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  • a brand new FS based on a database without using fuse

    - by Devrim
    hi all, To serve millions of files out of a single directory, being able to connect to a drive from hundreds of endpoints, and for some other reasons (to avoid gluster/nfs/all fs based networking solutions), I want to evaluate the possibility of making a filesystem that's based on a mongodb (or any other). Basically, it works like fusefs, every single file is kept in mongo gridfs. In theory, I do, mount mongodbfs /mountPoint mongodb://localhost then when i say touch /mountPoint/test.txt this file is inserted into mongodb. This FS will also store uid/gid and perms with the file, we can throw hundreds of servers to it, and no useradd will be necessary. I'm not thinking to include all the features of FS, just the ones we need. My question is, how do I start my quest in finding resources, books, links, people, developers who'd help me implement this? at least a proof of concept. Is it feasible? What should I expect as a timeline for such undertaking? Please only think about gazillion small files and folders.

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  • HP Laptop recognizes hard drive just long enough to install windows

    - by Joe
    I have an HP laptop, DV6500 (CTO). It refused to boot one day, so I ran some diagnostics (a friend lent me "Hirens Boot Disk", "UBCD" and "PC DR 6"). Everything passed, except for the hdd. I replaced the HDD with a used drive of unknown condition. Installed windows with no problems. Installed the wireless driver, tried to reboot ... no luck. So I went to Best Buy, bought a brand new Western Digital 320gb HDD. Put it in the machine, installed windows (vista home premium). Installed the wired networking driver. Tried to reboot. No luck. Put the first hdd back in the machine, reinstalled windows. Started to install some drivers, went to reboot, and the machine won't come back to life. Put the second hdd in the machine, rinse wash and repeat. I've replaced the memory, even though it passed diagnostics. Problem exists with both brand new memory, and old memory. The BIOS recognizes the hard drive. The computer freezes directly after the bios splash screen, and there is no hard drive activity light. I've tried two linux live distros (gentoo and ubuntu). Neither would run on this laptop, but will on a different HP laptop. UBCD and Hirens Boot Disk both ran, as did PC Doctor 6 which refuses to test anything (gets stuck at "enumerating hard disks"). Is there anything else I can try?

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  • Windows Server 2008 R2 Virtual Network Setup

    - by jpearl01
    Some background: I'm very much new to networking in general, and virtualization in particular. I'm trying to set up a series of VMs as we are transitioning to a thin client setup. I have been supplied a limited number of static ip addresses. The server is located in an offsite building which houses the network we use to connect to the internet, share folders etc. The setup I've been trying to go for is this: The host OS (Windows Server 2008 R2) is bound to one nic using one of the static ips (say, Nic1 and ip 10.255.6.61). I've set up another external virtual network attached to another physical nic , and a virtual private network attached to no nic. There is one VM running the same os (as the host). This VM is connected to both the external virtual network (and uses another static ip say Nic2 and ip 10.255.6.62) and also to the virtual private network (I gave it a static random ip 192.168.88.1 subnet mask 255.255.255.0). This virtual private network is connected to all the other VMs. I'd like to share the internet connection with all the other VMs on the private virtual network, and so I installed the RRAS role on the server connected to Nic2, and selected the option to share the internet over the vpn. I've run through the RRAS wizard a few times, trying different configurations, but none of them seem to be letting the other vms connect to the 'net. The vms seem to connect to the virtual private network fine, they are assigned an ip address and everything, but no internet, and no rest of the network either. The other problem is in general I connect to the vms with RDP. Will that be possible with a setup like this? i.e. will the vms show up as computers on the network? If not, what are my other options? Thanks! ~josh

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  • How to setup a hyper-v domain with internet access

