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  • If all variables are a subset of the superkey, is the database design 5NF? [migrated]

    - by Lukazoid
    I have a table called LogMessages, which has the following columns: Level A numeric value which represents Trace, Debug, Info, Warning, Error or Fatal Time A UTC time Message Foreign key to a Messages table Source Foreign key to a Sources table User Foreign key to a Users table From what I can see, all of these columns are a part of the super key; if any single value differs to an existing row, a new row can be created. My question is, does this design comply to fifth normal form? I am unsure as some groups of data will be repeating, however I don't believe this violates 5NF? (correct me if I'm wrong)

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  • SAP met l'accent sur son Cloud, le In-Memory et la mobilité et fait la promotion du temps-réel au SAPPHIRE NOW

    SAP : Cloud, In-Memory et mobilité Lors du SAPPHIRE NOW l'éditeur rappelle qu'il s'est diversifié et fait la promotion du temps-réel Depuis aujourd'hui, la grand messe de SAP, le SAPPHIRE NOW, se tient à Madrid. L'évènement regroupe plus de 10.000 personnes et s'est ouvert dans une ambiance de sciences fiction fortement inspirée de Riddley Scott. Mais derrière ce show d'ouverture « à l'américaine », très solennel et montrant un futur transformé (en bien) par les progrès technologiques, le message de SAP est lui bien ancré dans le présent : SAP a changé et veut le faire savoir. Il n'est plus l'éditeur d'un seul produit. Cloud, In-Memory et mobilité sont devenus ses trois piliers.

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  • Migrate from Thunderbird to Mutt

    - by deshmukh
    I am contemplating moving from Thunderbird to Mutt (provided it is feasible) to move to a faster, simpler application. My current Thunderbird set-up consists of multiple IMAP accounts (gmail and google apps). Only selected folders (read labels) in each IMAP account are stored locally. For all other folders, I glance through the headers and open a message only if I find it interesting. I also use folder bookmarks to navigate to folders quickly. I also move messages across folders with keyboard shortcuts. Is it possible to replicate the set-up in Mutt? Can someone share/ point to a sample muttrc file that does the same thing? It would be great if the muttrc file is adequately commented. On a side note, will it also be possible to import my messages from Thunderbird locally? That will save me considerable network traffic (about 2GB data stored locally).

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  • Caching all files in varnish

    - by csgwro
    I want my varnish servers to cache all files. At backend there is lighttpd hosting only static files, and there is an md5 in the url in case of file change, ex. /gfx/Bird.b6e0bc2d6cbb7dfe1a52bc45dd2b05c4.swf). However my hit ratio is very poorly (about 0.18) My config: sub vcl_recv { set req.backend=default; ### passing health to backend if (req.url ~ "^/health.html$") { return (pass); } remove req.http.If-None-Match; remove req.http.cookie; remove req.http.authenticate; if (req.request == "GET") { return (lookup); } } sub vcl_fetch { ### do not cache wrong codes if (beresp.status == 404 || beresp.status >= 500) { set beresp.ttl = 0s; } remove beresp.http.Etag; remove beresp.http.Last-Modified; } sub vcl_deliver { set resp.http.expires = "Thu, 31 Dec 2037 23:55:55 GMT"; } I have made an performance tuning: DAEMON_OPTS="${DAEMON_OPTS} -p thread_pool_min=200 -p thread_pool_max=4000 -p thread_pool_add_delay=2 -p session_linger=100" The main url which is missed is... /health.html. Is that forward to backend correctly configured? Disabling health checking hit ratio increases to 0.45. Now mostly "/crossdomain.xml" is missed (from many domains, as it is wildcard). How can I avoid that? Should I carry on other headers like User-Agent or Accept-Encoding? I thing that default hashing mechanism is using url + host/IP. Compression is used at the backend. What else can improve performance?

