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• Accessing local files through an http:// address

  - by RexE

  I would like to access a folder of mp3 files on my local Windows machine through http:// addresses. For example, typing http://localhost:9999/songs/test.mp3 into my browser would play test.mp3, which sits in a specified folder on my C: drive. What is the very simplest way to do this? (Background: a program I'm using wants me to enter the URLs of these files, but assumes they are remote and accessed over http. It doesn't accept URLs of the form file://C/Users.... So, I'd like to give these local files addresses that makes them "look" remote.)

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• NginX : Route user request to backend

  - by xperator

  The goal is to have NginX webserver act as a very basic & simple load balancer/fail-over. But instead of fetching static files from backend and serving it to user, I just want to route/redirect user request to one of the back end servers. upstream backend { server server1.example.com:80; server server2.example.com:80; server server3.example.com:80; } location / { proxy_pass http://backend; } Instead of : User request (example.com/test.file) NginX LB Backend NginX LB User I want to have : User request (example.com/test.file) NginX LB Backend User Is this even possible with NginX ? If not then How can I achieve this goal. UPDATE 1: Is there a way to use rewrite directive with backend upstream ? UPDATE 2: It's not really necessary to use NginX. I just want to have a direct reply from backend to user.

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• New-ActiveSyncMailboxPolicy "not implemented" on Exchange 2007 SP3

  - by Flo

  If I try to run: New-ActiveSyncMailboxPolicy Test directly in the Powershell, it asks me if im sure, and if so, it does what it should. But if I try the same from my example Code in C#, then I get an error, saying that "the current host does not implement it". Other Commands like Set-CASMailbox or Get-ActiveSyncMailboxPolicy work just fine, both in the powershell and my application. The Exchange Server/Windows Server 2008R2 and Domain are all setup completely new (test-environment). Is there a way to make this possible?

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• Java Components Landing Page and Documentation Updates

  - by joni g.

  The new Java Components page provides access to the documentation for tools that are available for monitoring, managing, and testing Java applications. Documentation for the new versions of the following tools is available: JavaTest Harness 4.6. The JavaTest harness is a general purpose, fully-featured, flexible, and configurable test harness that is suited for most types of unit testing. See the JavaTest tab for documentation. SigTest 3.1. SigTest is a collection of tools that can be used to compare APIs and to measure the test coverage of an API. See the SigTest tab for documentation. The following tools are part of Oracle Java SE Advanced and Oracle Java SE Suite. Java Mission Control and Java Flight Control 5.4 are supported in JDK 8u20. Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. See the JMC tab for documentation. Advanced Management Console 1.0 is a new tool that is now available. AMC can be used to view information about the Java applets and Java Web Start applications running in your enterprise, and create deployment rules and rule sets to manage the execution of these applications. See the AMC tab for documentation. Usage Tracker tracks how Java Runtime Environments (JREs) are being used in your systems. See the Usage Tracker tab for documentation.

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• Load Testing Linux Virtual Server

  - by Anubhav Agarwal

  I have configured a Linux virtual network with following configuration 172.17.6.112- VIP 172.17.6.111- Linux Director | |----------172.17.6.113 --- Real Server 1 |----------172.17.6.114 --- Real Server 2 I am using direct routing technique. I am unable to test my LVS network. Are there some good scripts/softwares available for load testing. I am running apache2.0 service on them. I came across with testlvs on the internet but am unable to understand its documentation. Are there more simpler ones I want to test the response time of server using various scheduling algorithms .

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• Is SSD TRIM support still automatic in 12.10?

