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• DLINK WBR-1310B Wireless Router seems to hang...

  - by Ira Baxter

  I have a brand new DLINK-1310B Wireless Router (box never before opened, although I bought it the neighborhood computer junk store). I am using it at home (and in fact am using it this instant from a wireless laptop). When operative, I can ping it at 192.168.0.1, and I can log into it from the PC attached to by LAN and from the wireless PC at //192.168.0.1. In the course of the day since I've installed, it seems to have locked up 3 times. Each time the symptoms are my web browser (or other internet service) stops with a "No internet connection" error. Attempts to contact the router via 192.168.0.1 get no reaction, from either the wireless laptop or from the hardwired PC sitting next to it. It doesn't respond to pings to that address either. Rebooting fixes it. Its brand new. I've seen discussion in other questions about aging cheap electronics. Its too new to be aged. Anyboyd else seen this behavior with a DLINK-1310? Or do I just need to exchange it for another and try again? (I hate rolling dice, I bought the DLINK becuase a previous Linksys died of apparant heating problems). Remarkably, nobody talks about how much software is in a router. Is the stuff just buggy?

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• Write permissions LAMP (Debian Lenny)

  - by letseatfood

  I am working on a PHP script that transfers files using FTP functions. It has always worked on my production server (which is a hosting service). The development server I have just setup (I am a novice to servers) is Debian Lenny with Apache2, PHP5, and MySQL5. The file transfer works correctly, but once the file has been written to the server, it has permissions of 600. This makes it impossible for me to view the file (JPEG) in the web browser, as permission is denied. I have scoured the internet and even broken my server installation and reinstalled it trying to figure this out (which has been fun, nonetheless!). I know it is unwise to set 777 permissions on public accessible files, but even that will not solve the problem. The only thing that works is if I chmod 777 thefile.jpg after it has been transferred, which is not a working solution. I tried changing the owner of my site files to www-data per this post, but that also does not work. My user is mike, and it still does not work whether the owner of the files is mike or root. Would somebody point me in the right direction? Thanks! And, of course, let me know if I can clarify anything.

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• How to configure IIS 7.5 to allow special chars in Url for ASP.NET 3.5?

  - by Sebastian P.R. Gingter

  I'm trying to configure my IIS 7.5 to allow specials chars in the url for ASP.NET. This is important to support wide-spread legacy url's on a new system. Sample url: http://mydomain.com/FileWith%inTheName.html This would be encoded in the url and requested as http://mydomain.com/FileWith25%inTheName.html This simply works, when creating a new web in IIS 7.5, placing a file with the percentage sign in the file name in the web root and pointing the browser to it. This does not work, however, when the web site is an ASP.NET application. ASP.NET always returns a 400.0 - Bad Request error in the WindowsAuthentication module from the StaticFile handler, when pointing to that url. It however displays the requested url correctly and also resolves correctly to the correct physical file (the information from the field 'Physical Path' from the Server error page points to the physically available file). There are hints on how to enable this, so I followed the instructions on these websites step by step: http://dirk.net/2008/06/09/ampersand-the-request-url-in-iis7/ http://adorr.net/2010/01/configure-iis-to-accept-url-with-special-characters.html The second one actually sums up the information from the first post and adds some more information about x64 systems (we're running x64) and on an additional web.config change for this. I tried all that, and still can't get this running from an asp.net web application. And yes: I rebooted after applying the registry changes. So, what do I have to do in addition to the settings described in above posts, to support the legacy url's which contain percentage characters? Additional info: Application Pool mode is integrated. Push after some days. No idea anyone?

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• Using proxy.pac to access Apache 2 with a hostname?

