Attention, Internet Explorer User Announcement: Jive has discontinued support for Internet Explorer 7 and below. In order to provide the best platform for continued innovation, Jive no longer supports Internet Explorer 7. Jive will not function with this version of Internet Explorer. Please consider upgrading to a more recent version of Internet Explorer, or trying another browser such as Firefox, Safari, or Google Chrome. (Please remember to honor your company's IT policies before installing new software!).
How Browsers Work With File Downloads Usually when a user goes to a file URL (for example: a download link), the file will show in the browser if the browser supports it. Image files like jpg, png, gif etc. Will almost always show in the browser. Archive files like zip, tar, gzip etc. Will always be downloaded. Some file types show up in some browsers but not others depending on if the browser can read the file or not.
For example, Internet Explorer (IE) will usually try to show Microsoft Word files (doc and docx) in the browser, while most other browsers will download it. Google Chrome has its own PDF converter and it will try to convert a PDF file and render it in the browser. The key thing to understand is that some browsers maybe able to read a particular file type based on the addons you have installed for that browser while others may not be able to. If a browser can read the file type it will show it in the browser. If the browser cannot read a file type it will force a download to the hard disk. Usually this is not an issue since the users can save the file to their computer after it is shown in the browser.
How to Force a File Download For All My Files Some users prefer that all the files should be forced downloaded (no showing in the browser). There are a few things you can do to ensure that.
Option 1: The easiest solution is to put your file (example: a PDF file, a movie file) inside a zip file if possible (If you are using the plugin then you can't do this unfortunately). Browsers cannot read zip file so it will force a download. Most computer users know to unzip the file and get the content from inside. Option 2: Most browsers have a settings where it lets the users specify if they want to force download a certain type of files (for example: a pdf file). You can instruct your users to use this option if you think it will help them (again this is common knowledge and most internet users know this).
Option 3: You can add the following lines of code in your.htaccess file of your server to force a download of a particular file type from your server (in this example it is for PDF file types): ForceType application/octet-stream Header set Content-Disposition attachment You can change 'pdf' to any other file type based on your need (example: mp3, mp4, doc). Force File to Download from Your Amazon S3 Account If you are storing your files to your amazon S3 account (instead of your server) then do the following to force a download on those files. Set the correct headers on your files in Amazon S3 in order to force the browser to download rather than opening the file. Set these: Content-Disposition: attachment; filename=FILENAME.EXT Content-Type: application/octet-stream You will need to set them when uploading the files to S3.
Is there any way to accomplish option 3 with files hosted on Amazon S3? I'm setting up a site to sell audio files. The sample excerpts are stored at my web site, and I DO want those to play in the browser (via the plugin mp3-jplayer for WordPress). The full size audio files for purchase will be stored at S3. I realize option 1 is the easiest (and I've heard that zipping also helps prevent file corruption in transit), but it adds an extra step for the customer.
Probably not a big deal, but I'd like to know what my options are. Much of the S3 documentation is above my skill level, but I'll check there as well. Yes - you're exactly right, wzp! I figured out what to add based on option 3 above.
For other newbies who have this issue, here's the workflow: In the S3 console, select an object (in my case, an audio file), and then click the 'properties' button (if the properties window at the bottom isn't already visible). Click the 'metadata' tab. In my case, 'Key' was by default set to 'Content-Type' and 'Value' was set to 'application/octet-stream.' I left that as-is. (It was an AAC (.m4A) file; for an.mp3 file, the Content-Type was set to audio/mpeg. I left that unchanged too.) Click the 'add more metadata' button, and add: Key: Content-Disposition Value: attachment I then ran a test purchase in the PayPal Sandbox, and the files downloaded instead of loading in the browser, which they had previously done. Setting each object manually might be a pain for those with large numbers of files, but it'll be fine for me.
Follow up question: Previously, when the audio file loaded in the browser (instead of downloading), the URL in the address bar included my S3 Access Key ID - not simply the encrypted link. Is that a security risk? Thanks again. I have found a way to add the metadata to all the files of a bucket or just a folder in a couple of clicks with CloudBerry Explorer.
1- right click your folder (or bucket) and select 'Set Http Headers' 2- In the new window, click 'Add' 3- For Http Headers, choose: 'content disposition' and for Value: attachment; filename= 4- Click 'OK' 5- At the bottom, select: Keep existing headers, overwrite values for headers with the same name and add new headers (from the list specified above) 6- Then, all your files will be modified in seconds.:-).
By on May 18, 2017 in - Last Update: May 18, 2017 Google Chrome users on Windows are to disable automatic downloads in the web browser to protect authentication data against a new threat discovered recently. The Chrome browser is the most popular browser right now on desktop devices. It is configured to download safe files automatically to the user system without prompt by default.
Any file that Chrome users download that passes Google's safe browsing checks will land in the default download directory automatically. Chrome users who want to pick the download folder instead for downloads need to change that behavior in the options. The new attack, described in detail on the Defense Code website, combines Chrome's automatic download behavior with Windows Explorer Shell Command File files that have the.scf file extension.
The aging format is a plain text file that includes instructions, usually an icon location and limited commands. What's particularly interesting about the format is that it may load resources from a remote server.
Even more problematic is the fact that Windows will process these files as soon as you open the directory they are stored in, and that these files appear without extension in Windows Explorer regardless of settings. This means that attackers could easily hide the file behind a disguised filename such as image.jpg. The attackers use a SMB server location for the icon. What happens then is that the server requests authentication, and that the system will provide that. While password hashes are submitted, the researchers note that cracking those passwords should not take decades anymore unless they are of the complex kind.