    - by fynnbob
    First off let me say that I'm not a network admin or server guy, I know very little about that stuff. What I'm trying to do is setup a virtualized domain using hyper-V. Here is the configuration: Physical Server: 4Mb RAM Windows Server 2008 R2 running Hyper-V Virtual Environment: One Domain Controller running Windows Server 2008 R2 One Client running Windows Server 2008 R2 I have been successful in setting up a virtual domain controller and adding a virtual client to that domain controller but I'm stuck at trying to give the virtual Environment Internet access. I can give the client VM Internet access if I remove them from the virtual domain but once I add them back to the virtual domain, Internet access is gone. I've read articles describing many different ways this can be done (using RRAS with NAT, using a wireless connection, etc...) but all of those articles only cover a small piece of the setup and also seem to be geared towards people who know there way around networking and servers which I don't. I'd like to know more but my thing is software development and I have my hands full trying to keep up with everything in that realm. I simply want to setup a virtual domain with Internet access for testing. Can anyone point me to any "for Dummy's" type information on how to setup this type of environment or can anyone provide this kind of step-by-step help. Any help would be very much appreciated.

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  • Connect trough remote computer connection

    - by Didac
    First, sorry for my english and my poor knowlodge of this subject. I have a dedicated server placed in Germany (windows 2008 R2) and I live in spain. I would like to access internet from my home computer (Windows 7 Pro x64), trough my server in Germany, so I can use a German IP, what I need some times. I have complete acces in to both computers, but I just don't know where to start. (My knwoledge is limited to software development :/ ) I'd like to know where to start, if I need to create a VPN and so.. Thanks in advance! Update 1 I tried a lot of options of OpenVPN, but I sadly I know nothing abuot networking, so I have to accept I do not know what I'm doing :( Here are my config files (note most of the options are from the sample config files). server.conf #server config file start port 1194 proto udp dev tun server 10.0.0.0 255.255.255.224 #you may choose any subnet. 10.0.0.x is used for this example. ca "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\ca.crt" cert "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\server.crt" key "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\server.key" dh "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\dh1024.pem" push "redirect-gateway def1" push "dhcp-option DNS 8.8.8.8" #the following commands are optional keepalive 10 120 comp-lzo persist-key persist-tun verb 5 #config file ends client.conf #client config file start client dev tun proto udp remote 176.9.99.180 1194 resolv-retry infinite nobind persist-key persist-tun ca "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\ca.crt" cert "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\client1.crt" key "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\client1.key" ns-cert-type server comp-lzo verb 5 explicit-exit-notify 2 ping 10 ping-restart 60 route-method exe route-delay 2 # end of client config file And here's the server's network settings: IP address: 176.9.99.180 Subnet mask: 255.255.255.224 Default gateway: 176.9.99.161 Preferred DNS server: 127.0.0.1

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  • How To Monitor Home Wireless Network Connected Devices Bandwith

    - by GWLlosa
    (Originally posted on SuperUser, not sure if it might be better suited here) I have in my home a standard Comcast cable internet connection. I have it going from the wall to a cable modem, and from the modem to a late-series Linksys router, which provides wired and wireless networking. The vast majority of the users are wireless connections. For day-to-day tasks, this connection is fully sufficient for all my needs. However, on regular occassions, we have social gatherings that involve many people bringing laptops and other PCs and using the network and internet simultaneously, frequently for gaming. I have no administrative oversight over these machines; they have been known to be riddled with spyware and/or bloatware or be running torrents, legal or otherwise. The only reason I care is that on a regular basis, one of the machines will flatline my internet bandwith, and consume it all in order to upload/download/spam people/whatever. When this happens, the latency of the connections for gaming and the like becomes unacceptable, and everyone suffers. My question is: Is there a system I can set up whereby I can easily monitor the various systems connected to my wireless connection, see how much bandwith each one is using, and for what ends? That way, at a glance, I can spot the offending machine and kick it from the connection, without having to go from machine to machine, checking each one's "bandwith used" properties manually, and dealing with the owner's indignant protests all the while. I understand this will likely involve 3rd-party software and/or hardware; my issue is I don't even know where to begin.