  - by leeand00

  Note that I do not have a DNS on my network, and that is why I am resorting to using a proxy.pac file. I would like to be able to access my development Apache 2 server using a name instead of an ip without setting up a full blown DNS. I am aware of setting names in the C:\Windows\System32\drivers\etc\hosts file and the /etc/hosts files, however I cannot edit the hosts file on all of the devices that I am testing the site on. I've added a proxy.pac file to my Apache2 server and pointed my browsers settings to it at: http://192.168.2.221/proxyutils/proxy.pac ...where 192.168.2.221 is thehostname's ip address. I set the above URL in Firefox in the following manner: From the menubar selecting "Edit-Preferences" In the resulting "Firefox Preferences" window clicking the "Advanced" tab. Clicking the "Network" tab Clicking the "Settings" button. Selecting the "Automatic proxy configuration URL:" radio button. Entering http://192.168.2.221/proxyutils/proxy.pac and pressing OK. The contents of the proxy.pac file on the Apache server function FindProxyForURL(url, host) { if( dnsDomainIs(host, "thehostname") ) return "PROXY 192.168.2.221:80"; return "DIRECT"; } In Firefox I then access the following URL: http://thehostname/wp-blog/ And instead of the development version of the Wordpress blog I am trying to access I get a URL of http://thehostnamehttp/thehostname/wp-blog/ in my address bar and a 404 Not Found page in the browser window. Looking over proxy.pac, it seems like calling dnsDomainIs shouldn't work considering I don't have a DNS setup on my network, but I've also tried just comparing the host argument with the string "hostname" and it yielded the same result, even after modifying the proxy.pac file and clicking the reload button near the proxy settings. This could also be a Wordpress problem, since I've noticed that directories without Wordpress seem to function perfectly normally. (see cross post here) Is there any way I can modify my configuration so that I can access the site using http://thehostname/wp-blog/ ?

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• Can't connect to MySQL on CentOS 5 Error 13 - Permission Denied

  - by abszero

  Ok, I have an install of CentOS 5 running as a GuestOS in VirtualBox. The network card for the Cent box is bridged with that of my host OS so that the boxes can see each other. Cent has an IP of 192.168.1.108 and my Host box has an IP of .104. Everything, with regard to networking, seems to be working properly as I can access the Drupal install that is on the Cent box from a web browser on my host box by navigating to http://192.168.1.108 however when I try to configure the database for Drupal through the Drupal install interface I am getting the Can't connect to MySQL error. First I thought this might of been a Firewall issue so I stopped iptables but that had no effect. I thought maybe the user I had setup did not have access to the server so I tried root and that did not work. Searching on the net said that I needed to provide a bind-address parameter to my.cnf so I did that with no change. (As a side note the length of my my.cnf file was MUCH shorter than the ones presented online. In fact under mysqld all I have are datadir, socket, user, and bind-address. Is this normal or should the file be more verbose?) After a few hours of messing with permissions and such I tried using 'localhost' as the value for the database server, from my HOST OS, and the Drupal install kicked off without a problem. So while my issue is resolved I am curious as to why 'localhost' works and why 192.168.1.108 did not? Is there something i need to do to specifically access the MySQL box via the aforementioned IP? Thanks.

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• PHP sessions currupt

  - by Baversjo

  Using symfony framework 1.4 I have created a website. I'm using sfguard for authentication. Now, this is working great on WAMP (windows). I can login to several accounts on different browsers and use the website. I have ubuntu server 9.10 running apache (everything up to date and default configuration). On my server, when I login to the website in one browser it works great. When I on my other computer login with another user account on the public website, the login is successful. But when I refresh/go to another page the first user is shown as logged in instead! Also, when I press logout, It's not showing that I'm logged out after page load. When I press f5 again I'm logged out. As mentioned, all this works as expected on my local installation. I'm thinking there something wrong with my PHP session configuration on my ubuntu server, but I've never touched it.. Please help me. This is a school project and I'm presenting it today :(

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• How do I correctly SSH port forward using LiveReload on Redhat?

