk or network share, click the browse button to select the appropriate disk or share... (etc.)" No matter which directory or drive I pick (various Office installs, the old Visio install, various subdirectories) it gives the following message: "The path you have chosen does not point at a qualifying upgradeable product. Click 'Retry' to try again or 'Cancel' to quit setup." Any ideas? This is a legit copy of Visio 2007 (purchased from Amazon) and the copy of Visio 2000 is legit as well. I'm not sure what exactly the installer is looking for that it would consider a "qualifying upgradeable product". A specific file?

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• Converting DisplayPort and/or HDMI to DVI-D?

  - by Jeff Atwood

  Newer Radeon video cards come with four ports standard: DVI (x2) HDMI DisplayPort If I want to run three 24" monitors, all of which are DVI only, from this video card -- is it possible to convert either the HDMI or DisplayPort to DVI? If so, how? And which one is easier/cheaper to convert? I did a little research and it looks like there isn't a simple "dongle" method. I found this DisplayPort to DVI-D Dual Link Adapter but it's $120; almost cheaper to buy a new monitor that supports HDMI or DisplayPort inputs at that point! There's also a HDMI to DVI-D adapter at Monoprice but I'm not sure it will work, either. AnandTech seems to imply that you do need the DisplayPort-to-DVI: The only catch to this specific port layout is that the card still only has enough TMDS transmitters for two ports. So you can use 2x DVI or 1x DVI + HDMI, but not 2x DVI + HDMI. For 3 DVI-derived ports, you will need an active DisplayPort-to-DVI adapter.

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• Office 365 - Outlook shows Global Address List clicking "Rooms" during a meeting request

  - by TheCleaner

  This appears to be a "known" issue, but apparently no fix for it. However, I've been impressed before at the tenacity of the experts here to figure out an answer/fix. ISSUE When booking a New Meeting in Outlook (2013 or 2010) and choosing the Rooms button: The default list that opens is the Offline Global Address List: Which means a user has to change from the Offline Global Address List to the All Rooms list as shown here in order to easily pick from the list of actual rooms/resources: This isn't the default however for On-Premise Exchange servers. They default "correctly" to the All Rooms list when you click the Rooms button in the meeting request. While the option of using the Room Finder is there and does work, users have to know to click the Room Finder choice and it doesn't fix the actual root issue here. MY RESEARCH A few links I've found: http://community.office365.com/en-us/forums/158/t/41013.aspx http://community.office365.com/en-us/forums/148/p/24139/113954.aspx http://community.office365.com/en-us/forums/172/t/58824.aspx It was suggested that it might be that the "msExchResourceAddressLists attribute has incorrect value set". I checked my config by running: Get-OrganizationConfig | Select-Object ResourceAddressLists and the output was what it should be: ResourceAddressLists -------------------- {\All Rooms} QUESTION Does anyone have a fix that will make the All Rooms list be the default list when clicking the Rooms button in Outlook when using Office 365 / Exchange Online?

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• Compiling Gearman PHP Library for CentOS 5.8

  - by Andrew Ellis

  I've been trying to get Gearman compiled on CentOS 5.8 all afternoon. Unfortunately I am restricted to this version of CentOS by my CTO and how he has our entire network configured. I think it's simply because we don't have enough resources to upgrade our network... But anyways, the problem at hand. I have searched through Server Fault, Stack Overflow, Google, and am unable to locate a working solution. What I have below is stuff I have pieced together from my searching. Searches have told said to install the following via yum: yum -y install --enablerepo=remi boost141-devel libgearman-devel e2fsprogs-devel e2fsprogs gcc44 gcc-c++ To get the Boost headers working correctly I did this: cp -f /usr/lib/boost141/* /usr/lib/ cp -f /usr/lib64/boost141/* /usr/lib64/ rm -f /usr/include/boost ln -s /usr/include/boost141/boost /usr/include/boost With all of the dependancies installed and paths setup I then download and compile gearmand-1.1.2 just fine. wget -O /tmp/gearmand-1.1.2.tar.gz https://launchpad.net/gearmand/1.2/1.1.2/+download/gearmand-1.1.2.tar.gz cd /tmp && tar zxvf gearmand-1.1.2.tar.gz ./configure && make -j8 && make install That works correctly. So now I need to install the Gearman library for PHP. I have attempted through PECL and downloading the source directly, both result in the same error: checking whether to enable gearman support... yes, shared not found configure: error: Please install libgearman What I don't understand is I installed the libgearman-devel package which also installed the core libgearman. The installation installs libgearman-devel-0.14-3.el5.x86_64, libgearman-devel-0.14-3.el5.i386, libgearman-0.14-3.el5.x86_64, and libgearman-0.14-3.el5.i386. Is it possible the package version is lower than what is required? I'm still poking around with this, but figured I'd throw this up to see if anyone has a solution while I continue to research a fix. Thanks!

