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• How can I calculate power consumption of my PC in Watt?

  - by Jitendra vyas

  How can I calculate power consumption of my PC in Watt, to prove my House owner ( I live on rent) , my PC doesn't consume much power? He blames me for Huge power bills even he too use Fridge, A.C. etc and his son watch the TV all the time. We both share one Power meter so for bill we pay 50%-50% but He is saying I use PC all the time even night i keep on for downloading. I just want to calculate power consumption of my PC then will calculate monthly expense of unit as per my City's per unit price for power. I've Windows: Microsoft Windows XP Professional 5.1.2600 Service Pack 3 Memory (RAM): 960 MB CPU Info: AMD Sempron(tm) Processor 2500+ CPU Speed: 1399.0 MHz Sound card: Vinyl AC'97 Audio (WAVE) Display Adapters: VIA/S3G UniChrome Pro IGP | NetMeeting driver | RDPDD Chained DD Monitors: 1 - 17inch LCD - LG Screen Resolution: 1280 X 768 - 32 bit Network: Network Present Network Adapters: Bluetooth Device (Personal Area Network) #2 | WAN (PPP/SLIP) Interface CD / DVD Drives: I: ELBY CLONEDRIVE COM Ports: COM1 | COM2 | COM7 | COM8 | COM9 | COM10 LPT Ports: LPT1 Mouse: 3 Button Wheel Mouse Present Hard Disks: C: 29.3GB | D: 29.3GB | E: 97.7GB | F: 97.7GB | G: 211.9GB USB Controllers: 5 host controllers. Firewire (1394): 1 host controllers. Manufacturer: Phoenix Technologies, LTD Product Make: MS-7142 AC Power Status: OnLine BIOS Info: AT/AT COMPATIBLE | 01/18/06 | VIAK8M - 42302e31 Motherboard: MICRO-STAR INTERNATIONAL CO., LTD MS-7142 Modem: ZTE USB Modem FFFE CDMA #2

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• SAS vs Near-line SAS vs SATA

  - by David

  I'm unsure about the differences in these storage interfaces. My Dell servers all have SAS RAID controllers in them and they seem to be cross-compatible to an extent. The Ultra-320 SCSI RAID controllers in my old servers were simple enough: One type of interface (SCA) with special drives with special controllers, humming at 10-15K RPM. But these SAS/SATA drives seem like the drives I have in my desktop, only more expensive. Also my old SCSI controllers have their own battery backup and DDR buffer - neither of these things are present on the SAS controllers. What's up with that? "Enterprise" SATA drives are compatible with my SAS RAID controller, but I'd like to know what advantage SAS drives have over SATA drives as they seem to have similar specs (but one is a lot cheaper). Also, how do SSDs fit into this? I remember when RAID controllers required HDDs to spin at the same rate (as if the controller card supplanted the controller in the drive) - so how does that work out now? And what's the deal with Near-line SATA? I apologise about the rambling tone in this message, it's 5am and I haven't slept much.

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• ISA Server 2006 SSL Certificate Dilemma

  - by JohnyD

  I'm making so great headway in offering our services over https with help from a Go Daddy certificate, later to be upgraded to Thawte SSL123 certs. But, I've just run into one whopper of a problem. Here's my setup: I run an ISA 2006 firewall. Our web services are distributed over 2 servers. One is Windows 2000 (www.domain.com) and the other is Windows 2003 (services.domain.com). So, I'll need to purchase 2 certs for both www and services, import them into IIS6 on their respective machines, then export them with the primary key (making sure to Include all certificates in the certification path if possible... that had me stumped for a while), and then to finally import them into ISA's local computer Personal store. The problem I've just run into is that I have separate firewall rules for services.domain.com and www.domain.com... because requests need to be forwarded to different web servers. Each of these firewall rules use the same httplistener. I have just found out that you can only use 1 certificate per httplistener. To make matters worse you can only have a single httplistener per ip / port. Is this correct? I can only use a single certificate for a single ip address? This would seem to be a severe limitation. Am I wrong? If I'm not then I've got a whole lot more work ahead of me as I'll have to set up extra ip's, add them to the firewall's network interface, create new listeners using that ip, etc... Can someone please confirm that I'm doing this correctly / incorrectly? Once I got my head wrapped around it all it seemed easy... then this. Thanks in advance.