Regarding password cracking feasibility, this improved greatly in the past few years with GPU-based cracking. NetNTLMv2 hashcat benchmark for a single Nvidia GTX 1080 card is around 1600 MH/s. That's 1.6 billion hashes per second. For an 8-character password, GPU rigs of 4 such cards can go through an entire keyspace of upper/lower alphanumeric + most commonly used special characters (#$%&) in less than a day.
With hundreds of millions leaked passwords resulted from several breaches in the past years (LinkedIn, Myspace), wordlist rule-based cracking can produce surprising results against complex passwords with more entropy. The situation is even worse for users on Windows 8 or 10 machines who authenticate with a Microsoft account, as the account will provide the attacker with access to online services such as Outlook, OneDrive, or Office365 if used by the user.
There is also the chance that the password is reused on non-Microsoft sites. Antivirus solutions are not flagging these files right now. Here is how the attack goes down. User visits a website which either pushes a drive by download to the user system, or gets the user to click on a specially prepared SCF file so that it gets downloaded. User opens the default download directory. Windows checks the icon location, and sends authentication data to the SMB server in hashed format.
Attacks may use password lists or brute force attacks to crack the password. How to protect your system against this attack One option that Chrome users have is to disable automatic downloads in the web browser. This prevents drive by downloads, and may also prevent accidental downloads of files. Load chrome://settings/ in the browser's address bar. Scroll down and click on the 'show advanced settings' link. Scroll down to the Downloads section. Check the preference 'Ask where to save each file before downloading'.
Chrome will prompt you for a download location each time a download is initiated in the browser. Caveats While you add a layer of protection to Chrome's handling of downloads, manipulated SCF files may land in different ways on target systems. One option that users and administrators have is to block ports used by SMB traffic in the firewall.
Video Downloader Internet Explorer 11
Microsoft has a up that you may use for that. The company suggests to block communication from and to the Internet to the SMB ports 137, 138, 139 and 445. Blocking these ports may affect other Windows services however such as the Fax service, print spooler, net logon, or file and print sharing. Now You: How do you protect your machines against SMB / SCF threats? Windows 10 users aren't affected by SMB holes cause it's patched + there is Windows Defender which also already got the database signatures immediately.
For older OS users you can disable it via registry: Windows Registry Editor Version 5.00; HKEYLOCALMACHINE SYSTEM CurrentControlSet Services LanmanServer Parameters 'SMB1'=dword:00000000 'SMB2'=dword:00000000 The thing is that disabling every single service is a no go, because in sever environment this isn't a 'solution' because you depending on such services and that's the real issue not the single user targets.
. Tip: To change the name of a PDF file you want to download, the download link and select Save As.
Microsoft Edge users Because Microsoft Edge is integrated into Windows 10, you'll need to go into the Windows settings to change the default PDF file viewer. Press the on your keyboard, type Default Programs, and then press Enter. In the Settings window, in the section to the right, scroll down click Choose default apps by file type. Scroll down until you see the entry for the.pdf file extension, and then click the box to the right of it. In the menu that appears, select the program you want to use to view PDFs.
Internet Explorer users. Open.
Internet Explorer Download Without Prompt
Click the Internet Explorer Tools button and select Manage add-ons. Under the Toolbars and Extensions option, click on the Show drop-down list and select Run without permissions. In the displayed list of add-ons and extensions, find Adobe PDF Reader. Select the extension and click the Disable button in the bottom right of the Manage Add-ons window. Next time you download and open a PDF file, your default program will be used instead of Adobe PDF Viewer.
Google Chrome users By default, should open a in the browser and not save the PDF in the download folder to be opened by a PDF editor such as Adobe Reader. To change how Google Chrome treats PDF files in the browser follow the steps below. Open Google Chrome. Click on the Menu icon ( ) in the top-right corner of the Window.
Click Settings. Scroll down to the bottom of the Settings window and click Advanced.
In the Privacy and security section, click Content Settings. Scroll down and click the PDF documents option. Change the 'Download PDF files instead of automatically opening them in Chrome' option from the on position (blue) to the off position (grey). Close the Settings tab and now any PDF should be opened in Chrome instead of being downloaded.
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Tip: If you do want PDFs to be downloaded instead of opened in Chrome, you can follow these steps and turn on the 'Download PDF files instead of automatically opening them in Chrome' option. To enable the ability for Chrome to open and display PDF files in the Chrome browser window, follow the steps above and in step 5, uncheck the box for the Open PDF files in the default PDF viewer application option. Mozilla Firefox users. Open.
Click the menu button and select Options. Within the Options window, click Applications. Under the Content Type column, select the Portable Document Format (PDF) option.
In the Action column, click the down arrow on the right-hand side of the box. In the drop-down menu that appears, select your new default PDF reading program. Opera users Once you've set your default PDF viewer program in Windows (see Microsoft Edge section) or a different browser, the following steps will 'activate' it in Opera. Open the Internet browser.
Click the Opera menu button in the upper left corner. Select Settings from the that appears. Under the Basic menu, locate the PDF Documents section at the bottom of the window. Check the box next to Open PDF files in the default PDF viewer application. Note: If you do not see the PDF Documents or the Open PDF files in the default PDF viewer application option, type pdf in the Search settings text box at the top of the Settings page. In the Open PDF files option check or uncheck the box.