  - by program247365

  Referencing this page: http://feedback.livereload.com/knowledgebase/articles/86280-if-you-edit-files-directly-on-your-server It says you can remotely port forward the LiveReload specific port of 35729, using this command: ssh -L 35729:127.0.0.1:35729 mylogin@myremoteserverIP When I run the -v option, I get: debug1: Local connections to LOCALHOST:35729 forwarded to remote address 127.0.0.1:35729 debug1: Local forwarding listening on ::1 port 35729. debug1: channel 0: new [port listener] debug1: Local forwarding listening on 127.0.0.1 port 35729. debug1: channel 1: new [port listener] debug1: channel 2: new [client-session] debug1: Entering interactive session. debug1: Sending environment. debug1: client_input_channel_req: channel 2 rtype [email protected] reply 1 debug1: Connection to port 35729 forwarding to 127.0.0.1 port 35729 requested. debug1: channel 3: new [direct-tcpip] channel 3: open failed: connect failed: Connection refused debug1: channel 3: free: direct-tcpip: listening port 35729 for 127.0.0.1 port 35729, connect from 127.0.0.1 port 63673, nchannels 4 I thought editing my /etc/services with this line, would work, but it doesn't: livereload 35729/tcp # livereload usage with guard-livereload Every time I attempt to connect with the browser extension, I believe It's getting blocked by my server. What am I missing here? Do I need to edit /etc/services for this to work?

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• Loss of network connectivity when playing video on Optoma HD180 projector

  - by Jeff Fohl

  Hi Folks - New to Super User, so I hope this question fits in with the guidelines. Very strange problem I am having, and I am at a loss as to how to continue troubleshooting this one. The basic problem is that when I attempt to watch streamed video on a particular display device (an Optoma HD180 projector), my network connectivity drops like a stone to barely measurable levels. This is my setup: I have a Dell H2C 730x running Windows 7 64bit. This particular computer has two ATI Radeon HD 4800 video cards. I have two Samsung 22" monitors connected to one card, and an Optoma HD180 digital projector connected to the other card via an HDMI cable. My internet connection is normally a reliable 6Mbps. The problem I am having occurs when I stream video (or even just browse the web) on the Optoma Projector. When I do this, my internet connection drops to practically zero (just a few kilobits per second). When I move the browser away from the projector, and over to one of my Samsung monitors, the internet connection comes right back. Note that the Optoma projector is on and enabled as a third monitor all this time. I can move the mouse around on the projector without triggering the problem. I tried pinging my router when I was playing a movie on one of the monitors, and I get a 1 millisecond response. However, when I have the movie playing on the Optoma projecter, pinging the router gives me response times in the hundreds of milliseconds, or times out completely. So, it clearly is something local to my machine - and not some sort of throttling occurring down the line. I would think that it is possibly something to do with the HDMI driver conflicting somehow with my network driver (which is a USB-based wireless connection). This one has me really stumped. Anyone have any ideas?

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• Getting 401 when using client certificate with IIS 7.5

  - by Jacob

  I'm trying to configure a web site hosted under IIS 7.5 so that requests to a specific location require client certificate authentication. With my current setup, I still get a "401 - Unauthorized: Access is denied due to invalid credentials" when accessing the location with my client cert. Here's the web.config fragment that sets things up: <location path="MyWebService.asmx"> <system.webServer> <security> <access sslFlags="Ssl, SslNegotiateCert"/> <authentication> <windowsAuthentication enabled="false"/> <anonymousAuthentication enabled="false"/> <digestAuthentication enabled="false"/> <basicAuthentication enabled="false"/> <iisClientCertificateMappingAuthentication enabled="true" oneToOneCertificateMappingsEnabled="true"> <oneToOneMappings> <add enabled="true" certificate="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"/> </oneToOneMappings> </iisClientCertificateMappingAuthentication> </authentication> </security> </system.webServer> </location> The client certificate I'm using in my web browser matches what I've placed in the web.config. What am I doing wrong here?

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• nginx: how do I add new site/server_name in nginx?

  - by Neo

  I'm just starting to explore Nginx on my Ubuntu 10.04. I installed Nginx and I'm able to get the "Welcome to Nginx" page on localhost. However I'm not able to add a new server_name, even when I make the changes in site-available/default file. Tried reloading/restarting Nginx, but nothing works. One interesting observation. "http://mycomputername" in browser works. So somehow there is a command like 'server_name $hostname' somewhere over-riding my rule. File: sites-available/mine.enpass server { listen 80; server_name mine.enpass ; access_log /var/log/nginx/localhost.access.log; location / { root /var/www/nginx-default; index index.html index.htm; } } File: nginx.confg user www-data; worker_processes 1; error_log /var/log/nginx/error.log; pid /var/run/nginx.pid; events { worker_connections 1024; # multi_accept on; } http { include /etc/nginx/mime.types; access_log /var/log/nginx/access.log; sendfile on; #tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; tcp_nodelay on; gzip on; gzip_comp_level 2; gzip_proxied any; gzip_types text/plain text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript; gzip_disable "MSIE [1-6]\.(?!.*SV1)"; include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; }

