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  • How can I make my PHP development environment more efficient?

    - by pixel
    I want to start a home-brew pet project in PHP. I've spent some time in my life developing in PHP and I've always felt it was hard to organize the development environment efficiently. In my previous PHP work, I've used a windows desktop machine and a linux server for development. This configuration had it's advantages: it's easy to configure Apache (and it's modules)/PHP/MySql on a linux box, and, at the time, this configuration was the same like on production server. However, I never successfully set up a debug connection between my Eclipse install and X-debug on server. Transferring files from my local workspace to the server was also very annoying (either ftp or Bazaar script moving files from repository to web root). For my new setup, I'm considering installing everything on my local machine. I'm afraid that it will slow down workstation performance (LAMP + Eclipse), and that compatibility problems will kick-in. What would you recommend? Should I develop using two separate machines? On one? Do you have experience using one of above configurations in your work?

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  • Where does traffic shaping typically take place?

    - by eekmeter
    As part of upgrading our network infrastructure we are looking to traffic shape our bandwidth since we only have about 3Mb down / 1 Mb up. We're looking to prioritize it so that web browsing gets priority and in the future some VOIP might be added in as well. Internal LAN traffic doesn't need to be controlled just our outbound connection. I've been looking at Cisco hardware and it seems that several of their products do shaping at the core switch, firewall, and router level. I'm wondering where does shaping normally take place? Is it normally done at the router, core switch, or firewall?

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  • Nagios: Is it possible to have multiple IPs for a host?

    - by Aknosis
    In our office we have dual WAN setup, if our cable connection drops we still get connectivity via our T1. The only issue is that our office network is no longer available on the same IP so all Nagios check go critical because they can't connect. What'd be awesome is if I could have Nagios try IP 1 by default but if for some reason its failing on that IP try IP 2. I doubt this is possible with a default install but I'm wondering if there is any add-ons or some other magic that could make this work?

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  • Linux will not activate wireless after device has been re-enabled

    - by XHR
    Using a Eee 900A netbook by Asus. By pressing Fn + F2, I can disable or enable the wireless chip on the netbook, a blue LED indicates the status. I've been able to connect to wireless networks just fine with this netbook. However, if the wireless chip ever becomes disabled, I have to reboot to get my network connection back. This generally happens when suspending. For some reason the LED will be off and I have to hit Fn + F2 for it to light up again. However, after doing so, Linux will not reconnect to the network. It simply changes the wireless status from "wireless is disabled" to "device not ready". Even worse, I've recently had issues with the chip being enabled at boot, thus making it nearly impossible to get connected. I've searched around on-line but haven't found much of anything useful on this. This happens on all kinds of different distros including Ubuntu 9.10 Netbook, EeeBuntu 4 beta, Jolicloud and Ubuntu 10.04 Netbook.

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  • How to introduce a computer illiterate 50-year old to programming [closed]