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• How to avoid intrusion detection/anti spoofing issue on a sonicwall TZ series FW

  - by Ian

  We have a sonicwall tz series FW with two internet service providers connected. One of the providers has a wireless service which works a bit like an ethernet switch in that we have an ip with a /24 subnet and the gateway is .1. All other clients on the same subnet (say 195.222.99.0) have the same .1 gateway - this is important, read on. Some of our clients are also on the same subnet. Our config: X0 : Lan X1 : 89.90.91.92 X2 : 195.222.99.252/24 (GW 195.222.99.1) X1 and X2 are not connected, other than both being connected to the public Internet. Client config: X1 : 195.222.99.123/24 (GW 195.222.99.1) What fails, what works: Traffic 195.222.99.123 (client) <- 89.90.91.92 (X1) : Spoof alert Traffic 195.222.99.123 (client) <- 195.222.99.252 (X1) : OK - no spoof alert I have several clients with IPs in the 195.222.99.0 range and all provoke identical alerts. This is the alert I see on the FW: Alert Intrusion Prevention IP spoof dropped 195.222.99.252, 21475, X1 89.90.91.92, 80, X1 MAC address: 00:12:ef:41:75:88 Anti-spoofing is switched off on my FW (network-mac-ip-anti-spoofing - config for each interface) for all ports I can provoke the alerts by telneting to a port on X1 from the clients. You can't argue with the logic - this is suspicious traffic. X1 is receiving traffic with a source IP which corresponds to X2s subnet. Anyone know how can I tell the FW that packets with a src subnet of 195.222.99.0 can legitimately appear on X1? I know whats going wrong, I've seen the same thing before, but with higher end FWs you can avoid this with a few extra rules. I can't see how to do this here. And before you ask why we're using this service provider - they give us 3ms (yep 3ms, thats not an error) delay between routers.

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• ZFS - destroying deduplicated zvol or data set stalls the server. How to recover?

  - by ewwhite

  I'm using Nexentastor on a secondary storage server running on an HP ProLiant DL180 G6 with 12 Midline (7200 RPM) SAS drives. The system has an E5620 CPU and 8GB RAM. There is no ZIL or L2ARC device. Last week, I created a 750GB sparse zvol with dedup and compression enabled to share via iSCSI to a VMWare ESX host. I then created a Windows 2008 file server image and copied ~300GB of user data to the VM. Once happy with the system, I moved the virtual machine to an NFS store on the same pool. Once up and running with my VMs on the NFS datastore, I decided to remove the original 750GB zvol. Doing so stalled the system. Access to the Nexenta web interface and NMC halted. I was eventually able to get to a raw shell. Most OS operations were fine, but the system was hanging on the zfs destroy -r vol1/filesystem command. Ugly. I found the following two OpenSolaris bugzilla entries and now understand that the machine will be bricked for an unknown period of time. It's been 14 hours, so I need a plan to be able to regain access to the server. http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6924390 and http://bugs.opensolaris.org/bugdatabase/view_bug.do;jsessionid=593704962bcbe0743d82aa339988?bug_id=6924824 In the future, I'll probably take the advice given in one of the buzilla workarounds: Workaround Do not use dedupe, and do not attempt to destroy zvols that had dedupe enabled. Update: I had to force the system to power off. Upon reboot, the system stalls at Importing zfs filesystems. It's been that way for 2 hours now.

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• How do you add a domain name to a VPS?

  - by jasonaburton

  Hi all, I have a VPS with allgamer.net (I use it to play minecraft). I also have a domain name with networksolutions.com What I want to do is attach that domain name to the VPS. I want to run a wiki on my domain name. If this is possible I can avoid buying another hosting plan just for the wiki. How do I go about doing this? I have very little knowledge in server administration so any advice you guys have is greatly appreciated! I'm pretty sure I have to change the DNS in my domain name to the DNS for my VPS, but on allgamer.net's interface there is no discernable place to find out what I need to change it to. Is there a way to find out the DNS via SSH on my VPS? As well, when I first got my VPS with allgamer.net I filled out a form for it with all my information, but they also wanted a domain name along with it. I gave them the domain name I currently own, but for some reason, it's like it's not connected to the VPS, like if I go to mydomain.com there's nothing, as well, if I use mydomain.com for my minecraft server, it also doesn't work. It's as if it's serving no purpose by being "attached" to my VPS. Any insights into this? Thanks for any help you guys can give me.