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  • need help connecting to bitbucket repository with sourceTree on windows 8

    - by pythonian29033
    I'm having trouble adding and cloning my repo on bitbucket to the sourceTree app, we're only starting with this now and we're a small company, so there's not much knowledge around this. now I've gone through The documentation on sourceTree for help, but I've noticed when I select my repo on bitbucket, it uses the repo url I select and appends a .git at the end. Then a notice message says This is not a valid source path / URL, but when I click Details... I get a dialogBox with nothing in it and an ok button. and when I'm done entering the details the 'Clone' button remains disabled. Is this Windows 8 or am I actually doing something wrong? Now I usually use ubuntu, but we just got these new ASUS ultrabooks at work and it's a pain to install any linux Distro on here. So I'm stuck with windows 8

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  • Cannot start ubuntu-desktop

    - by Jack
    I am mainly a Windows technician and am trying to install ubuntu server. Everything worked fine and I can log in using the shell but when I installed ubuntu-desktop it just refuses to start? I did try startx and I get the message "server already running" I tried "start gdm" (what is this supposed to do?) and it comes back with "Job is already running: gdm" I know that the server version is not really for ubuntu-desktop but all our other servers are like that and I want it, is there any help out there? Ps. the server is running on a VM install that my IT department made for me and I connect to the machine shell using "Tera Ter Web 3.1" Thank you Jack

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  • ASP.NET Tooltips Extender Control

    Tooltips is always a good usability practice to display descripitve and meaningful message on UI, which provide guidance and extra information to users visually. However, I cannot find this kind of handy "control" in the latest version (40412) of the AJAX control toolkit. (Feature request?) The traditional HTML "title" or "tooltips" tag of control cannot make the users (nor even developers) happy, so I searched and found this Tooltip Extender control today. It is nice and handy for...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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  • Nouvelle méthode pour rapporter bugs et suggestions pour le forum avec une meilleure récompense niveau points

    Bonjour à toutes et à tous, Il nous a été rapporté que la manière actuelle de donner des rapports de bugs ou de suggestions sur le forum n'était pas idéale. En effet, un forum est pratique, mais ne vaut pas un réel système de bug tracker. De plus, le système de points ne reflète pas bien ce genre de participation : en effet les opposants à une suggestion n'hésitent pas à moinsser le message d'origine, faisant donc perdre des points à la personne qui suggère, et de plus un bug rapporté résolu ou une suggestion implémentée ne se traduisait par aucune espèce de récompense au niveau des points. Je trouve ceci anormal en sachant que toute idée certes n'est pas bonne à prendre suivant le contexte, mais que personne ne devrait être pénalisé pour avoir eu une idée.

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  • Concurrency Utilities for Java EE 6: JSR 236 Rebooting

    - by arungupta
    JSR 166 added support for concurrency utilities in the Java platform. The JSR 236's, a.k.a Concurrency Utilities for Java EE, goal was to extend that support to the Java EE platform by adding asynchronous abilities to different application components. The EG was however stagnant since Dec 2003. Its coming back to life with the co-spec lead Anthony Lai's message to the JSR 236 EG (archived here). The JSR will be operating under JCP 2.8's transparency rules and can be tracked at concurrency-spec.java.net. All the mailing lists are archived here. The final release is expected in Q1 2013 and the APIs will live in the javax.enterprise.concurrent package. Please submit your nomination if you would like to join this EG.

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  • how to fix error when authenticating in U1

    - by Yann
    Like other users, when authenticating in U1 I get this error: Method "CreateItem" with signature "a{sv}(oayay)b" on interface "org.freedesktop.Secret.Collection" doesn't exist. And in /var/log/auth.log: gnome-keyring-daemon[4793]: egg_symkey_generate_simple: assertion `iterations >= 1' failed gnome-keyring-daemon[4793]: couldn't prepare to write out keyring: /home/yann/.gnome2/keyrings/login_1.keyring So I tried to move "login.keyring". I typed no password for the security when logging into U1, accepted non secured way to save passwords. And a message told me the operation successfully completed (in French). But, sync did not work. And u1sdtool --status returned this: State: AUTH_FAILED connection: With User With Network description: auth failed is_connected: False is_error: True is_online: False queues: WORKING I'm sorry U1 doesn't work anymore; it was really useful to me. Can you help me ? Ubuntu 11.10

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  • How long to wait before Humble Bundle games appear in Software Centre?

    - by Synesso
    At software-center.ubuntu.com it says Thank you for downloading your Humble Bundle games from the Ubuntu Software Center Notes: As these games have been recently added to Ubuntu Software Center it might take a minute for them to appear. If you see a "Not found" message, Ubuntu Software Center is working in the background to update the list of available apps. When I click on a link, the software centre opens and it says There isn’t a software package called “swordandsworcery” in your current software sources. I have waited for about 30 minutes now. I have also executed sudo apt-get update & restarted software centre to no avail. Do I keep waiting?