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• iptables port forward + nginx redirect problem

  - by easthero

  Here is my network browser = proxy(iptables port forward) = nginx server proxy: 192.168.10.204, forward 192.168.10.204:22080 to 192.168.10.10:80 nginx server: 192.168.10.10 nginx version:0.7.65 debian testing in nginx settings, I set: server_name _; server_name_in_redirect off; because my server has no domain now, access 192.168.10.10/index.html or 192.168.10.10/foobar is ok then access 192.168.10.204:22080/index.html is ok but access 192.168.10.204:22080/foobar, nginx 301 redirect to http://192.168.10.204/foobar how to fix? thanks telnet 192.168.10.204 22080 Trying 192.168.10.204... Connected to 192.168.10.204. Escape character is '^]'. GET /index.html HTTP/1.1 Host: 192.168.10.10 HTTP/1.1 200 OK Server: nginx/0.7.65 Date: Fri, 28 May 2010 10:07:29 GMT Content-Type: text/html Content-Length: 12 Last-Modified: Fri, 28 May 2010 07:25:12 GMT Connection: keep-alive Accept-Ranges: bytes hello world telnet 192.168.10.204 22080 Trying 192.168.10.204... Connected to 192.168.10.204. Escape character is '^]'. GET /test2 HTTP/1.1 Host: 192.168.10.10 HTTP/1.1 301 Moved Permanently Server: nginx/0.7.65 Date: Fri, 28 May 2010 10:04:20 GMT Content-Type: text/html Content-Length: 185 Location: http://192.168.10.10/test2/ Connection: keep-alive <html> <head><title>301 Moved Permanently</title></head> <body bgcolor="white"> <center><h1>301 Moved Permanently</h1></center> <hr><center>nginx/0.7.65</center> </body> </html>

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• Virtual machines with failover setup

  - by kimmmo

  We have three servers and our plan is to run a number of virtual machines on them in such manner, that if one of the nodes blow up, we can either quickly or seamlessly get a spare running on another node. In addition to the normal networking, they're interconnected via dual 10Gbit NIC's, so networked raid/mirroring shouldn't be a problem. The guest VM's are mostly going to be running text mode linux, but of course it wouldn't hurt to be able to spin up a non-mission critical windows guest for running Visual Studio or checking IE compatibility of a web app. We've spent some time trying to get some magical cloud setup running using Stackops and Crowbar but it started to look like they were offering way too much and were too complicated for our needs. The next candidate, I think, is Ubuntu 11.04 server + KVM + Ganeti + Drbd, unless you can come up with a suggestion for a better solution that we have missed. Requirements: Installation should be simple or at least understandable without being in the dev team A browser interface for creating and managing VM's is a nice bonus Single node's hardware failure should cause minimal downtime for VM's that were running on that node Adding more nodes should be possible without shutting down the VM's.

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• wget hangs in http request sent awaiting response in some sites