    - by sunday
    The other day my dad asked me a question that I would have never expected from him. "How can I learn C++?" My dad is turning 56 this year and computers are a distant concept for him. He doesn't know how to use a phone very well besides calling numbers (no speed dial or contacts); though he has started to learn computers a little better - to the point that he knows how to open the internet (in Windows) and browse around (and has successfully completed several job applications entirely on his own online, of which he was offered positions too). But still, these are too narrow-windowed experiences to mean much, really. While he may not have the background, my dad knows how to read. And I mean reading as a skill, not just an ability. He has little to no college education (financial problems, family, etc.) and was fortunate enough to finish high school, but still taught himself to become a master electrician and has been one for almost 30 years now. He did the same with guitar, learning to play at a very professional level and has been praised for his skill. In high school, he picked up a weight lifting book - and was the only person in his high school at the time to qualify officially as an "athlete" by national standards. In all cases, he just needed something to read. Something to teach him. He absorbs information like a sponge. I have no doubt in my dad's motivation or capability of doing this, so my general goal is simply: Get my dad into the world of computers, and get him on the road to programming. I strongly believe that once I get him through the fundamentals, his drive and reading skill will keep him going on this own. So I'm asking you all: where should I start with all this? And what are the best resources out there? Should I get him to start Linux instead of Windows? Is C++ a bad idea? Remember, he needs to (IMO) learn computers first, and then get that first grasp (the "Hello world" experience) of programming. For money's sake and at top preference, I'd like free online resources that he can read, but by all means any good suggestions in print or paid-for-online are welcome (that I could possibly look into later to purchase). And also, I intend to start him off with C++ (no Python, Java, etc.), because I know it the best and will be able to help him along the way with code. (I have minimal knowledge right now in other languages). Edit: I'm getting a lot of persistent suggestions to use Python. The only reason I wanted to do C++ is that I KNOW it and can be THERE when my dad needs help. My VERY FIRST exposure to programming ever was Java. I learned Java, and I got good at it. I open to other suggestions, but please provide an effective application of your suggestions. EDIT #2: I understand my approach/thinking/knowledge could be lacking here. I'm a sophomore level undergraduate CS major. If you don't agree with anything in my post, tell me why - give me ideas, information - that's why I'm asking in the first place. To narrow down my general goal to specific reachable goals.

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  • Syncing Large Directories/Filesystems using USB Drive

    - by Alan Lue
    Does anyone have a solution for syncing large directories/filesystems using just a USB flash drive (and specifically without using a network connection)? The objective is simply to sync a user directory between two computers. The contents of the user directory could amount to a large quantity of data—say, a quantity larger than could be stored on any single USB drive—but the aggregate size of changes that must be propagated by a single sync could easily fit on a USB drive. As an example, suppose a user directory is already synchronized between a desktop and a laptop computer. Here's a use case: Some changes are made in the user directory on the desktop. We mount a USB drive onto the desktop and copy whatever changes need to be applied to the laptop user directory in order to synchronize the desktop and laptop user directories. We now mount the USB drive onto the laptop and apply the changes. The desktop and laptop user directories are now synchronized. Any ideas? Alan

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  • How can I restore GRUB without a live CD?

    - by Looterguf
    I realize that this is a duplicate of a question asked before, but in that question the asker managed to find his live CD and no real answer appeared, thus I am re-asking it. I managed to screw up my GRUB by deleting two linux partitions on my hard drive from windows. After this, GRUB gives the error "partition not found", and gives me the grub-rescue prompt. The only command I have found to work in this is 'ls', which spits out my partitions. I would use the live CD fix, but I am in India, and all my live CDs are back home in the US... What I've got is an internet connection, a 4GB flash drive with Flow OS installed (which I am currently using but can wipe if need be), and a working laptop that I can borrow. What should I do?

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  • Wireless Bridge -DHCP

    - by Usta
    I was thinking of picking up a couple of TP-Link wireless routers, and setting them to bridge. I have a sep. LAN network that would have one of them, and I'd put one on my internet connection. Would I be able to keep my current IP subnets? (255.255.255.0 and 255.0.0.0) or would I have to pull my IPs from the same IP range. (I want to keep my current DHCP servers in place) The reason I want a bridge is so that I can VPN into the internal network.

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  • SSH disconnects active session after 20 minutes

    - by Paramaeleon
    I’ve just set up a new Linux box (OpenSuSE 12.3 on VmWare). Now I stated that my SSH shell sessions are disconnected exactly after 20 minutes, clearly with activity. (Putty: “Network error: Software caused connection abort”) I already set Putty to send keep alives every 64 sec. In sshd_config, I set ClientAliveInterval 50 ClientAliveCountMax 2 and did a deamon reload. Didn’t help. About two minutes after the link breakdown, ssh reports to /var/log/messages: … … sshd[…]: Timeout, client not responding. … … sshd[…]: pam_unix(sshd:session): session closed for user root I don’t encounter this behaviour when connecting to other virtual machines, so I guess the problem isn’t in the network. Any help is appreciated.