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  • Sharing between Vista and Windows 7

    - by Metro Smurf
    Vista Ultimate 32 bit Windows 7 Ultimate 64 bit I've read through similar questions about sharing between Win7 and Vista, but none of them have resolved my issue of not being able to share between Win7 and Vista: Connecting to a Vista shared folder from Windows 7 Networking Windows 7 and Vista Enable File sharing in Windows Vista Previously I had previously had my Vista and XP system sharing back and forth without any problems. I was able to access the shares without entering a user name / password in the NT challenge prompt (note: account names and passwords were different on the Vista and XP systems). Currently I replaced my XP system with a Win7 system. Now, when I attempt to access shares to/from Vista / Win7, I am continually prompted with an NT challenge to enter my credentials. Things I've Verified/Tried Both systems are on the same workgroup. Win 7 is using the Home network. Vista is using the Private network. In other words, neither system is using a Public network profile. Enabled file sharing with and without password protection on both Vista and Win7 Tried HomeGroup Connections (win7) with Windows to manage connections and Use user accounts to connect. Reviewed too many online articles to count to trouble shoot. Set the shares to have full control by everyone. Set up the shares directly on the directory and through the share manager. My Question How can I enable file sharing between Vista and Win7 without being prompted with a username/password challenge, ever?

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  • Vmware Workstation, Win7 host, Ubuntu guests with Nat + Host-only networks but they cannot connect to the Internet

    - by Ikon
    I have a Win7 host machine with Vmware Workstation. In the workstation I have 3 Ubuntu installed. All 3 Ubuntu guests have a Nat network - to access the internet without asking the router for a local address - and a Host-only network - to connect all Ubuntu quests and the host in a private network for internal communication, without touching the router. When I try to make any of the Ubuntu quests to get data from the internet - assuming that they would figure out that the Nat-ed interface can access the requested data - they fail and report that there is no route to my query. If I disconnect the 2nd interface on the Ubuntu guests with the Host-only network and restart networking, they start to know the route to the internet. Odd, during the installation of the guests they asked which of the 2 given interfaces - with Nat and Host-only config - should be used to get updates during installation and they oddly managed to get the updates. Not so after the installation has finished and rebooted. I have checked the Virtual Network Editor that the Nat interface should use my real network card to access the net, so there should be no problem. I wish not to use the router's dhcp service to give the Ubuntu quests an address, and also I don't want the guests to be accessable from the local network directly, but only by the host - that's the Host-only network is for. Any suggestions? Edit: 192.168.189.0 is the Nat interface and 192.168.7.0 is the Host-only. $ route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.7.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.189.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 0.0.0.0 192.168.189.2 0.0.0.0 UG 100 0 0 eth0

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  • MySQL config for 2GB ram

    - by Tiffany Walker
    How is my config? Does it work well for 2GB? What would be an ideal config for a 2GB ram server? [mysqld] set-variable = max_connections=500 log-slow-queries safe-show-database local-infile=0 skip-networking symbolic-links=0 max_connections = 500 key_buffer = 256M myisam_sort_buffer_size = 64M join_buffer_size = 2M read_buffer_size = 2M sort_buffer_size = 2M read_rnd_buffer_size = 2M thread_concurrency = 16 table_cache = 1024 thread_cache_size = 50 wait_timeout = 7200 connect_timeout = 10 tmp_table_size = 32M max_allowed_packet = 160M max_connect_errors = 10 query_cache_limit = 1M query_cache_size = 32M query_cache_type = 1 [mysqld_safe] open_files_limit = 8192 [mysqldump] max_allowed_packet = 16M [myisamchk] key_buffer = 64M sort_buffer = 64M read_buffer = 16M write_buffer = 16M UPDATE 2012-03-28 12:58 EDT By RolandoMySQLDBA Please run these queries and paste them into your question: For MyISAM SELECT CONCAT(ROUND(KBS/POWER(1024, IF(PowerOf1024<0,0,IF(PowerOf1024>3,0,PowerOf1024)))+0.4999), SUBSTR(' KMG',IF(PowerOf1024<0,0, IF(PowerOf1024>3,0,PowerOf1024))+1,1)) recommended_key_buffer_size FROM (SELECT LEAST(POWER(2,32),KBS1) KBS FROM (SELECT SUM(index_length) KBS1 FROM information_schema.tables WHERE engine='MyISAM' AND table_schema NOT IN ('information_schema','mysql')) AA ) A, (SELECT 2 PowerOf1024) B; For InnoDB SELECT CONCAT(ROUND(KBS/POWER(1024, IF(PowerOf1024<0,0,IF(PowerOf1024>3,0,PowerOf1024)))+0.49999), SUBSTR(' KMG',IF(PowerOf1024<0,0, IF(PowerOf1024>3,0,PowerOf1024))+1,1)) recommended_innodb_buffer_pool_size FROM (SELECT SUM(data_length+index_length) KBS FROM information_schema.tables WHERE engine='InnoDB') A, (SELECT 2 PowerOf1024) B;