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  • Wake-on-lan under Ubuntu 12.04

    - by iUngi
    I would like to setup the wake-on-lan, the two PCs are connected through a switch. Here is the configuration of the eth0, in the BIOS I couldn't find any information regarding the wake-on-lan. Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Link partner advertised pause frame use: Symmetric Link partner advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: MII PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000033 (51) drv probe ifdown ifup Link detected: yes After I shut down the PC, I used different tools to send out the magic package, but nothing happens. Any suggestion?

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  • restarted my computer and my wireless icon was missing and my sound no longer works

    - by Justin Otto
    I recently updated to 12.04 on my sony vaio VGN-N110G. I've had ubuntu on this laptop since 10.04 and haven't had any real problems. so i restarted my computer today and none of the unity desktop background showed up only the desktop with the files on it so i brought up the terminal and entered in unity -replace and restarted it and it came back up fine except that i noticed that my panel only had mail, volume, date/time, and power icons no wireless or bluetooth, i tried a couple of approaches to try and get it working again i tried nm-applet --sm-disable and it brought up a warning message, i'm not very skilled in code even though i've had ubuntu for four years but in the past versions it wasn't too big a problem

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  • Apple intègre un code JavaScript sur son site pour cacher les excuses qu'il doit adresser à Samsung par décision de justice

    « Samsung ne copie pas l'iPad », Apple est contraint d'afficher ce message par voie publicitaire Suite à une décision de justice britannique L'une des batailles juridiques opposant Apple à Samsung pour copie du look-and-feel de l'iPad vient de livrer son verdict. La firme à la pomme vient de perdre le procès intenté contre Samsung sur le territoire britannique sur le design de la Galaxy Tab qui serait trop similaire à celui de l'iPad. [IMG]http://ftp-developpez.com/gordon-fowler/GalaxyTab.jpg[/IMG] Galaxy Tab Le juge britannique Colin Birss a statué que Samsung n'avait pas enfreint les brevets invoqués par Apple, et que les...

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  • HIB Games (Aquaria & Penumbra) cannot find libGL.so.1 even though it exists

    - by aberration
    I'm try to play some Humble Indie Bundle (HIB) games, but I'm getting errors with Aquaria and Penumbra: Overture that are related to the libGL.so.1 file. Aquaria gives this error on launch: Message: SDL_GL_LoadLibrary Error: Failed loading libGL.so.1 And Penumbra: Overture gives this error on launch: ./penumbra.bin: error while loading shared libraries: libGL.so.1: cannot open shared object file: No such file or directory I know that the file libGL.so.1 does exist (in /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1). From past errors like this, I'm guessing that you need to symlink the library to another directory, but I can't figure out which one.

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  • Security settings for this service require 'Basic' Authentication

    - by Jake Rutherford
    Had an issue calling WCF service today. The following exception was being thrown when service was called:WebHost failed to process a request. Sender Information: System.ServiceModel.ServiceHostingEnvironment+HostingManager/35320229 Exception: System.ServiceModel.ServiceActivationException: The service '/InteliChartVendorCommunication/VendorService.svc' cannot be activated due to an exception during compilation.  The exception message is: Security settings for this service require 'Basic' Authentication but it is not enabled for the IIS application that hosts this service..Ensured Basic authentication was indeed enabled in IIS before getting stumped on what actual issue could be. Turns out it was CustomErrors setting. Value was set to "off" vs "Off". Would have expected different exception from .NET (i.e. web.config parse exception) but it works now either way.

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  • Best Practice to return responses from service

    - by A9S6
    I am writing a SOAP based ASP.NET Web Service having a number of methods to deal with Client objects. e.g: int AddClient(Client c) = returns Client ID when successful List GetClients() Client GetClientInfo(int clientId) In the above methods, the return value/object for each method corresponds to the "all good" scenario i.e. A client Id will be returned if AddClient was successful or a List< of Client objects will be returned by GetClients. But what if an error occurs, how do I convey the error message to the caller? I was thinking of having a Response class: Response { StatusCode, StatusMessage, Details } where Details will hold the actual response but in that case the caller will have to cast the response every time. What are your views on the above? Is there a better solution?

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  • Configure htaccess to show index.php as the default page instead of permissions error

    - by Jan De Laet
    Having a problem with my .htaccess. I have this to secure all my documents: Order Deny,Allow Deny from all Allow from 127.0.0.1 <FilesMatch "\.(htm|html|css|js|php)$"> Order Allow,Deny Allow from all Allow from 127.0.0.1 </FilesMatch> Now everything works fine except that the index page of www.mysite.com doesn't work and gives me the notification: You don't have permission to access / on this server. How can you fix this? If there stands www.example.com/index.php it works but if you surf to www.example.com I get this message.