  - by dam

  Folks I had automatic TRIM working on my laptop running Ubuntu Precise. As in the TRIM guide I added discard to mount options in /etc/fstab, and hdparm --read-sector read 0s immediately after a rm && sync. Using the very same hardware, laptop and SSD, TRIM seems no longer to be automatic after upgrading to Quantal. I recognise the test in the guide I mentioned above may not necessarily work. SSD erase blocks and all that. But Quantal is at least different. After deleting the file and syncing, its data are still on disk and unerased even after waiting several minutes. fstrim will then 0 the dead file's blocks. Once. Repeat the same test five minutes later, and fstrim does nothing. I figure this is probably really a kernel issue, but that box is too black for my spelunking torch. I'm prepared to believe that kernel 3.5 knows what I want better than I do, and all is well despite appearances, but it looks for all the world like TRIM isn't quite all there any more. Anybody have the scoop on TRIM in Quantal/kernel 3.5?

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• nginx timeout albeit ridicolous configuration

  - by Joa Ebert

  The scenario is an API server that should handle uploads. Posting on my.host.com/api/upload should do something with the body the client sends. However the API server has been designed to block the whole request until it fully processed the file, including some analysis which can take up to approx. 5min (...!). This has to change of course. In the meantime I wanted to setup nginx as a load balancer in front of the API servers. I quickly ran into a timeout issue, consulted Google and came up with this ridiculous test configuration: user www-data; worker_processes 4; error_log /var/log/nginx/error.log; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include /etc/nginx/mime.types; access_log off; sendfile on; send_timeout 3600; keepalive_timeout 3600 120; tcp_nopush on; tcp_nodelay on; gzip off; client_header_timeout 3600; client_body_timeout 3600; proxy_send_timeout 3600; proxy_read_timeout 3600; proxy_connect_timeout 1800; proxy_next_upstream error; include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; } And upstream test { server host1; server host2; } server { listen 80; server_name my.host.com; client_max_body_size 10m; location /api/ { proxy_pass http://test; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $host; proxy_redirect off; } } Still, when an upload happens, I get the following result in the error.log: 2010/12/22 13:36:42 [error] 5256#0: *187359 upstream timed out (110: Connection timed out) while reading response header from upstream, client: xx.xx.xx.xx, server: my.host.com, request: "POST /api/upload HTTP/1.1", upstream: "http://apiserver:80/upload", host: "my.host.com" What else could I do? If I look at the log of the API server I still see that it is processing the request and analyzing the file. But I think 3600 seconds as a timeout should be more than enough. This happens even after a could of seconds. And I did a reload and force-reload of the configuration as well of course.

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• How do you save/export changes made in Firebug?

  - by blunders

  Using Firebug to edit CSS, how do I save/export changes made to the CSS? TOOLS: Firefox, Firebug MAJOR UPDATE: If you know of a way to lock the forward/back/refresh on a FireFox tab, please let me know. Otherwise, I've given up on using FireBug/FireDiff as an IDE for CSS, it's nice, but lol... press backspace at the wrong time and ALL your work is gone... funny. So, really like the browser highlighting to CSS/HTML in Firebug. Know any good CSS editors that do this? Really had hope FireBug would work, but for now only see it as being good for ad-hoc inspection and test; meaning using it for what it's made for. UPDATES: @Lèse majesté: Just as an update, "Web Developer add-on" does let you edit CSS, but it does not let you edit/save CSS changes made by Firebug. Meaning you use Firebug to ID and maybe test changes, but it does not let you save the changes from Firebug. Here's a "how to" covering how to use them together: FF + FB + WD @Lèse majesté: Still playing around with FireDiff. It works okay, found one bug already (although I'm just working around it), and there's no "how to" I've been able to find, so I'm just trying every feature and clicking around... (for example, to export a diff you must be over the last item in the list, right click, and select as "Save Diff". The ".diff" is just a text file, no idea why at this point the ext is .diff.

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• Is it good idea to require to commit only working code?