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  • Steps to deploy a custom routing protocol

    - by user134589
    I'm a Ph.D Student and I'm researching a Service Centric Networking architecture with resourceallocation on a large scale. What I'm looking to do is expand an existing routing protocol like OSPF with extra fields and some new message types that I need for communication between Nodes. I want to manipulate the cost of a network link and I want paths to be calculated like in OSPF V2/v3, but using the cost that my algorithms have calculated. What I have I have the source code of OSPF from Quagga. I am assuming I can edit this code how I want, including packet structures and creating new types. Yes, I am aware it won't be easy but this is a 6 years research project and I am eager to develop something new, to move forward. What I need I would like to know how I can deploy the edited OSPF source files I have (written in C) on any type of server. I have a large testbed environment available with hundreds of virtual nodes and pretty much any OS out there. So if I want to test my extended protocol, how do I make all the nodes in a network use this to communicate? I do not understand what parts of the kernel I need to edit here. I tried searching for days now and I am unable to find how to deploy a non-existing routing protocol, without the use of an application-level framework. If somebody could push me in the right direction that'd be awesome. note: I need this to be a routingprotocol and not an application, since I want this to work on op of the network layer for performance reasons. Thanks!

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  • ownership of hard drive recoveery of files Windows 7

    - by Jeff
    Here is the issue. I have an old laptop that died that was running xp. I now have a win 7 laptop. I need to get the files off the old drive. Win 7 will not let me take ownership of the drive. I can runn the comand prompt in regular mode and do a dir on the drive that shows up as Q: drive in regular mode. I gives me the volume as c and the serial number. I can not take ownership in regular mode with the comand prompt or other means. Microsoft site says use safe mode with networking. So I go to safe mode the drive shows up as G: in safe mode. I use the comand prompt Takeown /f G: and get the device is not ready error. I am at a loss. All I want is to retrieve my files from this drive. Any ideas or sugestions. I don't see how you can dir and get some info in one mode and not acces it in another. I have to get ownership and permissions fixed to get in the drive to get my files. Thanks in advance. I might add that I am using a usb3.0 to ide/sata cable adapter. Software came with the device but I can't make heads or tails out of the manual to know if any of the software can help me. The soft ware is PCClone Ex lite, and Clone Drive Soft ware

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  • Adding Multiple Interfaces to EC2 Ubuntu 12.04

    - by nocode
    I have a m1.medium Ubuntu 12.04 instance with two ENI's. I have a VPC setup with a private and public subnet. Private: 10.50.1.0/24 Public: 10.50.101.0/24 I initiated the instance on the private subnet. I configured a NAT instance and route all servers in the private subnet internet access. The route tables on the private subnet point towards the NAT instance and the route table on the public subnet point to the internet gateway. I am trying to add a public interface on the machine so that I can put it behind a ELB. When I added the second ENI and configured a static IP in /etc/network/interfaces and restarted the network services, I can no longer access from the Public subnet to the Private Subnet. Works Private private Private public Does not work Public private From Public Private, I ran a TCPDUMp on the private machine and can see the request coming in. My guess is it's trying to route over the new Public interface instead of the Private. Here's my route: default 10.50.1.1 0.0.0.0 UG 100 0 0 eth0 10.50.1.0 * 255.255.255.0 U 0 0 0 eth0 10.50.101.0 * 255.255.255.0 U 0 0 0 eth1 My networking knowledge is limited and I believe I have to add some routes but unsure of what command/syntax needs to be.