  - by gkr

  Using Ubuntu 12.04. wget hangs in http request sent, awaiting response... in some sites. Browser's are not opening sites that are failed in wget. But in WinXP everything works. This works gkr@gkr-desktop:~/Documents/curl$ wget google.com --2012-06-12 21:29:37-- http://google.com/ Resolving google.com (google.com)... 74.125.236.174, 74.125.236.160, 74.125.236.161, ... Connecting to google.com (google.com)|74.125.236.174|:80... connected. HTTP request sent, awaiting response... 301 Moved Permanently Location: http://www.google.com/ [following] --2012-06-12 21:29:38-- http://www.google.com/ Resolving www.google.com (www.google.com)... 74.125.236.179, 74.125.236.180, 74.125.236.176, ... Connecting to www.google.com (www.google.com)|74.125.236.179|:80... connected. HTTP request sent, awaiting response... 302 Found Location: http://www.google.co.in/ [following] --2012-06-12 21:29:38-- http://www.google.co.in/ Resolving www.google.co.in (www.google.co.in)... 74.125.236.184, 74.125.236.191, 74.125.236.183, ... Connecting to www.google.co.in (www.google.co.in)|74.125.236.184|:80... connected. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/html] Saving to: `index.html.3' [ ] 13,383 --.-K/s in 0.04s 2012-06-12 21:29:39 (308 KB/s) - `index.html.3' saved [13383] gkr@gkr-desktop:~/Documents/curl$ This site just stops/hangs in awaiting response. gkr@gkr-desktop:~/Documents/curl$ wget grooveshark.com --2012-06-12 21:27:29-- http://grooveshark.com/ Resolving grooveshark.com (grooveshark.com)... 8.20.213.76 Connecting to grooveshark.com (grooveshark.com)|8.20.213.76|:80... connected. HTTP request sent, awaiting response... ^C gkr@gkr-desktop:~/Documents/curl$ Thanks

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• What is /etc/apache2/sites-available used for and is it necessary?

  - by Mariane

  I have 3 sites, each with a specific IP, running on apache2 (up-to-date Ubuntu). To put a site online, I just created a file in: /etc/apache2/sites-enabled and in this file I told apache which directory was the root directory for this site, and to which IP it should correspond. So I have 000-default 001-www.lapf.eu 002-www.felkin.info 003-www.seidhr.fr in this directory. My first site, lapf suddenly lost contact with its database after the domain name was transferred from another registrar unto the registrar who is also hosting the site's data. Then I did an update, and I reinstalled mysql-server and mysql-common, and I did I-have-forgotten-what to reinstall the locales (uft8 and such) which had vanished for some reason. This fixed my first site. Now I noticed that the other 2 sites are offline. Pointing a browser to them just hangs until timeout. They used to function, and their domain names did not move, they are still registered at the same place. The files are still in /etc/apache2/sites-enabled I noticed another directory: /etc/apache2/sites-available with just defaut and default.ssl in it. Why are there 2 directories, sites-enabled and sites-available? Should I copy the files from "sites-enabled" into "sites-available"? Or should I put a modified version of each in "sites-available"? command: "apache2ctl -S" VirtualHost configuration: 92.243.20.169:80 Charlotte (/etc/apache2/sites-enabled/001-www.lapf.eu:1) 92.243.21.141:80 xvm-21-141.ghst.net (/etc/apache2/sites-enabled/002-www.felkin.info:1) 92.243.4.114:80 xvm-4-114.ghst.net (/etc/apache2/sites-enabled/003-www.seidhr.fr:1) wildcard NameVirtualHosts and default servers: *:80 is a NameVirtualHost default server Charlotte (/etc/apache2/sites-enabled/000-default:1) port 80 namevhost Charlotte (/etc/apache2/sites-enabled/000-default:1) Syntax OK

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• Sony PMB causing failure to load Windows 7 Pro 64-bit normally or even Safe Mode

  - by Wesley

  After installing Sony's Picture Motion Browser on my desktop with Windows 7 Pro x64, it always goes to Startup Repair due to Windows 7 failing to start. This always happens after I try to install it. I've installed with all unnecessary programs closed and all disk drives and unnecessary usb ports empty. I don't exactly know what is causing the problem. Any ideas? My desktop is an HP m8530f. http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01469325&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&product=3740333&lang=en Only upgrades are an HD4350 and a 500W PSU. EDIT: Windows 7 cannot start now. I'm currently running diagnostic tests from the BIOS. EDIT: Here are the problem details. Problem Signature: Problem Event Name: StartupRepairOffline Problem Signature 01: 6.1.7600.16385 Problem Signature 02: 6.1.7600.16385 Problem Signature 03: unknown Problem Signature 04: 21201022 Problem Signature 05: AutoFailover Problem Signature 06: 8 Problem Signature 07: CorruptFile OS Version: 6.1.7600.2.0.0.256.1 Local ID: 1033 CONCLUSION: So, I think Sony PMB may have caused some sort of corruption in the system files. So if you have Windows 7 and plan on installing Sony PMB, find a Vista or XP machine to install on.