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• Routing multiple static IPs from ISP at the cable modem?

  - by Jakobud

  I'm taking over IT responsibilities for a previous IT guy. We have a 50mb cable modem connection from Comcast along with 5 static IP addresses: XXX.XXX.XXX.180 XXX.XXX.XXX.181 XXX.XXX.XXX.182 XXX.XXX.XXX.183 XXX.XXX.XXX.184 We are in the process of replacing our firewall machine. Currently the firewall box is the only thing connected to the cable modem. However the cable modem has multiple ethernet ports on it, similarly to a router. I have assembled a new firewall machine and its time to start testing and configuring it. So that means that I also need it plugged into the cable modem (remember it has multiple ethernet ports on it). So now with multiple computer plugged into the cable modem, how does the cable modem know where to route the traffic? If some request on the internet is made to XXX.XXX.XXX.181, which goes to our cable modem, how does the cable modem know which connected computer that traffic is supposed to be sent? Looking at the web interface for the cable modem, there doesn't seem to be anything special setup on it with regards to routing or NATing IP addresses. Is that because when there is only one computer connected to the modem, all traffic is sent to it by default? Now that I am going to (temporarily) have multiple computers plugged into the cable modem, do I need to specify routing or NAT rules on the modem itself? I am going to speak to Comcast about this next, but I figured I'd ask here first just so I can get a better grasp on how this type of thing generally plays out.

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• NAT, iptables and problematic ports

  - by Rajie

  I am building a small office network with virtual machines. My schema is this: Computer A: gateway, ip 1.1.1.1, iptables used for NAT [eth0=public internet dhcp, dhcp; eth1=gateway] Computer B: client, ip 1.1.1.2, using gateway from Computer A. NAT is working, and Computer B can access the internet using the A's gateway. I redirected some incoming ports from A to B (for instance, if A receives a request to port 80, it goes automatically to Computer B's Apache). The thing is that I do not really understand how to open/close ports for Computer B from Computer A. I know how to close a port: iptables -A INPUT -p tcp --dport 80 -j DROP And it will refuse all incoming (not output) connections to port 80. However, this works for main interface eth0. I tried to, for instance, drop ingoing and outgoing connections for Computer B, port 80: iptables -A FORWARD -i eth1 -o eth0 -p tcp --dport 80 -j DROP iptables -A FORWARD -i eth0 -o eth1 -p tcp --dport 80 -j DROP But it does not work. And I cannot figure out what I am doing wrong. Any clue?

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• Managing Many External Hosts Using EC2 and Route 53

  - by futureal

  Looking for a "best practice" answer to managing externally-addressable hosts using the combination of Amazon EC2 and Amazon Route 53, without using Elastic IPs for each host. In my scenario I will have 30+ hosts that need to be accessible from outside EC2, so directly using internal DNS will not work. In the past, I have addressed hosts by assigning an elastic IP to that host (let's say, 55.55.55.55) and then creating an associated A record. For example, let's say I want to create "ec2-corp01.mydomain.com" I might do: ec2-corp01.mydomain.com. A 55.55.55.55 300 Then on that EC2 instance, I would assign the Elastic IP of 55.55.55.55, and everything works fine. Of course, to make this work, I need to have one Elastic IP per instance, which is something I'd like to avoid if possible; I'd like the infrastructure to be more dynamic. So my thought is to try something like: Create a script that queries the internal EC2 tools to determine an instance's private hostname On instance boot, call that script to determine its hostname, and then using the command-line Route 53 interface to find and update that hostname to its current internal hostname Since the host will have a relatively low TTL (let's say 300 as above, or 5 minutes) it should take effect pretty quickly Is this a good idea? Is there a better or more widely accepted way to handle it? If it IS a good idea, what type of record should I be creating? A CNAME that points to the internal host, like ec2-55-55-55-55.compute-1.amazonaws.com? Is an A record better or worse? Thanks!

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• How do I install the pdo_mysql driver on Red Hat Enterprise Linux 6.1?