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  • Disable Network settings (TCP/IP & DNS) on Windows 7 Ultimate

    - by TiD91
    i also read this discussion here How to disable Tcp/Ip settings in windows 7 via GPO? about what i want to do but i still have problems. So here i am: i have a desktop pc with two accounts, both with Administrative rights. One is used by the entire my family, in particular by my brother. The problem is that i set some DNS and IP configurations to let be possible the VNC connection from remote. Now i would like to disable the network settings (TCP/IP and DNS) to prohibit my brother to change it preventing me to connect to it. So how can i do this? I set the policies from GPO but i still can change these settings from his account. Here's a pic of Registry Keys: http://imageshack.us/a/img339/3310/famigliapc2012092017274.png what didn't i do? Thanks in advance for your help. Rub|TiD

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  • cPanel configuration appears to allow unauthenticated SMTP - how to fix?

    - by ttsiodras
    One of my clients is using a cPanel-based Virtual Dedicated Server that appears to allow unauthenticated SMTP: bash$ echo EHLO | nc mail.clientscompany.com 25 ... 250-SIZE 52428800 250-PIPELINING 250-AUTH PLAIN LOGIN 250-STARTTLS 250 HELP It therefore appears that anyone (esp. spammers) can use his mail server to send whatever - I just connected from my DSL connection at home, and... bash$ nc mail.clientscompany.com 25 HELO clientscompany.com MAIL FROM: [email protected] RCPT TO: [email protected] DATA From: <[email protected]> To: <[email protected]> Date: ... Subject: ... Blah . QUIT I just tested this, and sure enough, it sent a mail from "[email protected]". Since I am not familiar with cPanel and WHM, can someone provide pointers to configure his mail server to (a) only accept TLS connections and (b) only authenticated ones (i.e. with user/password, not just plain connections). Thanks for any help.

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  • Why doesn't phpMyAdmin connect to MySQL server?

    - by Grafica
    I'm running xampp on Windows 7, and when I type localhost/phpmyadmin, there is an error: phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server. Here's what I did, but I'm still not able to connect: In config.inc.php, changed from true to false: $cfg['Servers'[$i]['AllowNoPassword'] = false; Changed password here: localhost/security/xamppsecurity.php In resetroot.bat, typed new password where it says 'password': echo REPLACE INTO user VALUES ('localhost', 'pma', 'password', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', '', '', '', '', 0, 0, 0, 0, '', ''); >>resetroot.sql Restarted apache and mySQL I still get the same error message. Thanks in advance!

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  • Remotely running batches on a Windows PC

    - by Eduardo León
    I want to remotely control my home desktop PC (running Windows 7 Professional), mainly to perform the following tasks: Downloading email attachments, and sending emails with attachments Running UI-less programs whose only inputs are files and whose only outputs are files So far, the only solution I have found is to use Remote Desktop to connect to my PC, but this is very slow and inefficient, especially when there is no fast Internet connection available other than my cell phone's. I would like to be able to send batch commands to my PC, like: Download an email attachment Use it as input for an UI-less program Save the program's output to a file Send that file to myself as an email attachment Is this possible? How could I do it?

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  • Approach to Authenticate Clients to TCP Server

    - by dab
    I'm writing a Server/Client application where clients will connect to the server. What I want to do, is make sure that the client connecting to the server is actually using my protocol and I can "trust" the data being sent from the client to the server. What I thought about doing is creating a sort of hash on the client's machine that follows a particular algorithm. What I did in a previous version was took their IP address, the client version, and a few other attributes of the client and sent it as a calculated hash to the server, who then took their IP, and the version of the protocol the client claimed to be using, and calculated that number to see if they matched. This works ok until you get clients that connect from within a router environment where their internal IP is different from their external IP. My fix for this was to pass the client's internal IP used to calculate this hash with the authentication protocol. My fear is this approach is not secure enough. Since I'm passing the data used to create the "auth hash". Here's an example of what I'm talking about: Client IP: 192.168.1.10, Version: 2.4.5.2 hash = 2*4*5*1 * (1+9+2) * (1+6+8) * (1) * (1+0) Client Connects to Server client sends: auth hash ip version Server calculates that info, and accepts or denies the hash. Before I go and come up with another algorithm to prove a client can provide data a server (or use this existing algorithm), I was wondering if there are any existing, proven, and secure systems out there for generating a hash that both sides can generate with general knowledge. The server won't know about the client until the very first connection is established. The protocol's intent is to manage a network of clients who will be contributing data to the server periodically. New clients will be added simply by connecting the client to the server and "registering" with the server. So a client connects to the server for the first time, and registers their info (mac address or some other kind of unique computer identifier), then when they connect again, the server will recognize that client as a previous person and associate them with their data in the database.

