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When I browse any page, Inspect element appear in screen. Console shows some error code like,
403, 404, 400.It happened every single minute. Even when I write my question in stack overflow, it appears four or five times. It's impact in my device too. It's really disgusting, it hampers my workflow.
I really need your help.
The classic 404-error is annoying for webmasters and users. If 404-errors accumulate, this can be a sign for users and search engines that the website is badly maintained. 404 errors can be identified using a number of tools, for example the Google Search Console, or the Ryte Suite.
It is also advisable to create a special 404 error page so that usability is not affected.
Humor is often used on 404-error pages, or a search bar to animate users and encourage them to search for the desired content on the target page.
A 404 error page should contain the following elements:
Polite or humorous apology for the mistake
Alternatives to the desired page, the desired product (for example, online stores), or alternative articles (such as blogs)
Option for the user to report the error so that it can be removed
Direct reference to the main navigation
A separate search bar to search for further content
Design of the error page to conform to the corporate design so that it is not perceived as a foreign object
Contact options
If you manage to keep the visitor on your website despite a 404-error page, the purpose of a proper 404-error page would be achieved and it would decrease the bounce rate and possibly still make a conversion.
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I know it's generally considered as insecure, but it really depends on situation. I don't want to replace valid screen lock, I want to have possibility to choose based on situation. 2 sample usecases:
kids: I want to enable her to watch show, but I would like to block 'work cooperation' on any of mine projects, and I need not to have spare hw available
at secure work site: any college need not to poke at my screen, he can trivially clone/get whatever he wants, because he has same access. So I would like to lock screen against jokers who would like to write something under my name, but while helping someone I'd like progress of some process going on my screen. Ie. ANY monitoring screen, where we want to show status 24*7, but disallow unauthorized input.
I don't expect even naive hacking attempts in these usecases, so not 100% bulletproof lock is fine.
Some time ago, there was project named pyxtrlock, but it was deprecated. Is there some replacement? Or is there better way how to secure monitoring systems?
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When I enter a website, is there a way they would know that I'm using my Adblock filters to block a few images from loading/appearing?
Sure, there are a number of methods that can be used to detect the presence of an Adblock-like extension. Whether a site actually captures that data and logs it is another question.
See this SO question: How to detect Adblock on my website?
Here's a live demo: Adblock Plus detection demonstration
Generally, the technique is to write an invisible element onto the page that you know will be blocked if the user has Adblock installed, such as a JS file with the word "ad" in the title. Then, using jQuery, you can check to see if that element exists in the DOM. If not, then it's being blocked. Based on that result, you could display a message, send a PUT request to your server to log it, and so on.
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Is there any way to force Excel 2013 to open files within the same window instance?
I am extremely disappointed that Microsoft is forcing it's users to open multiple instances for every workbook they open. Why on earth would they take away this feature?
This is not making us more productive. Why don't we just start opening a new browser instance every time we visit another website?
I'm constantly opening CSV files throughout the day. I would prefer to have this consolidated to a single instance of excel and the option to drag a tab away from the window when I need a new instance. Microsoft please fix this!
Anyhow, if anyone knows of a hack to work around this I'd like to know.
Thanks in advance!
Apparently, according to Microsoft, this is done by design. They are so excited by this feature that they have even created this blog article to show it off and explain why it's so great.
Unfortunately, there's no way easy or free way to achieve what you want, at least I'm not aware of one.
However, there's a website called "Extend Office" (I have no affiliation with them what-so-ever) that sells various Excel add-ins. One of the add-ins is called Office Tab, which seems to be able to do what you want. There's a trial version for 30 days after which you need to buy. Up to you if you want to go for it or not, I merely point out its existence and I'm in no way endorsing or discouraging it (I've not even tried it!).
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Can anybody explain me the algorithm involved in Memory de-duplication in the Linux kernel
https://www.ibm.com/developerworks/library/l-kernel-shared-memory/
I am finding it difficult to understand and implement it. Can anybody explain me this in simple steps.
The article you've linked appears to be fairly simple as it is.
Application advises kernel (using madvise() syscall) that certain region of its memory may contain duplicate pages.
ksmd adds the pages in this region to a "volatile list" (tree actually, for ease of later look up). "Volatile" means that the pages are still likely to change.
For each page in "volatile" list a checksum is computed. ksmd will scan all the pages in the list every now and then to see if checksum had changed. If it's indeed different every time, nothing has to be done (page is still "volatile").
If, after some number of scans ksmd notices that a checksum for some particular page stopped changing between iterations (page had "stabilized"), it can be put on a "stable" list.
ksmd will scan all existing pages in the "stable" list to see if there is a page already which matches the content of the candidate page. If such page is found, then the candidate page is discarded, and existing page from the "stable" list is mapped in its place as read only (and the associated reference count for the stable page is incremented).
If there are now matching pages in the "stable" list, then candidate page is marked as "read only" and moved from "volatile" list to a stable one.
If application tries to modify a "stable" page it will hit a "protection error" inside kernel. The error handler will invoke ksmd to check whether the page is on its "stable" list. If yes, it will make a writable copy of that page and tuck it back to the "volatile" list, unmapping the "stable" page from the application address space and decrementing "stable" page's reference count (if count hits 0 at this stage, the "stable" page is freed).
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I wanted to know that sometimes when I search for something on google it shows some results(website links), but it also shows some important links on that website.
I wanted to know that is it a feature of the website or Google uses something to find those main links of the website? Is it related to search engine optimization?
You probably mean Google’s sitelinks.
We only show sitelinks for results when we think they'll be useful to the user. If the structure of your site doesn't allow our algorithms to find good sitelinks, or we don't think that the sitelinks for your site are relevant for the user's query, we won't show them.
(See this [closed] question.)
It has to do with click-through rates of those links. For example, Googling 'Amazon' brings up amazon.com, with a handful of links below: Books, Kindle e-Books, Music, etc.
These are obviously popular categories on Amazon, and Google tracks where users click, then uses that data to make serps more relevant.