  - by Will Martin

  I have a RHEL box running PHP 5.3.3, which was installed using the binary packages provided by yum. I have installed the php-pdo package: # yum info php-pdo Loaded plugins: product-id, rhnplugin, subscription-manager Updating Red Hat repositories. Installed Packages Name : php-pdo Arch : x86_64 Version : 5.3.3 Release : 3.el6_1.3 Size : 168 k Repo : installed From repo : rhel-x86_64-server-6 Summary : A database access abstraction module for PHP applications URL : http://www.php.net/ License : PHP Description : The php-pdo package contains a dynamic shared object that will add : a database access abstraction layer to PHP. This module provides : a common interface for accessing MySQL, PostgreSQL or other : databases. It appears to be working correctly for SQLite databases, but not MySQL. There's no file including pdo_mysql.so in /etc/php.d, and there is no copy of pdo_mysql.so in /usr/lib64/php/modules. I'm pretty sure I just need the driver file and a line in the PHP configuration. A yum search pdo mysql didn't turn up any useful packages, and Google has failed me. If I were on Ubuntu or Debian, I'd apt-get install php5-mysql and be done with it. So ... where in Red Hat land do I get a copy of pdo_mysql.so, and install it properly?

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• Short POST data in HTTP

  - by Matt

  We're hosting a customer's Debian Linux web server. It's running a PHP based web application. The server is sitting behind our firewall with it's own virtual interface and port 80 is forwarded internally to a machine sitting in the DMZ. The issue we're having is that when data is posted to the server it seems to be being cut short for some users. It's reproducable for some users on the same box. But the same user sending the same data on the same lan on another PC it works. The data gets cut to around 1140 bytes I'm told. Any idea why this might be happening? The customer is blaming our firewall, but then surely we'd have issues with other services. I'm suspecting it's a problem with the website itself. Suggestions on how to isolate the problem would be of help. Our firewall is Astaro. EDIT: A customer has set the ethernet frame size temporarily to 500bytes on the server. This made it work for now! I know some of the customers are using an internet provider that runs PPPoE

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• Cisco SG 300-28P PoE switch appears to have damaged my domain server's network IF

  - by cdonner

  I just replaced the old HP ProCurve switch with a new Cisco SG 300-28P managed switch. It has PoE on all ports. Everything works, except for my domain server that went offline and the network interface appears to be dead. Windows says the network cable is disconnected, and no lights blink on the switch. Tried different cables and different ports on the switch. The Cisco PoE ports are supposed to be auto-sensing, i.e. not to send power to a device that cannot handle it. Is this technique not 100% reliable? The server is a SHUTTLE XS35V2 with an onboard network chip, so it is probably fried. My questions: is this plausible? who's fault is it - Shuttle or Cisco (i.e. which support line should I try first)? UPDATE: I did go back and tried another switch between the server and the Cisco switch, and indeed, the connection came back to live. When everything is powered down and I start fresh, with the server connected to the Cisco switch, the port light will blink for a while and the connection status is "No Internet connection" at first until it goes off after about 20 seconds and the connection status changes to "Network cable disconnected". On the other switch it works. Clearly not a PoE issue now. I will start looking into the Cisco's onboard diagnostic functions, but so far I have not noticed anything unusual in the log.

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• Linksys/Cisco Small Business SRW-Series (ie SRW248G4) - Overcoming the Limitations

  - by Warren P

  We just purchased a Cisco/Linksys SRW 248G4 switch to try it out. We have always had unmanaged switches before, and this is our first "somewhat managed" switch. So far the major limitations are: Only Internet Explorer 6 (manual says IE 5.5!) works for the web interface SSH exists but is not practically useable because the only key length that is supported is no longer even used by most modern SSH installs. (I get the error "RSA modulus too small" in openssh 4.x/5.x) This is with the latest firmware revision, I believe, although Cisco's website does not actually tell you what version you're downloading. All in all, I think, they must be trying to tell me that if I want a good-quality switch, I shouldn't buy these SRWs and should buy a Dell or an HP ProCurve, or save up my pennies, and buy a Catalyst. The question here, then, at long last: Has anyone gotten the web-browser to work via some IE 7 or IE 8 compatibility mode settings or used another browser (Opera? KDE/Safari/WebKit?) and spoofed IE6? Is there any way to get the SSH key length upgraded? I'm guessing a 0% chance of a yes on that last one. I found an XP machine, used telnet (via PuttyTel.exe) and IE6 to set this up, and I doubt we'll have to touch it again. Which is fine with us. But it would be nice if I could administer this thing from either (a) a linux box, or (b) my primary desktop which is windows 7. It looks like XPMode with IE6 on the virtual XP machine may be my only way to administer this type of switch via the web.