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• The RTL8111/8168B NIC under Linux and the r8168 driver

  - by nik

  So I've got one of the infamous R8168 Realtek ethernet NIC, which have some problems under Linux. After some research, I found out I had to use the r8168 driver for this card (and not the r8169 which still loads when nothing else is available), which I did. So now everything works fine... Sort of. My download and upload rates are more than halved compared to what I should get. When I test (with eg. speedtest) I get something like 20M (often 15M) in download and 30M in upload, but if I test under Windows (everything is otherwise identical: same ethernet cable, same connection, at the same time of the day (well 5 min apart)...), I get 50M upload/download (which is what I expect). Where can it come from? Here's some info: ~ # lspci [...] 06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) ~ # modinfo r8168 filename: /lib/modules/3.2.1-gentoo-r2/net/r8168.ko version: 8.027.00-NAPI license: GPL description: RealTek RTL-8168 Gigabit Ethernet driver author: Realtek and the Linux r8168 crew <[email protected]> srcversion: 0A6E9F1D4E8E51DE4B6BEE3 alias: pci:v00001186d00004300sv00001186sd00004B10bc*sc*i* alias: pci:v000010ECd00008168sv*sd*bc*sc*i* depends: vermagic: 3.2.1-gentoo-r2 SMP mod_unload [...] ~ # mii-tool -v eth0: negotiated 100baseTx-HD, link ok product info: vendor 00:07:32, model 17 rev 4 basic mode: autonegotiation enabled basic status: autonegotiation complete, link ok capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD advertising: 100baseTx-HD 10baseT-FD 10baseT-HD flow-control link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

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• Use one NIC to create multiple interfaces for Linux KVM

  - by Phanto

  I am working on a thesis research project, and I am having some difficulty figuring out how to make one NIC spawn several "bridge" interfaces such that each KVM VM can be seen on the local network. I am very new to KVM, and am still exploring what it can do. Below is the scenario that I am attempting to make (on a CentOS/RHEL 6 system): Linux KVM Host has 1 NIC (eth0) connected to a switch. Create multiple "bridge" or equivalent interfaces that are spawned off of eth0 that would provide a unique IP for each VM. This is so that each VM can communicate with other hosts on the network, and that other hosts on the network can communicate with the VM. IMPORTANT: I would like iptables on the KVM host to be able to manipulate/control/restrict the traffic that would be sent on those "bridge" interfaces. I would like to create a minimum of three VM's, each using their own unique "bridge" interfaces. I have previously made a br0 interface off of eth0, but unfortunately, I am unable to add any more to it. It appears that you can only bridge 1 interface to the NIC. I would like to bridge many to one. Would a tap device be able to do this? If so, how would it be set up? Effectively, I am attempting to replicate what can easily be created with VirtualBox on Windows, where each VM is given a "bridged" interface, and can live on the network. I want to achieve this very same thing with Linux KVM. Thank You EDIT: To be more descriptive, I want to achieve something that looks like this: This can be found on this page: http://en.gentoo-wiki.com/wiki/KVM#Networking_2 HOST +---------------+ | | KVM GUEST1 | | +--------------+ | +------+ | | | LAN ---+--- eth0 | +--+---+---- nic0 | KVM GUEST2 | | tap0----+ | |192.168.1.13 | +--------------+ | | tap1----+ | +--------------+ | | | +------+ | | | | | br0 +--+----------------------+---- nic0 | |192.168.1.12 | |192.168.1.14 | +---------------+ +--------------+

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• How to set up that specific domains are tunneled to another server

  - by Peter Smit

  I am working at an university as research assistant. Often I would like to connect from home to university resources over http or ssh, but they are blocked from outside access. Therefore, they have a front-end ssh server where we can ssh into and from there to other hosts. For http access they advise to set up an ssh tunnel like this ssh -L 1234:proxyserver.university.fi:8080 publicsshserver.university.fi and put the proxy settings of your browser to point to port 1234 All nice and working, but I would not like to let all my other internet traffic go over this proxy server, and everytime I want to connect to the university I have to do this steps again. What would I like: - Set up a ssh tunnel everytime I log in my computer. I have a certificate, so no passwords are needed - Have a way to redirect some wildcard-domains always through the ssh-server first. So that when I type intra.university.fi in my browser, transparently the request is going through the tunnel. Same when I want to ssh into another resource within the university Is this possible? For the http part I think I maybe should set up my own local transparent proxy to have this easily done. How about the ssh part?