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  • CMake can not find PythonLibs

    - by tintin
    I am trying to build inria Graphite on my ubuntu which is running in a VirtualBox simulator, I follow the instructions, and install the python-dev packages, but when I run cmake , still got an error: CMake Error at /usr/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:108 (message): Could NOT find PythonLibs (missing: PYTHON_LIBRARIES PYTHON_INCLUDE_DIRS) (Required is at least version "3.2") Call Stack (most recent call first): /usr/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:315 (_FPHSA_FAILURE_MESSAGE) /usr/share/cmake-2.8/Modules/FindPythonLibs.cmake:208 (FIND_PACKAGE_HANDLE_STANDARD_ARGS) src/packages/OGF/gel_python3/CMakeLists.txt:11 (FIND_PACKAGE) I checked the /usr/lib/ and find tintin@tintin-VirtualBox:/usr/lib$ find . -name "libpython*" ./x86_64-linux-gnu/libpython3.4m.so.1.0 ./x86_64-linux-gnu/libpython2.7.so.1.0 ./x86_64-linux-gnu/libpython3.4m.a ./x86_64-linux-gnu/libpython2.7.a ./x86_64-linux-gnu/libpython3.4m.so ./x86_64-linux-gnu/libpython2.7.so ./x86_64-linux-gnu/libpython2.7.so.1 ./x86_64-linux-gnu/libpython3.4m.so.1 so why cmake can not find the PythonLibs, or how should I deal with this?

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  • how can I contact Google about a domain misuse?

    - by questy
    I was trying to add a newer domain of mine to my existing Google Apps account with an already set primary domain. Google Apps then returns the message that the domain is already in use by another account. I tried finding a way to contact Google, but they have a wall up preventing anyone with an original Apps account from calling them. There's a help page saying to try retrieving the password, but how is that even possible? I don't know the email address of the owner of the Apps account using my domain, and I don't know his/her name on the account, so I can't complete the form for retrieving any of the information. Google Productforums is always a dead end. Does anyone here know how to force a removal of a domain on Google Apps from someone that doesn't own it?

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  • How to Hashtag (Without Being #Annoying)

    - by Mike Stiles
    The right tool in the wrong hands can be a dangerous thing. Giving a chimpanzee a chain saw would not be a pretty picture. And putting Twitter hashtags in the hands of social marketers who were never really sure how to use them can be equally unattractive. Boiled down, hashtags are for search and organization of tweets. A notch up from that, they can also be used as part of a marketing strategy. In terms of search, if you’re in the organic apple business, you want anyone who searches “organic” on Twitter to see your posts about your apples. It’s keyword tactics not unlike web site keyword search tactics. So get a clear idea of what keywords are relevant for your tweet. It’s reasonable to include #organic in your tweet. Is it fatal if you don’t hashtag the word? It depends on the person searching. If they search “organic,” your tweet’s going to come up even if you didn’t put the hashtag in front of it. If the searcher enters “#organic,” your tweet needs the hashtag. Err on the side of caution and hashtag it so it comes up no matter how the searcher enters it. You’ll also want to hashtag it for the second big reason people hashtag, organization. You can follow a hashtag. So can the rest of the Twitterverse. If you’re that into organic munchies, you can set up a stream populated only with tweets hashtagged #organic. If you’ve established a hashtag for your brand, like #nobugsprayapples, you (and everyone else) can watch what people are tweeting about your company. So what kind of hashtags should you include? They should be directly related to the core message of your tweet. Ancillary or very loosely-related hashtags = annoying. Hashtagging your brand makes sense. Hashtagging your core area of interest makes sense. Creating a specific event or campaign hashtag you want others to include and spread makes sense (the burden is on you to promote it and get it going). Hashtagging nearly every word in the tweet is highly annoying. Far and away, the majority of hashtagged words in such tweets have no relevance, are not terms that would be searched, and are not terms needed for categorization. It looks desperate and spammy. Two is fine. One is better. And it is possible to tweet with --gasp-- no hashtags! Make your hashtags as short as you can. In fact, if your brand’s name really is #nobugsprayapples, you’re burning up valuable, limited characters and risking the inability of others to retweet with added comments. Also try to narrow your topic hashtag down. You’ll find a lot of relevant users with #organic, but a lot of totally uninterested users with #food. Just as you can join online forums and gain credibility and a reputation by contributing regularly to that forum, you can follow hashtagged topics and gain the same kind of credibility in your area of expertise. Don’t just parachute in for the occasional marketing message. And if you’re constantly retweeting one particular person, stop it. It’s kissing up and it’s obvious. Which brings us to the king of hashtag annoyances, “hashjacking.” This is when you see what terms are hot and include them in your marketing tweet as a hashtag, even though it’s unrelated to your content. Justify it all you want, but #justinbieber has nothing to do with your organic apples. Equally annoying, piggybacking on a popular event’s hashtag to tweet something not connected to the event. You’re only fostering ill will and mistrust toward your account from the people you’ve tricked into seeing your tweet. Lastly, don’t @ mention people just to make sure they see your tweet. If the tweet’s not for them or about them, it’s spammy. What I haven’t covered is use of the hashtag for comedy’s sake. You’ll see this a lot and is a matter of personal taste. No one will search these hashtagged terms or need to categorize then, they’re just there for self-expression and laughs. Twitter is, after all, supposed to be fun.  What are some of your biggest Twitter pet peeves? #blogsovernow