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• Outlook 2010, 2007 Sync problems after migration from SMTP to Exchange

  - by kirgy

  Our organization recently switched from an SMTP server to an Exchange server, since then several user's Outlook's are not synchronizing their emails as expected with the Exchange server. Our move over from an SMTP server to an Exchange server consisted of adding the new Exchange account alongside the existing SMTP account, drag-dropping/copy-pasting folders client-side from the SMTP account in the folder pane in outlook, to the newly created Exchange account. The problem happens when a user moves an email to a folder from their inbox or another folder. At this point the email disappears from Outlook client side. Re-syncing the folder, send/receive, closing/opening outlook and even system reboots do not make this email reappear. The Outlook web interface (OWA) reports the email is in fact in the folder they placed it in, and is not deleted. Doing a "search all mail items" for the emails shows that the email is still there; not deleted nor removed. To add to the confusion, when new folders are created and the email is placed in these folders, the synchronization happens without any issue both client side and server side. As the emails are appearing server side, we are confident to presume this is a client side issue. We have tried adding/removing accounts on one system which resulted in the same issue. This was a very long and slow process due to the sheer volume of emails (20gig+ from most users). We have tried reinstalling outlook restoring accounts from back-ups which has not resolved the issue. We also tried upgrading one system from outlook 2007 to outlook 2010 which, again, did not resolve the issue. We have experienced issues with a lot of emails disappearing during the copy-over process in which I'm not convinced it was the best route of migration, but nonetheless we are where we are. Can anyone suggest potential avenues of solutions to resolve this issue? Thank you. Systems: Windows 7 (10 systems) Windows XP (2 systems) Outlook 2007 (2 systems) Outlook 2010 (7 systems) Problem Outlook systems: Windows XP, Outlook 2007 x 1 Windows 7, Outlook 2007 x1 Windows 7, Outlook 2010 x 2

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• Can't find standalone Chrome Gmail client that I know exists

  - by Carson

  I'm on Windows. A couple years ago when I switched from Outlook to Gmail (Google Apps), Google provided this awesome little standalone gmail client that was just a single-purpose Chrome install. It launched like a normal application, stayed updated when I updated Chrome. It was Chrome in a separate application that launched only gmail, stayed logged in really well, and "felt" like a gmail mail client, with the gmail interface. It had it's own little red envelope icon, it was a windows app. (I remember there was no Mac equivalent.) I found it while looking through the "this is how you get your company to switch to gmail" documentation that Google provided. I just repaved my box and now I'm looking for this thing again, and I had no idea it would be impossible to find. I've spent literally 2 hours looking, searching, googling, etc. I'm losing my mind. Anyone know how I can get my hands on this? I used it all day every day for 2 years, so I know it exists :), but I can not find it. Any assistance would be gratefully received.

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• Windows file sharing with a private LAN when a public VPN is connected?

  - by netvope

  OS: Windows Vista My LAN interface is configured as a "private network". I want to have all the sharing and discovery features (Network Discovery, File Sharing, Public Folder Sharing, Printer Sharing, Password Protected Sharing, and Media Sharing), so I enabled them all. My VPN interfaces are configured as "public networks", and I do NOT want to have any of the above features. Now the problem is that if I disabled these sharing features while a VPN is connected, it affects both interfaces. I guess the Network and Sharing Center is probably an oversimplified tool that may not support multiple interfaces. Where can I tell Windows to enable sharing features for the private networks and not the public networks? For file sharing, I think I can disable "File and Printer Sharing for MS Networks" in each of the VPNs' properties. However, I will need to disable it every time I add a new VPN. Moreover, I can't find how to disable Media Sharing by this way. If this can be more easily done in Windows XP or 7, please let me know.

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• Free or Open Solution for Storing and Charting CSV data

  - by rrrfusco

  I'm presently storing CSV files, combining them, opening them in open office, creating pivot tables and then generating charts from the spreadsheet. I've looked at OOBase, but appending csv files to base is clunky for some reason. SQLite seems like a good database solution, but I've haven't found a good charting program that connects to it with ease. Although open office (or libreoffice) maintains the references and allows you to update the information, this process is far from efficient. There are too many steps and it seems one program should handle all of these tasks. A better program would be more intuitive, allow you to simply add inserts into a database, and include an interface for standard charting settings. EDIT Simplest Automated Analysis and Chart Generation Tool? The above answer references Spotfire and Tableau, each of which has a free 14 and 30 day trial. Each program is nicely streamlined and designed. I'm looking for a program between this quality and LibreOffice. Can you recommend a better open or free desktop solution for windows?