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  • Permission denied (publickey,gssapi-with-mic,password) ssh error

    - by zentenk
    Heads up I'm a noob with linux and networking. I set up a ubuntu server and I have a static ip for my network. When I try to connect to the server at home (external), it prompts me to log in. I supply the correct password (or incorrect pw), I get the error Permission denied, please try again. and after 3 times I get Permission denied (publickey,gssapi-with-mic,password) I am however able to connect with SSH from another computer in the same network with ssh < internal ip of server > I'm connecting with mac os x and my config file is vanilla. Note: During installation of ubuntu it says I don't have a default route or something while doing auto network configuration, but I ignored it and continued the installation, could this be the problem? EDIT: I have tried the below, I have nothing in hosts.allow and also iptables shows the ports that I have allowed, which is 22. I checked the auth.log, and there is nothing when I connect to it remotely (even when it says permission denied). I have tried connecting to it internally and the correct authentication logs show. Any idea whats wrong?

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  • 100% uptime for a web application

    - by Chris Lively
    We received an interesting "requirement" from a client today. They want 100% uptime with off-site failover on a web application. From our web application's viewpoint, this isn't an issue. It was designed to be able to scale out across multiple database servers, etc. However, from a networking issue I just can't seem to figure out how to make it work. In a nutshell, the application will live on servers within the client's network. It is accessed by both internal and external people. They want us to maintain an off-site copy of the system that in the event of a serious failure at their premises would immediately pick up and take over. Now we know there is absolutely no way to resolve it for internal people (carrier pigeon?), but they want the external users to not even notice. Quite frankly, I haven't the foggiest idea of how this might be possible. It seems that if they lose Internet connectivity then we would have to do a DNS change to forward traffic to the external machines... Which, of course, takes time. Ideas? UPDATE I had a discussion with the client today and they clarified on the issue. They stuck by the 100% number, saying the application should stay active even in the event of a flood. However, that requirement only kicks in if we host it for them. They said they would handle the uptime requirement if the application lives entirely on their servers. You can guess my response.

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  • HP/IBM alternative to Buffalo iSCSI TerraStation?

    - by Robin Day
    I'm looking at virtualising some of our infrastructure in order to allow for more resiliance and future expandability. We have successfully virtualised on single servers with Direct Attached Storage and are now looking for a more future proof solution using a high powered host (or two) and a SAN (or two). I'm thinking that the host machine will probably be an HP ProLiant DL360 G7 (all of our exisiting infrastructure is HP). Unfortunately, I am new to the world of SANs. From what I can see, the Buffalo Terrastation III is all I would need in order to setup an iSCSI SAN for VMWare to use. However, I'm a little reticent to go that way as it's a bit too "entry level" for my liking. In particular I would be very keen for more redundancy, power, networking, etc. I'm also very aware that you "get what you pay for". Therefore, can anyone reccommend equivalents from the big boys? HP/IBM? I have searched high and low on the HP site and seen many options but am struggling to work out if it is all the hardware I will need. Some options appear to need separate controllers from disk enclosures, etc.

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  • How to improve Samba performance on VirtualBox machine?

    - by ColinM
    I am running a Windows 7 64bit host and Ubuntu 9.04 32bit guest inside of VirtualBox 4.0.0 on a laptop which has internet connectivity via Wifi. The main use is writing code for which I use Netbeans. My dev environment is hte virtual machine and I use Samba on the VM to share the code directory so that I can use Netbeans on the host as my IDE. Unfortunately Netbeans does a lot of disk access and due to the poor Samba performance it makes the IDE hardly usable. How can I improve performance of the Samba share? On my desktop it isn't so bad but I don't know what the difference would be since they are similar setups (Win 7 hosts, cloned guests, SSDs, Vbox guests using SATA in AHCI mode, etc..). With Bridged networking is the performance between the host and guest limited by the physical hardware (Intel 6200 AGN on laptop)? I switched to Host-only and it didn't seem to improve performance at all. To clarify bad performance, I used 7zip to zip a project directory and got 19kbs to 500kbs depending on the size of the files being zipped. On my desktop it was in the ~10mbs range. Any tips for VirtualBox/Samba configuration to get improve the performance? I am using Samba 3.3.2. Hopefully Samba with SMB2 support will be released soon..