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• How Can I Make Apache Stop Serving ALL Unknown File Types (like .php~)?

  - by user223304

  I am coming from IIS and moving to Apache and recently found out that Apache by default serves up files of an unknown file extension as PURE TEXT. This can be an issue if a user uses certain programs that back up .php files as .php~. Then the .php~ file becomes completely readable by simply navigating to it in a browser. To make matters worse these .php~ files are often considered 'hidden' in the linux environment from the user so some may not even know they exist. Bots have been created around this fact that scour the internet looking for popular file name backups and extracting potentially secure info from them. I already know how to stop serving up .php~ files or any specific file extensions. I also know not to use any editors that would save backup files like this. My question is, how can I stop this default Apache behavior of serving up ANY non-MIME file type at all? I just don't like the this behavior and would like to stop it. I don't want it serving up .aspx~, .html~, .bob, .carl, no extension or anything else that is not a real MIME type. I know that I can probably go and use a directive to first Deny access to all file types. Then add the ones I want to serve out one by one. But I'm wondering if there's an easier/quicker way. Thanks for any help.

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• Haproxy and CNAME

  - by user123354

  I want to create a simple load balancer for the two servers. The problem is with CNAME records, I think. Let's say I have two the same applications on AppFog.com. app1.aws.af.cm and app2.aws.af.cm Here is my haproxy.cfg file: global maxconn 2000 daemon defaults mode http clitimeout 60000 srvtimeout 30000 contimeout 4000 option httpclose listen http_proxy bind [myip]:80 mode http stats enable stats auth user:passwd stats uri /stats balance source option httpchk option forwardfor server host01 app1.aws.af.cm:80 maxconn 300 check server host02 app2.aws.af.cm:80 maxconn 300 check But this only resolving IP for domain app1.aws.af.cm and app2.aws.af.cm, which obviously doesn't work if I open this IP in web browser. The problem is that AppFog doesn't have public IP for application (same as OpenShift). How to do that Haproxy to perform a proper connection between Load Balancer and this two servers? Example: This is real app - http://freechat.eu01.aws.af.cm Haproxy only resolves IP for this domain which is 46.51.204.8:80 Of course this IP will not show my application, only an error page. Sorry for my poor English.

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• maximum number of connections Squid

  - by Isaac

  I have a Squid proxy server that controls all internet traffic for my network. I need a way to stop users from downloading big files (say 50MB) in my network. I banned some famous ports (e.g. torrent) but some downloads are possible by HTTP port. Obviously I cannot ban port 80! A simple solution is limiting maxmimum number of the simultaneous connections for each IP (e.g. 3 connections). It's possible in Squid with this config: acl ACCOUNTSDEPT 192.168.5.0/24 acl limitusercon maxconn 3 http_access deny ACCOUNTSDEPT limitusercon But this solution has really bad impact in web browsing, because any smart browser get different parts of a website by several connections simultaneously to speedup web browsing. But if we have a maximum number of connections, the browsers will fail to get some parts and the website will be shown partially and some parts/images/frames will not be shown. So, can we limit maximum number of persist connections? I think this policy will works: Specify Maximum number of connections that is alive for 10 seconds But Number of simultaneous connections for every IP is unlimited But how can we implement this policy when Squid? With which config? UPDATE: artifex and Tom Newton offered using a bandwidth-limiting approach to fight against downloaders. But bandwidth-limiting in Squid has a shortcoming: It's static and cannot dynamically change. So a person has a limited bandwidth not matter how many people are using internet (maybe nobody!) Also, this solution cannot help to stop people from downloading. They still can download but in a lower speed. But if we find a way to terminate persist connections (or any connection that is alive more than a specific time), downloading big files will be almost impossible (always there is some way!)