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  • Mail.app slow to include new messages

    - by Chris Tompsett
    With Leopard I was able to link to the University's Exchange 2003 server with and IMAP connection and mail out directly vie the SMTP client. With Snow Leopard I attempted to update to a full Exchange service (Exchange 2007). Almost all has worked OK (ical, address, etc.) except that new mail posted to my email account, which is visible using a 'web' interface to Exchange remains invisible for some random number of hours. Those who are running the Exchange server have no interest in discussing the problem. Has anyone else had a similar experience?

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  • How to run long time process on Udev event?

    - by neclude
    (sorry for my bad english) I want run ppp connection when my usb modem is connect. so i use next udev rule: ACTION=="add", SUBSYSTEM=="tty", ATTRS{idVendor}=="16d8",\ RUN+="/usr/local/bin/newPPP.sh $env{DEVNAME}" (my modem appear in /dev as ttyACM0) newPPP.sh: #!/bin/bash /usr/bin/pon prov $1 >/dev/null 2>&1 & Problem: udev event fire, newPPP.sh running, BUT newPPP.sh process will be killed after ~4-5s. ppp not have time to connect. (in it params is timeout 10s for dial up). How can i run long time process, that will not be killed? (I was try nohup. It don't work too.) System: Arch Linux

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  • Start a VPN session using a Terminal script

    - by craibuc
    I use an OSX Terminal session to start a VPN connection. The command that I execute at the prompt is: /etc/netlock/cvc -c :: This works as expected. I would like to save this to a script file that I can simply double-click to start. I created a file, 'vpn.command', added the command (list above), save it, and given execute permission: chmod +x vpn.command When I double-click the file, Terminal opens a BASH shell, executes the command, then exits. Upon closer inspection, the command is now '/etc/netlock/cvc -c ::; exit;' Why is the extra '; exit;' appended to my command? BTW, is there a way to execute another command, /etc/netlock/cvc -d, when the Terminal session is being closed so I can close the VPN automatically?

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  • How to collect figures of traffic used per-host, broken up by time and destination?

    - by Seishun
    We have a relatively small network, all PSs in one subnet. One PC with two NICs and pfSense installed works as a firewall/router. There is an OpenVPN tunnel to a remote location, created as a site-to-site connection to another pfSense box there. I have an assignment to capture, store and show (via a web interface) information on traffic generated (both incoming and outcoming) by each host on our subnet and present it in several views: megabytes per calendar hours / days / months / years (that is, not just "one month back", but "in Dec 2010" and so on); megabytes per destination: VPN to remote location / other destinations / Google Apps servers. I tried the software packages in pfSense that offer traffic montoring - but it seems they don't store the information fixed by months, instead showing the amounts of traffic generated in periods (days/months/etc) calculated from the present moment. I'm also interested in understanding what would be the best way for me to break up traffic by hosts and destinations. I'm open to all suggestions, even if they mean that I will have to understand something new to me.

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  • Web Content Filtering for Windows Clients

    - by djoyce
    I'm working with a small business to solve a bunch of problems. One is their Windows 7 POS registers need to have web access restricted to only three remote support sites, but the back office machine needs an unfiltered connection. I'd like something I can install and configure on the few registers to block all but those few sites. In a perfect world this would restrict the normal register user, but the admin user would not be filtered. Free is best, if it works, but a small fee would be alright too. Microsoft's Family Safety filter is close, but requires a Windows Live account, which isn't ideal, but may be alright. Anyone use this in a small business environment? I'd prefer something easily managed at the local machines. K9 Web Protection is interesting and I'm going to look into it more. Are there other options? Seems like someone would have made something simple like this as an open source project, but maybe not.