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• Finding ALL currently used IP addresses of Website

  - by Patrick R

  What steps would you take to discover all (or close to all) IP addresses that are currently used by a website? How would you be as exhaustive as possible without calling a website admin and asking for the list of IP addresses? ;) nslookup works but will vary based on dns server queried. whois is another good tool. Dig, not bad. Let's use Facebook for example. I'm blocking that site for the majority our our company's users, but some are approved for "research". I can not easily use OpenDNS because we all appear to come from the same request IP address. I could change that but don't want to add more vlans than I already have. I also could use block something like regex facebook1 "facebook\.com" (I'm running a cisco firewall) but that's pretty easy to sidestep. All that being said, I'm asking about specifically about finding ip addresses for a domain and not for other methods that I can block a domain name.

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• Setting "Run WWW service in IIS 5.0 isolation mode" does not persist in IIS 6

  - by Saul Dolgin

  Our IIS server was recently patched with the latest Microsoft Security Updates and since then, I am unable to enable the "Run WWW service in IIS 5.0 isolation mode" setting. This setting was enabled prior to patching and somehow changed during the updates. I have tried both using the IIS Manager console and the adsutil.vbs approach to change it. Either way, after resetting IIS for the change to take effect, when I go to verify that the isolation mode setting is enabled (true) I find that is reverts back to being disabled (false). Now... The patches have already been rolled back, however the setting still does not persist when I enable it. While I am trying to research the patches that were applied to see if there is a known issue (or perhaps a change in this setting's behavior) I was hoping someone else might have come across the same problem. Any help towards a workaround would be greatly appreciated! >cscript adsutil.vbs set W3SVC/IIs5IsolationModeEnabled TRUE IIs5IsolationModeEnabled : (BOOLEAN) True >iisreset Attempting stop... Internet services successfully stopped Attempting start... Internet services successfully restarted >cscript adsutil.vbs get W3SVC/IIs5IsolationModeEnabled IIs5IsolationModeEnabled : (BOOLEAN) False

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• Dynamic ARP Entries turning into Static ARP entries

  - by Zach

  I recently acquired a client that has a strange ARP caching issue on one of thier servers. I have a server that will eventually start turning it's dynamic ARP entries into static ARP entries. This causes problems because when the machine that has a static ARP entries on this server receives a new IP via DHCP, then the server is not able to communicate with the clients. Clearing the ARP cache resolves the issue and the server is fine for about a week and then it starts slowly turning ARP entries into static ARP entries. I haven't narrowed it down to when or how many it starts to do, but slowly you start seeing 1 static ARP and then 5 and then 10. The server in question is a Windows Server 2003 SP2. It is a DC, DHCP, and DNS server. I've checked the DHCP scope options and there's nothing in there that would indicate anything to do with static ARP entries. The only thing different between this DNS server and our other DNS server is that the 'Dynamically Update DNA A and PTR records for DHCP clients that do not request updates' is checked on the problematic server. I've done a bit of research about this and it seems that this may happen if any PXE type services are running, from what I can tell, there is nothing running a PXE server. I'm a bit lost as I have never seen dynamic ARP entries start to turn into static ARP entries. Right now my solution is a schedule task that runs every 24 hours to clear the ARP cache (arp -d *). I would like to not rely on this schedule task. Has anybody seen this before or have any suggestions on how to troubleshoot this?

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• Disable XP disk check using FAT32

  - by mike xie

  Right now I'm using Windows XP and Macintosh on my MacBook Pro via Bootcamp. Sometimes my XP would crash and when I restarted it it would have to go through disk check, although it says I can skip it by pushing a key, but this never worked for me. I did a bit of research online on how to disable disk check and found chkntfs /x c: but when I tried this out in my cmd it said the disk is FAT32 format. I tried to convert my C: drive from FAT32 to NTFS by using convert c: /FS:NTFS but when I tried this it told me to locate my C: drive. I tried to type C: and Bootcamp but couldn't really get past it. I later saw someone said to use this: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager] "AutoChkTimeOut"=dword:0000000 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager] "BootExecute"=hex(7):61,00,75,00,74,00,6f,00,63,00,68,00,65,00,63,00,6b,00,20,\ 00,61,00,75,00,74,00,6f,00,63,00,68,00,6b,00,20,00,2a,00,00,00,00,00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] "SFCScan"=dword:00000000 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\cleanuppath] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\ 00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,63,00,6c,00,\ 65,00,61,00,6e,00,6d,00,67,00,72,00,2e,00,65,00,78,00,65,00,20,00,2f,00,44,\ 00,20,00,25,00,63,00,00,00 (Save it as .reg and execute it) I have just tried running it but am not really sure if it did anything (my laptop hasn't crashed yet :) ) Firstly, I am wondering if someone can tell me how to check if that script worked? Secondly, if that script didn't work, does anyone have any solution for these problems? Is there another way to disable disk check or is there another way for me to change my FAT32 to NTFS?

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