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  • How do i play nicely with MS SQL/SQL Server 2008

    - by acidzombie24
    Big problem. I have nearly given up. I am trying to port my prototype to use MS SQL so it will work on a server once i get it (the server will be SQL Server 2008, shared, i dont know any more info). So i tried to connect to SQL Server via visual studios IDE and had no luck. I enabled TCP and named pipes and restarted the service (and computer) with still no luck. I remembered about mdf files so i made that after an obstacle of not being able to make the connect string require i figure out visual studio has it in its properties and successfully connected with that. Then i had a problem with nested transactions. After not being able to figure out how to check i wondered if i can configure it to allow it somehow. I always thought all of MS were the same except for limitations but sql server seems to support nested transactions so theres no point trying to work around the problem with .mdf files since i wont need them and really just used it to port the base of my sql code and to check if syntax is correct. I tried installing SQL Server Management Studio since people mentioned it several times (as a solution or at least help). When installing it on windows 7 it says it may not be compatible. After running it, it launched SQL Server Installation Center (64-bit) which doesnt seem to be the same thing as i dont see a way to modify any of my server (networking) configurations or edit user permissions, etc. I am clueless what to do next. Does anyone have any ideas? I'm posting here bc i think my problem is more configurations and sql server then programming.

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  • What is the max connections via remote desktop for a small server?

    - by Jay Wen
    I have a small server running MS Server 2012. The CPU is a Xeon E3-1230 V2 @ 3.30GHz, 4 Cores, 8 Logical Processors, 8 GB RAM. Main HD is a Samsung 840, and the big storage is a 4 disk WD Black Raid 10 Array in a Synology NAS enclusure. My question is: given this hardware, approximately how many users can the system support via "Remote Desktop Connection"? Assume there are no licensing limits. These are not admin users. I know there is a two admin limit. This boils down to: What resources does one remote connection require? RAM? % of the CPU? Networking bandwidth? I guess the base case would be for a conection where the user is inactive or simply browsing cnn. Once you know this, you know how many you could fit on the machine before something is maxed-out. In reality, users would be mostly on Excel (multi-MB spreadsheets). I know the approx. resources currently required by each copy of Excel.

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  • Cannot configure hostname keeps on changing after reboot CentOS 6 + nginx [on hold]

    - by The Wolf
    I just finished this tutorial I found online: http://www.unixmen.com/install-lemp-nginx-with-mariadb-and-php-on-centos-6/ Now, I am having trouble making a hostname, you can see the result at: http://www.intodns.com/busilak.com here are my confs /etc/hosts 127.0.0.1 localhost.localdomain localhost localhost4.localdomain4 localhost4 # Auto-generated hostname. Please do not remove this comment. 198.49.66.204 host.busilak.com busilak.com host ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 /etc/sysconfig/network NETWORKING="yes" GATEWAYDEV="venet0" NETWORKING_IPV6="yes" IPV6_DEFAULTDEV="venet0" HOSTNAME="host.busilak.com" /etc/nginx/conf.d/default.conf server { #listen 80; #server_name host.busilak.com; #charset koi8-r; #access_log logs/host.access.log main; location / { root /usr/share/nginx/html; index index.html index.htm; } error_page 404 /404.html; location = /404.html { root /usr/share/nginx/html; } Question: Is there anything I should have done? I just want to use my domain: busilak.com as default domain for my server, such that when I open busilak.com it would point readily to my VPS ip address.