  - by Astronavigator

  Sometimes I hear people saying something like "All committed code must be working". In some articles people even write descriptions how to create svn or git hooks that compile and test code before commit. In my company we usually create one branch for a feature, and one programmer usually works in this branch. I often (1 per 100, I think and as I think with good reason) do non-compilable commits. It seems to me that requirement of "always compilable/stable" commits conflicts with the idea of frequent commits. A programmer would rather make one commit in a week than test the whole project's stability/compilability ten times a day. For only compilable code I use tags and some selected branches (trunk etc). I see these reasons to commit not fully working or not compilable code: If I develop a new feature, it is hard to make it work writing a few lines of code. If I am editing a feature, it is again sometimes hard to keep code working every time. If I am changing some function's prototype or interface, I would also make hundreds of changes, not mechanical changes, but intellectual. Sometimes one of them could cause me to carry out hundreds of commits (but if I want all commits to be stable I should commit 1 time instead of 100). In all these cases to make stable commits I would make commits containing many-many-many changes and it will be very-very-very hard to find out "What happened in this commit?". Another aspect of this problem is that compiling code gives no guarantee of proper working. So is it good idea to require every commit to be stable/compilable? Does it depends on branching model or CVS? In your company, is it forbidden to make non compilable commits? Is it (and why) a bad idea to use only selected branches (including trunk) and tags for stable versions?

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• Bizarre SSH Problem - It won't even start

  - by thallium85

  I recently got Ubuntu 12.04 Precise, got it up and running with some MediaWiki software, static IP on the box and router and was able to access the main page even from a cell phone. Everything seemed great... Then I wanted to finally get rid of the monitor and keyboard and login remotely via SSH. I installed openssh-server, let everything point to port 22 for a test run and installed putty on my Windows XP machine. I got a connection refused. Went back and started checking the Ubuntu install itself... (I'm under root from this point on) $ sudo -s $ service ssh status ssh stop/waiting $ service ssh start ssh start/running, process 2212 $ service ssh status ssh stop/waiting Apparently ssh has stopped or is waiting for something.... $ ssh localhost ssh: connect to host localhost port 22: Connection refused I can't even connect to myself... I checked ufw (firewall) to see if port 22 is doing alright... $ sudo ufw status Status: active To Action From 22 ALLOW Anywhere 22/tcp ALLOW Anywhere 22 ALLOW Anywhere (v6) 22/tcp ALLOW Anywhere (v6) sshd_config shows only Port 22 Is ssh not using the right IP address at all? I just don't get what I did wrong here. When this is up and running I will def change the port number, but for now, I don't want to mess with the default install too much until a test run with putty is successful. Edit: Here are my sshd_config file and my ssh_config file. The command /usr/sbin/sshd -p 22 -D -d -e returns: /etc/ssh/sshd_config line 159: Subsystem 'sftp' already defined. Edit: @phoibus moving the sshd_config file and reinstalling did the trick! service ssh status the above command shows that ssh is now running and I am now able to log in from my windows xp computer remotely via putty. Thanks so much! I can now use my monitor for other things!

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• What is wrong with my expect script?

  - by Bryan

  I'm trying to learn how to use the expect command, to help me automate deployment of some software via shell scripts, and figured I start with something simple to get me started. I've created a file in my home dir called 'foo' using: touch foo And I've created the following script saved as test.exp #!/usr/bin/expect spawn rm -i foo expect "rm: remove regular empty file `foo'?" send "y\r" When I run the script using ./test.exp, it spawns the rm command, but it doesn't appear to send the Y and carriage return. I know I don't have a typo in the expect string, as I've used copy and paste to put in the script. What am I doing wrong?

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• Why are default spamassassin rules not being applied to emails we generate?

  - by Chance

  My company uses a standalone spam-assassin install to test marketing emails, however, mail originating from us does not seem to run the full gamut of test. For example, Spam assassin has a default rule that flags messages that contain the phrase Dear [Something], and it properly flags spam that I feed it.It does not, however, apply that same rule to in house email I send it. Is it possible that spam assassin has white-listed us somehow, perhaps because the mail originates in the same domain as the server or receiver? I believe most of the recent spamassassin questions have been mine, so thanks for bearing with me as I figure this out! Chance EDIT Details on our SA setup: We are piping the emails into the CL with spamc -R < test_email.eml Identical results testing as root or a user, no user_prefs file

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• What have you learned from the bugs you helped discover and fix?