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• Unable to specify parameters to cvlc in a script

  - by VxJasonxV

  I'm creating a script that issues a few curl commands in order to access a time-protected mms stream link, then set up a relay using cvlc (vlc's command line interface) for my own use on an unencumbered player. The curl aspect of this is working, as I can run as a browser and curl side by side and get the same access url. (It's time locked meaning the stream will work forever, but you have to connect quickly or the URL will time out.) The very end of the script prints the command I will run, which is then followed up by "exec $CMD". When I echo $CMD I get: cvlc --sout '#standard{access=http,mux=asf,dst=0.0.0.0:58194}' mms://[...] Manually Copy/Pasting this command in, verbatim, works perfectly fine, but as part of a script, the cvlc execution output says: [0x9743d0] main interface error: no suitable interface module [0x962120] main libvlc error: interface "globalhotkeys,none" initialization failed [0x9743d0] dummy interface: using the dummy interface module... [0xb16e30] stream_out_standard stream out error: no mux specified or found by extension [0xb16ad0] main stream output error: stream chain failed for `standard{mux="",access="",dst="'#standard{access=http,mux=asf,dst=0.0.0.0:58194}'"}' [0xb11cd0] main input error: cannot start stream output instance, aborting [0xb11f70] signals interface error: Caught Interrupt signal, exiting... Why is --sout behaving one way in a script (non-interactive shell?) vs. another way in the foreground (interactive shell) ?

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• Facing application redirection issue on nginx+tomcat

  - by Sunny Thakur

  I am facing a strange issue on application which is deployed on tomcat and nginx is using in front of tomcat to access the application from browser. The issue is, i deployed the application on tomcat and now setup the virtual host on nginx under conf.d directory [File i created is virtual.conf] and below is the content i am using for the same. server { listen 81; server_name domain.com; error_log /var/log/nginx/domain-admin-error.log; location / { proxy_pass http://localhost:100; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } Now the issue is this when i am using rewrite ^(.*) http://$server_name$1 permanent; in server section and access the URL then this redirects to https://domain.com and i am able to log in to app and able to access the links also [I am not using ssl redirection in this host file and i don't know why this is happening] Now when i removed this from server section then i am able to access the application from :81 and able to logged into the application but when i click on any link in app this redirect me to the login page. I am not getting any logs in application logs as well as tomcat logs. Please help on this if this is a redirection issue of nginx. Thanks, Sunny

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• RDP Connection to Windows 7 stays really slow

  - by Pavlo

  I have an Issue with connecting to Windows 7 via RDP. I can open an RDP Session, but regardless of any settings, the responce times are really long. This in particulary is the case when opening a web page in a browser. I've tried IE, Firefox and Google Chrome. I also use RDP connection to a Windows 2008 Server from the same client machine, and the speed is very normal with all features turned on. We have Gigabit Ethernet here. So I think it can not be the client's fault. What concerns Windows 7 Machine, I've tried shutting all the sraphic features off and turning the color levels to 256 colors. Result - the same. If I work locally on the machine - I can not see any lags. What else have I tried: Using old RDP 5 Client from Microsoft Setting network autotuninglevel as seen here Do You have some ideas? Thanks in advance! Update the problem seems to be with rendering window contents. All the window borders and pannes are rendered pretty quickly, but the content shows up very slowly. Also mouse movements are recognised by the Win 7 box only after some period. Are there some hidden settings in the RDP, where one could turn some advanced features off or turn some caching on? I use Bitmap Caching, but this apparently doesn't help.

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• HTTPS and Certification for dummies

  - by Poxy

  I had never used https on a site and now want to try it. I did some research, but not sure that I understood everything. Answers and corrections are greatly appreciated. Here we go: To use https I need to generate ‘private’ and ‘public’ keys for the web server I use. In my case it’s apache (manual: http://httpd.apache.org/docs/2.0/ssl/ssl_faq.html) Https protocol should be bind to port 443. Q: How to do it? Is it done by default? Where can I check configuration? Aplying https. Q: If I see https in browser does it mean that the data traffic on the page IS encrypted? Any form on the page would submit data via https? Though all the data gonna be encrypted, the browsers would still show ugly red messages. This is just because they do not know anything about my certificate. They have about a hundred certificates pre-installed but mine is not one of them, obviously. But the data IS encrypted by https. If I want browsers to recognize my certificate, I would need to have it signed by one of the certification authorities (ca) that has its certificate pre-installed (e.g. thawte, geotrust, rapidssl etc). UPD: To reed about ssl/tsl: The First Few Milliseconds of an HTTPS Connection, I found it very informative. Examples for PHP (openssl.org) of how to make use of ssl/tsl on the server side are published here.