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  • Ubuntu + LigHTTPd: Server requests taking ages

    - by ctrl_freak
    I've had an issue since upgrading my distro a couple of weeks ago from hardy; receiving data after making a request has increasing intervals of nothing, as you can see from the picture below. http://i49.tinypic.com/2w5lvr9.png I have since reinstalled fresh from an Ubuntu 10.04 Server (i386) disk, but am still having the same issues. I'm running on a LigHTTPd, MySQL, PHP5 stack. The surprising thing is, that local browsing using lynx is super fast, as expected. Initially, after reinstalling, I copied over the old configuration files from the previous installation, but have since reinstalled LigHTTPd and rebuilt the config file from scratch. The only correlation I could find, was that I attempted installation of ionCube and Zend Optimizer for a script I was testing, however I would think that it could no longer impact seeing I had reinstalled the OS. I have also removed Suhosin just in case, however it had no impact. I'm thinking it possibly has something to do with networking, but I wouldn't know where to start. The server is manually assigned an IP by it's MAC address on the router. The fact that the time seems to be exponential (to a point) worries me. I've tried strace'ing the LigHTTPd and MySQL processes, however I couldn't see anything obvious, not that I'd really know what I'm looking for. RAM and CPU usage don't seem to be out of the ordinary, but I can't say its perfect.. I'm hoping someone has experienced the same, or can point me in a direction, as searching has proved fruitless as I don't know anything specific. Config files can be posted, if requested.

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  • 403 Forbiden on Apache (CentOS) Server

    - by pouya
    These are my VM setup: HOST: windows 7 ultimate 32bit GUEST: CentOs 6.3 i386 Virtualization soft: Oracle virtualBox 4.1.22 Networking: NAT -> (PORT FORWARD: HOST:8080 => GUEST:80) Shared Folder: centos all the project files goes into shared folder and for each project file a virtualhost conf file is created in /etc/httpd/conf.d/ like /etc/httpd/conf.d/$domain I wasn't able to see anything in my browser before disabling both windows firewall and iptables in centos after that if i type for example: http://www.$domain:8080/ all i see is: Forbidden You don't have permission to access / on this server. Apache/2.2.15 (CentOS) Server at www.$domain.com Port 8080 A sample Virtual Host conf file: <VirtualHost *:80> #General DocumentRoot /media/sf_centos/path/to/public_html ServerAdmin webmaster@$domain ServerName www.$domain ServerAlias $domain *.$domain #Logging ErrorLog /var/log/httpd/$domain-error.log CustomLog /var/log/httpd/$domain-access.log combined #mod rewrite RewriteEngine On RewriteLog /var/log/httpd/$domain-rewrite.log RewriteLogLevel 0 </VirtualHost> centos shared folder is availabe to guest at /media/sf_centos These are file permissons for sf_centos: drwxrwx--- root vboxsf vboxsf group includes: apache and root So these are my questions: 1- How to solve Forbidden Problem? 2- How to setup both host and guest firewalls? 3- How can i improve this developement environment to simulate production environment as much as possible specially security improvements?

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  • Routing WIFI and LAN for specific traffic

    - by jakebird451
    I have two network devices aboard my macbook pro: WIFI (en1): Used for general traffic. Connects to an ip of 192.168.19.* via DHCP LAN (en0): Used for specific traffic. Connects to an ip of 192.168.2.10 as a static IP. Does not connect to a router, only a switch for direct routing connection. I have 4 IP addresses I need to access on the LAN: 192.168.2.1 192.168.2.21 192.168.2.20 192.168.2.30 The rest of the traffic needs to go to WIFI. I have tried setting up a routing table for the specific ip addresses, but I only managed to mess up my network. I do not venture out into the world of networking too often, but this was the latest command I have been trying: sudo route add -host 192.168.2.30 -interface en0 This command killed my ability to use ping. It told me that ping could not allocate memory (is that even possible)? It also killed my wifi access. Logging out and back in fixed the issue. I really do not mind to make this solution permanent, so I am fine with a temporary routing.

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  • Is it possible to to create a live linux iso containing a win xp virtual machine?