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• How to redirect all Internet traffic to OpenVPN Server

  - by JuliaS

  I have seen working solutions around the issue of forcing Internet traffic to go through the OpenVPN server but they are all done in Linux, all I want to know is how to add an entry to the route table in windows to make this happen. connectivity between the client and server is fine, my Windows 7 client can establish a connection to the Windows 2008 Server, but when established Internet traffic is still going from the local Windows 7 machine. Here are the details: Server: Windows 2008 Server with one NIC OpenVPN IP Address: 192.168.0.1 Local NIC IP Address (connects the server to the Internet): 10.242.69.107 Client: Windows 7 with one NIC OpenVPN IP Address: 192.168.0.2 ISP allocated IP Address: 10.0.8.2 (gateway 10.0.8.1) Server OpenVPN Config: dev tun ifconfig 192.168.0.1 192.168.0.2 secret static.key push "redirect-gateway def1" Client OpenVPN Config: remote xxx.xxx.com dev tun ifconfig 192.168.0.2 192.168.0.1 secret static.key I'm not an expert with adding routes...etc. I would be grateful if someone could let me know how to add this entry in my server/client route table. EDIT: Output from the client's netstat -rnv IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 10.0.8.1 10.0.8.2 20 10.0.8.0 255.255.255.252 On-link 10.0.8.2 276 10.0.8.2 255.255.255.255 On-link 10.0.8.2 276 10.0.8.3 255.255.255.255 On-link 10.0.8.2 276 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 192.168.0.0 255.255.255.252 On-link 192.168.0.2 286 192.168.0.2 255.255.255.255 On-link 192.168.0.2 286 192.168.0.3 255.255.255.255 On-link 192.168.0.2 286 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 10.0.8.2 276 224.0.0.0 240.0.0.0 On-link 192.168.0.2 286 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 10.0.8.2 276 255.255.255.255 255.255.255.255 On-link 192.168.0.2 286 ===========================================================================

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• KVM Guest with NAT + Bridged networking

  - by Daniel

  I currently have a few KVM Guests on a dedicated server with bridged networking (this works) and i can successfully ping the outside ips i assign via ifconfig (in the guest). However, due to the fact i only have 5 public ipv4 ip addresses, i would like to port forward services like so: hostip:port - kvm_guest:port UPDATE I found out KVM comes with a "default" NAT interface, so added the virtual NIC to the Guest virsh configuration then configured it in the Guest, it has the ip address: 192.168.122.112 I can successfully ping 192.168.122.112 and access all ports on 192.168.122.112 from the KVM Host, so i tried to port forward like so: iptables -t nat -I PREROUTING -p tcp --dport 5222 -j DNAT --to-destination 192.168.122.112:2521 iptables -I FORWARD -m state -d 192.168.122.0/24 --state NEW,RELATED,ESTABLISHED -j ACCEPT telnet KVM_HOST_IP 5222 just hangs on "trying" telnet 192.168.122.112 2521 works [root@node1 ~]# tcpdump port 5222 tcpdump: WARNING: eth0: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes 23:43:47.216181 IP 1.152.245.247.51183 > null.xmpp-client: Flags [S], seq 1183303931, win 65535, options [mss 1400,nop,wscale 3,nop,nop,TS val 445777813 ecr 0,sackOK,eol], length 0 23:43:48.315747 IP 1.152.245.247.51183 > null.xmpp-client: Flags [S], seq 1183303931, win 65535, options [mss 1400,nop,wscale 3,nop,nop,TS val 445778912 ecr 0,sackOK,eol], length 0 23:43:49.415606 IP 1.152.245.247.51183 > null.xmpp-client: Flags [S], seq 1183303931, win 65535, options [mss 1400,nop,wscale 3,nop,nop,TS val 445780010 ecr 0,sackOK,eol], length 0 7 packets received by filter 0 packets dropped by kernel [root@node1 ~]# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere 192.168.122.0/24 state NEW,RELATED,ESTABLISHED Chain OUTPUT (policy ACCEPT) target prot opt source destination All help is appreciated. Thanks.

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• How to Move SMS from iPhone to Mac?