  - by Ethel Evans

  I liked the core of this question, and wanted to re-ask it in a way that made it less about 'fun' and more about 'What do these past mistakes tell us about how we can write and test software better?' As an SDET, I'm always looking for anecdotes about new and interesting ways that programs can fail. I've learned a lot from these tales in the past, and would like to get that from the intelligent people in this community as well. I'd be interested in hearing what the issue was, how it was caught, if you think there was anything that could have reasonably done to catch it earlier or to avoid the same issue on later projects, and any other interesting lessons you took away from this bug. Please only write about bugs you personally were involved with, ideally on a project you worked on (e.g., no "10 years before I was born, this happened and it was FUNNY!" answers). Please vote up answers that are thought-provoking or could change how you develop or test in some way, so this isn't just 'social fun'. Try to avoid voting up something just because it was funny.

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• OPN Exchange @ OpenWorld - Don't Overlook TestFest!

  - by Get_Specialized!

  As part of the Oracle PartnerNetwork Exchange @ OpenWorld conference a “Test Fest” will be taking place from Monday, October 1st - Thursday, October 4th 2012 at the Marriott Marquis Hotel. Were you requested by management to get the most out of your OOW experience and expense?  Looking for something that will help you or a team member get approved by your management to attend this year? Seeking a way to justify having your technical expert out to OOW to help you close a deal?  Then take advantage of training available onsite for your staff or yourself during Oracle OpenWorld; no matter if you are primarily coming to staff a booth, present a session, meet with customers, or attend the OPN PartnerNetwork Exchange. With limited seating available, its adviseable to pre-register today to: Get recognized for your skills, with an OPN Specialist accreditation Take exams that are free of charge for Oracle PartnerNetwork Exchange attendees Help your company get Specialized in a higher level of the OPN Program Get a list of exams , study materials and pre-register using the Schedule Builder tool to reserve a seat in one of the 10 sessions offered on a first come, first serve basis. Remember upon arrival to the testing room, you will need to show proof of valid OPN Membership and have your valid Pearson Vue account ID. For any questions, email the OPN Communications team. Test Fest Schedule Date Session 1 Session 2 Session 3 Monday - October 1 10:30 AM - 12:30 PM 1:00 PM - 3:00 PM 3:30 PM - 5:30 PM Tuesday - October 2 10:00 AM - 12:00 PM 12:30 PM - 2:30 PM Wednesday - October 3 10:30 AM - 12:30PM 1:00 PM - 3:00 PM 3:30 PM - 5:30PM Thursday - October 4 11:00 AM - 1:00 PM 1:30 PM- 3:30 PM Look forward to meeting you at the Oracle PartnerNetwork Exchange

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• How do i get Safari to ignore the SSL Certificate error?

  - by Tangopop

  In IE 6, 7, 8 and Firefox 3.6.3 and 3.0.5 i have installed a local SSL Certificate on the machine i am testing on and i have gotten the browser to igonre the SSL error (which is off one of my Web Test servers) Now i am tryin to do the same thing within safari 4 and with no luck. Basically i am running some automated scripts to test my website before they go live and i need to be able to ignore these errors as they will all run autonomosly. This is the error screen i am trying to avoid: http://library.bowdoin.edu/news/images/ezproxy-err/safari.jpg As i say i have installed the certificate locally and the IE 7 browser on the same machine works fine.

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• curl XPUT returning HTTP 500 error message

  - by pradeepchhetri

  I have added the following changes in nginx configuration. server { listen 8080; root /usr/share/nginx/www; client_body_temp_path /tmp/; dav_methods PUT DELETE MKCOL COPY MOVE; create_full_put_path on; dav_access user:rw group:rw all:rw; } I have my nginx configured with --with-http_dav_module also. But when I am trying to running the command: $ curl -XPUT http://172.16.31.127:8080/test.html -d 'test' I am getting 500 Internal Server error. Can anyone help me out in solving this.