    - by mark
    I would like to have a Linux live system that contains a Windows xp virtual machine. This would be run from a bootable USB flash drive. My attempts so far have been unsuccessful. I created a Lubuntu 12.04 virtual machine with VMware. I updated and configured it to my needs, and installed Virtualbox. I then created a Windows xp vm with Virtualbox in the Lubuntu vm. I tested everything and everything worked, including USB devices. I installed Remastersys in the Lubuntu vm, copied the xp vm folder to the /etc/skel folder then created the custom iso with remastersys. I burned the iso and tested it on a laptop. It worked flawlessly. All programs and wireless networking worked. My problem was the xp vm. Virtualbox started fine but would not run the vm. I have the following error: Result Code: NS_ERROR_FAILURE (0x80004005) Component: VirtualBox Interface: IVirtualBox {c28be65f-1a8f-43b4-81f1-eb60cb516e66}. I ran remastersys again changing the permissions on the skel folder to R W for everyone. I also logged into Lubuntu as root and ran remastersys again. Each iso I created worked fine but would not start the xp vm inside. The last attempt virtualbox gave me an access error stating it can not access the virtual disk. Is what I want to do possible? In theory I don't see why it would not work. Is it a permissions issue? Should I create the iso then add the xp vm after by editing the iso by hand? Using a vm and not real hardware as a build machine a problem? Any ideas? keep any responses in laymens terms. I am still a Linux novice.

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  • Over gigabit connection, Teracopy does 31MB/s, but Windows 8 does it at ~109MB per second?

    - by Gaurang
    I got my brain-melting first taste of Gigabit networking today, between my 2011 MacMini and Windows 8 Pro desktop connected via Cat.5e to Linksys WRT320N(sporting dd-WRT). After making sure that the line speed on both systems showed 1Gbps, I proceeded to copying a 2.4GB MP4 from the Mini to the Win 8 desktop (SMB sharing). Although satisfied with the 30-34 MB/s that Teracopy was showing (that was a proper step-up for me from 10 MB/s), I still was curious about this massive difference in the advertised and real-world speed. 2 hours of Google had me believing that there were other factors that resulted in less speed, SMB being one. So just for the sake of doing it, I iPerf'd both the systems and guess what that showed - around 875mbps on both systems! I then stumbled upon this little piece of info after which I turned off Teracopy and copied the same file through Windows 8's regular copier. 109 MB/s. Molten brains :) What exactly is causing this? And can I enable such speeds via Teracopy? I really dig the extra features that Teracopy has, will surely miss them now :D

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  • Nginx , Apache , Mysql , Memcache with server 4G ram. How optimize to enought memory?

    - by TomSawyer
    i have 1 dedicated server with Nginx proxy for Apache. Memcache, mysql, 4G Ram. These day, my visitor on my site wasn't increased, but my server get overload always in some specified time. (9AM - 15PM) Ram in use is increased second by second to full. that's moment, my server will get overload. i have to kill all apache , mysql service and reboot it to get free memory. that's the circle. here is my ram in use at the moment 160(nginx) 220(apache) 512(memcache) 924(mysql) here's process number 4(nginx) 14(apache) 5(memcache) 20(mysql) and here's my my.cnf config. someone can help me to optimize it? [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql skip-locking skip-networking skip-name-resolve # enable log-slow-queries log-slow-queries = /var/log/mysql-slow-queries.log long_query_time=3 max_connections=200 wait_timeout=64 connect_timeout = 10 interactive_timeout = 25 thread_stack = 512K max_allowed_packet=16M table_cache=1500 read_buffer_size=4M join_buffer_size=4M sort_buffer_size=4M read_rnd_buffer_size = 4M max_heap_table_size=256M tmp_table_size=256M thread_cache=256 query_cache_type=1 query_cache_limit=4M query_cache_size=16M thread_concurrency=8 myisam_sort_buffer_size=128M # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 [mysqldump] quick max_allowed_packet=16M [mysql] no-auto-rehash [isamchk] key_buffer=256M sort_buffer=256M read_buffer=64M write_buffer=64M [myisamchk] key_buffer=256M sort_buffer=256M read_buffer=64M write_buffer=64M [mysqlhotcopy] interactive-timeout [mysql.server] user=mysql basedir=/var/lib [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid

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