  - by seda16

  SMS is the main form to Communicate with others, you would saved many messages on your iPhone. Well, there're many reasons you need to backup your iPhone sms to the Mac. For example, your family or friends have sent you some important and you want to save them on your iPhone in case you delete them by accident, or you just need to backup your sms for other use. So today let's talk about how to move sms from iPhone to Mac. It would be very easy if you use an app to help you, I always use the iPhone to Mac transfer on Amacsoft to copy sms from iPhone to Mac. Now let me tell you how to use this great app: Step 1:Connect iPhone to Mac First of all, you need to install and launch the iPhone to Mac transfer, then connect your iPhone to Mac. The iPhone to Mac transfer would recognise your iPhone automatically. And all information of your iPhone will be shown on an interface. Step 2:Select sms and Start the Export Now you can see many choice on the left, find "SMS" and click it, all sms on your iPhone will be listed on the right. Select and check those you want to move, then just click "Export" on the top to start the transfer. Wait just a few a minute the transfer will be done. Great! You have finish the transfer now, it's really very easy, right? I believe it won't be a problem if you want to transfer your sms from iPhone to Mac. By the way you can also use this Amacsoft iPhone to Mac transfer to move other kind of files , like photos, songs etc. If you're a windows user, you can use iPhone to PC transfer on this web to move sms from iPhone to your PC just with the same steps, good luck!

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• Problems with OpenVPN setup

  - by user70617

  Hi, I'm trying to set up a VPN server using OpenVPN and I'm getting some errors while trying to connect the client to the server. I'm getting the following error: Sun Feb 13 14:54:16 2011 OpenVPN 2.1.4 i686-pc-linux-gnu [SSL] [LZO2] [EPOLL] built on Feb 5 2011 Sun Feb 13 14:54:16 2011 IMPORTANT: OpenVPN's default port number is now 1194, based on an official port number assignment by IANA. OpenVPN 2.0-beta16 and earlier used 5000 as the default port. Sun Feb 13 14:54:16 2011 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables Sun Feb 13 14:54:16 2011 ******* WARNING *******: all encryption and authentication features disabled -- all data will be tunnelled as cleartext Sun Feb 13 14:54:16 2011 RESOLVE: NOTE: localhost resolves to 2 addresses Sun Feb 13 14:54:16 2011 Note: Cannot ioctl TUNSETIFF tap0: Device or resource busy (errno=16) Sun Feb 13 14:54:16 2011 Note: Attempting fallback to kernel 2.2 TUN/TAP interface Sun Feb 13 14:54:16 2011 Cannot open TUN/TAP dev /dev/tap0: No such file or directory (errno=2) Sun Feb 13 14:54:16 2011 Exiting I have bridge-utils installed and tap0 shows up in ifconfig. Can anybody give me a hand? Thanks in advance.

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• VPN Device behind router/firewall

  - by David Steven

  ROUTER A: Peplink 310 serving as the gateway/router/firewall at one location. ROUTER B: Linksys RV082 serving as the gateway/router/firewall at another location. I want to VPN these two locations together. The Peplink has a PPTP server and has proprietary site-to-site vpn if you had another peplink device. The Linksys has an IPsec vpn server. VPN A: I also have another spare linksys rv082. I'm trying to setup the other rv082 (VPN A) behind the peplink (ROUTER A) and get VPN A to talk to ROUTER B. I setup VPN A with a lan ip address and plugged one of it's LAN ports into the LAN. I was able to get to it's web interface fine. On ROUTER A I one-to-one nat mapped one of our public ip's to the LAN IP for VPN A. I opened TCP 50-51 and UDP 500 to VPN A. I configured the VPN settings on VPN A to connect to ROUTER B. I did the opposite for ROUTER B. But the vpn doesn't connect. Then I tried pluging VPN A's wan port into the lan, and gave it another LAN IP. I thought perpahs VPN A didn't want to send VPN traffic out over the LAN and wanted do send it over it's WAN. The vpn still doesn't connect. It what I'm trying to do even possible?