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• Searching for entity awareness in 3D space algorithm and data structure

  - by Khanser

  I'm trying to do some huge AI system just for the fun and I've come to this problem. How can I let the AI entities know about each other without getting the CPU to perform redundant and costly work? Every entity has a spatial awareness zone and it has to know what's inside when it has to decide what to do. First thoughts, for every entity test if the other entities are inside the first's reach. Ok, so it was the first try and yep, that is redundant and costly. We are working with real time AI over 10000+ entities so this is not a solution. Second try, calculate some grid over the awareness zone of every entity and test whether in this zones are entities (we are working with 3D entities with float x,y,z location coordinates) testing every point in the grid with the indexed-by-coordinate entities. Well, I don't like this because is also costly, but not as the first one. Third, create some multi linked lists over the x's and y's indexed positions of the entities so when we search for an interval between x,y and z,w positions (this interval defines the square over the spatial awareness zone) over the multi linked list, we won't have 'voids'. This has the problem of finding the nearest proximity value if there isn't one at the position where we start the search. I'm not convinced with any of the ideas so I'm searching for some enlightening. Do you people have any better ideas?

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• Testing of visualization projects

  - by paxRoman

  We develop small to large visualization projects for different tasks and industries and sometimes while rewriting them a couple of times in the process we hit walls because we discover that we need to add a lot of code to support new requirements. Now we have established a design process that seems to work well (at least we reduced the development time for each new project quite a bit), but we're still left scratching our heads around this question: what exactly should we test when testing visualizations? If everything that we want to explore is on the screen (bounded visualizations)? If the data is ok - if data is valid (that's one of the nice things about visualizations you can spot errors in your datasets)? Usability? User interaction? Code quality? I can tell you for sure that a simple check of the code quality is certainly not enough! Is there a classic paper / book about how to test visualizations? Also do you happen to know about classic design patterns for visualizations (except the obvious ones like Pub-Sub)?

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• Weblogic Threads Usage

  - by Hila

  I have an application deployed on WebLogic 10.3, which exhibits a strange behavior. I am running a constant (not too high) load on my application (20 concurrent users, running a light activity). The response time is reasonable (well below 100ms after the application stabilizes) Memory consumption seems fine (My application creates a lot of short-living objects, but they are garbaged collected so the overall memory consumption stays under 500 mb). Threads stats seem healthy as well: And yet, after I leave my test running for a while, more and more execute threads ("[ACTIVE] ExecuteThread: '3' for queue: 'weblogic.kernel.Default (self-tuning)'") are created, until eventually the application crashes: This test hasn't been running for a long time (All the new threads that you don't see in the first screenshot were created while I was writing this question), and I've seen much more threads being created. Any idea why these threads are being created?

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• Dojo and Separate JavaScript File

  - by Bunch

  For a project I needed to use the ArcGIS API for some mapping. To use this you need to use Dojo but in this case all it really comes down to is adding some require lines and a addOnLoad on your web page. At first everything was working great, the maps rendered and the various layers would populate as needed. Once it was working I started moving the various javascript functions into their own files to keep everything nice and neat. Then the problems started, mainly the map would not show up any more. So that was a pretty big problem. Luckily the fix was pretty simple, just move the dojo.addOnLoad line into it’s own script tag. If I had the dojo.addOnLoad in the same script block as the various require lines it would not work as expected. Works: <script type="text/javascript" language="javascript" src="javascript/test.js" />     <script type="text/javascript">       dojo.require("esri.map");       dojo.require("esri.tasks.locator");       dojo.require("esri.tasks.query");       dojo.require("esri.tasks.geometry");  </script>  <script type="text/javascript">      dojo.addOnLoad(init);  </script> Does not work: <script type="text/javascript" language="javascript" src="javascript/test.js" /> <script type="text/javascript">       dojo.require("esri.map");       dojo.require("esri.tasks.locator");       dojo.require("esri.tasks.query");       dojo.require("esri.tasks.geometry");       dojo.addOnLoad(init); </script> Technorati Tags: JavaScript,Dojo

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• Restore files from certain increments using Duplicity