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  • How to configure path or set environment variables for installation?

    - by Orr22
    I'm aiming to install APE in Ubuntu 14.04 LTS, a simple code for pseudopotential generation. I'm having this error message while running ./configure: checking for gsl-config... no checking for GSL - version >= 1.0... no *** The gsl-config script installed by GSL could not be found *** If GSL was installed in PREFIX, make sure PREFIX/bin is in *** your path, or set the GSL_CONFIG environment variable to the *** full path to gsl-config. configure: error: could not find required gsl library I checked and I have the GSL already installed: :~/Programas/ape-2.2.0$ dpkg -l | grep gsl ii libgsl0ldbl 1.16+dfsg-1ubuntu1 i386 GNU Scientific Library (GSL) -- library package So I have the library but the program installation isn't finding it. Any help? Thanks in advance

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  • How can I get a 1920x1080 resolution?

    - by Sam T.
    I a newbie Linux and have just installed Ubuntu in a dual boot with Windows 7. I love the interface of Ubuntu but unfortunately I can only get a 800x600 or 1024x728 resolution with black bars all around the screen. I have an nVidia GTX 570 graphics card and an Asus 1080p 23" monitor. What may be of note is that I had to use the nomodeset command on installation of the boot would get stuck at a line with "nouveau", which I understand is to do with the drivers. Additionally, when I type in xrandr to the terminal, it comes up with the error message "failed to get size of gamma for output default". I guess what I am looking for here is someone who could explain to me really simply the steps I have to take to get a full 1080p resolution, at which point I am sure i will become a great fan of the OS! Thanks in advance, Sam T.

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  • samba share not allowing windows pc to access

    - by user72289
    I have been trying to no avail, to share folders on my ubuntu pc with a windows network. The windows network isn't a homegroup, just a straight up access to folders made public. I can see the ubuntu shares I make, but when I try to access them I get a permission denied contact your system administrator type message. Could someone clarify the area re adding a user to samba, as there are about 30 different unix usernames! I just want my windows network to have unrestricted access to my linux folders. Any help would be greatly appreciated

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  • OpenVZ: Choosing right MySQL-Server depending on host

    - by Scheintod
    What I have: Two servers running Wheezy/OpenVZ with One MySQL container on each host master/master replicated (mysql1/mysql2) Replicated DNS on each host (dns1/dns2) different web-containers on each host but regulary backuped to the other. What I want: Each container should use the "local" MySQL-Server (the one which runs on the same hardware-node). I'd like to be able to move the web-containers between the to hosts. Each container should choose the MySQL-Server (semi) automatically. This scheme should continue working if one host is down. What I tried: Currently I'm keeping track on which container should run on which host by DNS entries which are queries by scripts e.g. for questions like: "Which container should be backuped on/to which host." For choosing the right MySQL server I have one extra entry like "mysql.container_abc" which resolves to either mysql1/mysql2. So in the applications in the container I can use "mysql.container_abc" for e.g. mysql_connect and if I want to move the container around I just need to change the dns. Now I notices one problem with this approach: Every mysql_connect generates one DNS query because the dns is not cached and this slows the request down unnecessarily. What I would like better: Some way of passing the information on which host we are running to the container and using it directly instead of using DNS. E.g. some way of setting a custom /etc/hosts entry in the container. Or any other great idea. Doesn't have to include DNS but shouldn't require to much special "magic" inside the container.

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