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  • Forward public port to localhost

    - by Dan
    I have a process running on my Ubuntu 12.04 server that insists on binding to a public IP address. I only want it accessible from localhost, and NOT the outside world. I've been trying to work out a way to forward 1.2.3.4:8888 to 127.0.0.1:8888. I saw something about iptables not wanting to forward connections to loopback, and I haven't been able to make it work with xinetd either. It's also important that the connection not only be available on localhost, but be inaccessible on the interface it's trying to run on. Is this even possible?

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  • Linux periodically "losing" ability to connect to server via SSH?

    - by gct
    I know this isn't exactly a programming question, but it popped up in my use of git for programming projects at least. I've got a web server that I use to host my git repos on, but my ubuntu box seems to "lose" the ability to connect to it via SSH. I'll get a "connection refused" error when I try to ssh or use git. Rebooting my local machine will fix the problem, but only temporarily. I can still connect to the web interface just fine, and the problem manifests with other servers as well. I've been working around it by pulling my changes over to my laptop and pushing from there, but that's sub-optimal as you can imagine. Has anyone seen something like this? I'd be tempted to say it's some kind of IP caching problem, but I can't connect even using the IP address of the server directly... Running Ubuntu 9.04

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  • How can I tell how many bits my ssh key is?

    - by yairchu
    I already created an ssh key for myself sometime in the past. I don't remember "how many bits" it is. How can I tell? I'm wondering because I'm using hosting at nearlyfreespeech.net and their faq says: Can I configure my ssh connection to use a public key? ... we will not install keys that have a length less than 1536 bits ... We prefer that you use a key at least 2048 bits in length, and if you are generating a new key, the recommended length is 4096 bits.

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  • Connecting a Windows 7 client to local Mac OS X server

    - by Sean Dooley
    I was previously able to connect a Windows 7 client to the local Mac OS X server without any issues. Then due to internet connection issues, the router had to be reset. Since then the Windows 7 client has not been able to properly connect to the locacl Mac OS X server. Within Windows Explorer and the Network and Sharing Center, the server shows up in the Network lists, but does not show any folders or files when I click to connect. There are no error messages appearing either. Any ideas what I can do to resolve this?

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  • Using the RadTransitionControl in Task-It

    Download Source Code NOTE: To run the source code provided your will need to update to the RC (release candidate) versions of Silverlight 4 and VisualStudio 2010.  In a recent Ask the Experts webinar I showed a simple solution that had similarities to one that I had used in my recent MVVM post, but had a few extra twists on it. I have since been asked if I could post the source code for this demo, so here it is (I am using similar techniques in my Task-It application). The database Before running the code for this app you will need to create the database. First, create a database called MVVMProject in SQL Server, then run MVVMProject.sql in the MVVMProjectDemo/Database directory of your downloaded .zip file. This should give you a Task table with 3 records in it. You will also need to update the connection string in web.config to point to your database ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Power outage during disk wipe. What do I do now?

    - by Mark Trexler
    I was using Roadkil Diskwipe on an external hard drive and the power went out. I had removed it from any outlet connection by the time power was restored to prevent power-spike damage (it's on a surge protector, but I didn't want to rely on that). My question is, where do I go from here? Obviously I don't care about preserving any data currently on it, I just want to make sure the drive itself is not terminally damaged. I'm running chkdsk (full), but I don't know if that's the correct step to assessing any damage. If it makes any difference, the hard drive was unallocated at the time of the outage, as Diskwipe requires that for it to run. Also, could something like this cause latent problems with the drive itself (i.e. serious issues that I won't be aware of when testing it now). I'd appreciate any program recommendations if chkdsk is not the most appropriate diagnostic route. Thank you.

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