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• Weird caching bug where old version of the same web page (same filename) is still called (Windows 2008 R2, Tomcat 5.5)

  - by user717236

  This is definitely one of the strangest errors I've seen and it occurs intermittently. I am running Windows 2008 R2, IIS 7.5, and Apache Tomcat 5.5, by the way. Let's say I have two machines, A and B. Both A and B are running Windows 2008 R2. I have a web page called login.jsp on machine A, and I have a newer, modified version of login.jsp on machine B . Now, I copy the new login.jsp from machine B and paste it to machine A, replacing the older version with the same filename. For whatever reason, when I hit up the web page in my browser from a local machine (i.e. my laptop), it still recalls the old version of the web page, even though it's been replaced! I tried restarting IIS and Apache Tomcat. That didn't work. I tried restarting machine A and that didn't work. I tried a cold reboot of my local machine and that didn't work, either. So, I spoke to someone I can confide in for help. He said to open the login.jsp page in notepad, put a space in, save the file, and try again. Sure enough, it worked. He said he hasn't seen it in Windows 2003, but this is occurring with Windows 2008. What I don't understand is why did it work and what the heck is this error and I do I really diagnose it and resolve it for good, instead of the hack my colleague proposed? Is this bug related to Windows 2008, Windows 2008 R2, Tomcat, or something else entirely? Anyone else have the same problem? Thank you for any help.

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• How to configure IIS for SVG and web testing with Visual Studio?

  - by macias

  Let's say I have a simple web page with svg image in it: <img src="foobar.svg" alt="not working" /> If I make this page as static html page and view it directly svg is displayed. If I type the address of this svg -- it is displayed. But when I make this as .aspx page and launch it dynamically from Visual Studio I get alt text. If I type the address of this svg (from localhost, not as a local file) -- browser tries to download it instead of displaying. I already defined mime type in IIS (for entire server -- "image/svg+xml") and restarted IIS. Same effect as before. Question: what should I do more? Update WireShark won't work (it is in documentation), I tried also RawCap, but it cannot trace my connection (odd), luckily Fiddler worked: From client: GET http://127.0.0.1:1731/svg/document_edit.svg HTTP/1.1 Host: 127.0.0.1:1731 User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:10.0.1) Gecko/20100101 Firefox/10.0.1 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip, deflate Connection: keep-alive Answer from server: HTTP/1.1 200 OK Server: ASP.NET Development Server/10.0.0.0 Date: Thu, 16 Feb 2012 11:14:38 GMT X-AspNet-Version: 4.0.30319 Cache-Control: private Content-Type: application/octet-stream Content-Length: 87924 Connection: Close <?xml version="1.0" encoding="UTF-8" standalone="no"?> <!-- Created with Inkscape (http://www.inkscape.org/) --> <svg xmlns: *** FIDDLER: RawDisplay truncated at 128 characters. Right-click to disable truncation. *** For the record, here is useful Q&A for Fiddler: http://stackoverflow.com/questions/826134/how-to-display-localhost-traffic-in-fiddler-while-debugging-an-asp-net-applicati

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• Is this a solution for having multiple SSL certificates on the same IP

  - by Saif Bechan

  I am running CentOS running on a VPS. I read some guides on having multiple SSL certificates on the same system, but I can not get the basics to work. The guide I got that makes the most sense to me is the doing the following. In CentOS I can make virtual NIC's. So I made 2 virtual NIC's to start with. 192.168.10.1, 192.168.10.2. Now I work in ISP manager Pro, so this is listening on my primary ip 1.1.1.1 For each website I have them listening on 192.168.10.1:80, 192.168.10.1:443 In the hosts file I made the following 2 entries 192.168.10.1 1st.com 192.168.10.2 2nd.com Now the strange thing is that when I browser to 1st.com I do not get the website located at 192.168.10.1, I get the website located at my prim IP 1.1.1.1 Should I do something like forwarding or routing for this setup to work? And the basic question: Will this setup even work? Are the SSL certificates based on the IP adress, or are the based on the host name, 1st.com and 2nd.com.

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