  - by luckytaxi

  Given the following backup sets ... Found primary backup chain with matching signature chain: ------------------------- Chain start time: Tue Jun 21 11:27:26 2011 Chain end time: Tue Jun 21 11:27:59 2011 Number of contained backup sets: 2 Total number of contained volumes: 2 Type of backup set: Time: Num volumes: Full Tue Jun 21 11:27:26 2011 1 Incremental Tue Jun 21 11:27:59 2011 1 If i run the following command, it works (1308655646 was converted from Tue Jun 21 11:27:26 2011): duplicity --no-encryption --restore-time 1308655646 --file-to-restore ORIG_FILE \ file:///storage/test/ restored-file.txt However, if I run the following command, it restores the from the latest set. duplicity --no-encryption --restore-time 2011-06-21T11:27:26 --file-to-restore \ ORIG_FILE file:///storage/test/ restored-file.txt What am I doing wrong w/ the time? I prefer the second option only because I don't want to have to do the conversion manually.

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• [SOLVED] vmware problems - networking - no packet response

  - by jack

  XP is my host. Ubuntu is my Guest in VMware. When I do the following commands, I should get SMTP respones but now get no response. I use wireshark to analayze it. Also in wireshark shows nothing. root@vmware:~# netcat 192.168.1.2 25 220 762462a8c4d Microsoft ESMTP MAIL Service, Version: 6.0.2600.5949 ready at Fri, 12 May 2010 18:04:20 +0800 EHLO SAYHELLO VRFY TEST@LOCALHOST test \ sdfsafsd How can I fix it? UPDATE: I came to know that this is no VMWare problem. This is Netcat problem. For this, you might have to type Ctrl+M {ENTER} {ENTER}

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• crontab doesn't work on centos 6

  - by sbxmal

  /etc/crontab: SHELL=/bin/bash PATH=/sbin:/bin:/usr/sbin:/usr/bin MAILTO=root HOME=/ 01 * * * * root run-parts /etc/cron.hourly 02 4 * * * root run-parts /etc/cron.daily 22 4 * * 0 root run-parts /etc/cron.weekly 42 4 1 * * root run-parts /etc/cron.monthly */2 * * * * /usr/bin/php -q /home/dorsen/public_html/cron-test.php */2 * * * * http://www.mysiteurl.com/cron-test.php - also doesn't work If i run this file directly in browser - all fine What i did : root@vded10625 [~]# yum remove cronie-anacron .... Complete! root@vded10625 [~]# yum install cronie-noanacron sysstat .... Complete! root@vded10625 [~]# service crond start Starting crond: [ OK ] root@vded10625 [~]# chkconfig crond on root@vded10625 [~]# service crond restart Stopping crond: [ OK ] Starting crond: [ OK ] Will be pleased for any help

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• Using pscp and getting permission denied

  - by Espen

  I'm using pscp to transfer files to a virtual ubuntu server using this command: pscp test.php user@server:/var/www/test.php and I get the error permission denied. If I try to transfer to the folder /home/user/ I have no problems. I guess this has to do with that the user I'm using doesn't have access to the folder /var/www/. When I use SSH I have to use sudo to get access to the /var/www/ path - and I do. Is it possible to specify that pscp should "sudo" transfers to the server so I can get access to the /var/www/ path and actually be able to transfer files to this folder?

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• Is there a way to automate testing for a GNS3 network topology?

  - by Chedy2149

  I'm working on an MPLS backbone topology using GNS3, this topology includes configuration of several networking technologies such as IPv6, BGP, OSPF, IPv6 to IPv4 dynamic tunneling, MPLS based VPNs, MPLS based traffic engineering... So I'm a beginner with basic knowledge in networking (Ipv4 addressing, basic routing and switching) and I can't just easly test if my topology works or not, moreover fiddling with configuration I've noticed that sometimes when getting MPLS config right and missing BGP config all my topology is messed up. Given that I use Cisco 7200 series routers, is there any way to build a test harness for my topology in order to guarentee correctness with a single push button automated process?

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