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• Recommended programming language for linux server management and web ui integration

  - by Brendan Martens

  I am interested in making an in house web ui to ease some of the management tasks I face with administrating many servers; think Canonical's Landscape. This means doing things like, applying package updates simultaneously across servers, perhaps installing a custom .deb (I use ubuntu/debian.) Reviewing server logs, executing custom scripts, viewing status information for all my servers. I hope to be able to reuse existing command line tools instead of rewriting the exact same operations in a different language myself. I really want to develop something that allows me to continue managing on the ssh level but offers the power of a web interface for easily applying the same infrastructure wide changes. They should not be mutually exclusive. What are some recommended programming languages to use for doing this kind of development and tying it into a web ui? Why do you recommend the language(s) you do? I am not an experienced programmer, but view this as an opportunity to scratch some of my own itches as well as become a better programmer. I do not care specifically if one language is harder than another, but am more interested in picking the best tools for the job from the beginning. Feel free to recommend any existing projects that already integrate management of many systems into a single cohesive web ui, except Landscape (not free,) Ebox (ebox control center not free) and webmin (I don't like it, feels clunky and does not integrate well with the "debian way" of maintaining a server, imo. Also, only manages one system.) Thanks for any ideas! Update: I am not looking to reinvent the wheel of systems management, I just want to "glue" many preexisting and excellent tools together where possible and appropriate; this is why I wonder about what languages can interact well with pre-existing command line tools, while making them manageable with a web ui.

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• iOS 6 in-app email does not send from within any app that supports it

  - by Joe Termine

  A strange problem -- Last night I upgraded to the final release of iOS 6 on my iPhone 4S and my iPad 2. When I open an app that allows you to send emails from within the app (e.g. adobe Reader, TurboScan, etc.) -- doesn't matter which one -- I am prompted with the email dialog from within the app, I can compose the message, but when I go to send one of two things will happen: either the email sending sound will "swoosh" and the dialog will close (leading me to think it worked) or some apps with good error handling will say there is an "error sending email." The error logs on my device are not reporting errors. It's just that the email doesn't really send. I have two Exchange mail boxes on these devices. One connects to a corporate network hosting on-premise exchange 2007 and the other connects to Gmail over the exchange interface. Have attempted to delete and re-pair these accounts (one at a time) without any change. I'm wondering if others are experiencing this problem, or whether I should just wipe the devices and chalk it up to (another) failed upgrade. Thoughts much appreciated. Joe

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• netconfig won't change DNS on opensuse 12.2

  - by Krystian

  I'm trying to update my dns servers after openvpn connection, but netconfig won't do that for me. Here's how I'm trying to do it [manually now]: /sbin/netconfig modify -v -i tap0 -s openvpn <<-EOF INTERFACE='tap0' DNSSERVERS='10.10.0.1' EOF And here's the verbose output: debug: lockfile created (/var/run/netconfig.pid) for PID 5530 debug: lockfile created debug: write new STATE file /var/run/netconfig//tap0/netconfig0 debug: Module order: dns-resolver dns-bind dns-dnsmasq nis ntp-runtime debug: dns-resolver module called debug: Static Fallback debug: Use NetworkManager policy merged settings debug: exec get_dns_settings: /var/run/netconfig/NetworkManager.netconfig debug: get_dns_settings: service 'NetworkManager' => rank '1' debug: get_dns_settings: DNS_SEARCHLIST_1='mydomain.com' debug: get_dns_settings: DNS_SERVERS_1='192.168.0.1' debug: exit get_dns_settings: /var/run/netconfig/NetworkManager.netconfig debug: write_resolv_conf: ' mydomain.com ' ' 192.168.0.1 ' debug: No changes for /etc/resolv.conf debug: dns-bind Module called debug: dns-dnsmasq Module called debug: nis Module called debug: Static Fallback debug: Use NetworkManager policy merged settings debug: exec get_nis_settings: /var/run/netconfig/NetworkManager.netconfig debug: exit get_nis_settings: /var/run/netconfig/NetworkManager.netconfig debug: set_nisdomainname: eth0 24 debug: set_nisdomainname: => yes debug: set_nisdomainname: old[]=, new[24]= debug: format_yp_conf called with : debug: Using static fallback debug: format_static[0] called debug: No changes for /etc/yp.conf debug: nis domainname '' is up to date debug: ntp-runtime Module called debug: Static Fallback debug: Use NetworkManager policy merged settings debug: exec get_ntp_settings: /var/run/netconfig/NetworkManager.netconfig debug: get_ntp_settings: NTP_SERVER_LIST='' debug: exit get_ntp_settings: /var/run/netconfig/NetworkManager.netconfig I've been trying to find something relevant on the web, but failed to do so. I have no other clue on how to progress with this issue. Any thoughts?

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