Add the following line into `mongodb.conf`:

    bind_ip = 127.0.0.1

As @Josh Rickard stated in comments: don&#39;t forget to restart the process after updating the config file: 

    service mongodb restart

As Andreas mentioned in a round-about way:

    mongod --bind_ip 127.0.0.1

Note that although it didn&#39;t appear in the documentation last time I checked, you can also put this setting in the .conf file (vs. command line).

No setting = bind to all ips.

No one mentioned the location of the `mongodb.conf` file which is `/etc/mongodb.conf `. Double check before running the following commands.

    echo &quot;bind_ip = 127.0.0.1&quot; &gt;&gt; /etc/mongodb.conf
    service mongodb restart

This configuration appears to be default in 4.4 on Windows ...

`C:\Program Files\MongoDB\Server\4.4\bin\mongod.cfg`

```
# network interfaces
net:
  port: 27017
  bindIp: 127.0.0.1
```

... in case there are any other &quot;poor, unfortunate souls&quot; supporting or using it.

The title really says it all. A friend of mine told me he knows someone who can program in binary. I&#39;ve never heard of someone programming in binary and a few quick Google searches didn&#39;t return anything useful. So I figured I&#39;d turn to the SO community. Does anyone have any info on programming in binary and if possible maybe a quick Hello World example. Thanks in advance.

Is it possible to program in binary?

I would like to use the CommonJS module system in a clientside javascript application. I chose nodejs as implementation but can&#39;t find any tutorial or docs on how to use nodejs clientside, ie without using `node application.js`

I included node.js like this in my html page:

    &lt;script type=&quot;text/javascript&quot; src=&quot;node.js&quot;&gt;&lt;/script&gt;

Note that I didn&#39;t make nodejs on my local machine, I&#39;m on Windows anyway (I&#39;m aware of the Cygwin option). 
When I want to use the `require` function in my own javascript it says it&#39;s undefined.

    var logger = require(&#39;./logger&#39;);

My question is, is it possible to use nodejs like this?

how to use node.js module system on the clientside

[MongoDB Suggests][1] that the easy way to handle security is to run it in a trusted environment, given that, &quot;in such a configuration, one must be sure only trusted machines can access database TCP ports.&quot;

What would be the best approach for doing this? Is there a way for mongodb to natively only listen to localhost?

I&#39;m using ubuntu 10.10


  [1]: http://www.mongodb.org/display/DOCS/Security+and+Authentication

How to listen only to localhost on MongoDB

<a href="http://www.mongodb.org/display/DOCS/Security+and+Authentication" target="_blank" rel="noopener noreferrer">MongoDB Suggests</a> that the easy way to handle security is to run it in a trusted environment, given that, "in such a configuration, one must be sure only trusted machines can access database TCP ports."
What would be the best approach for doing this? Is there a way for mongodb to natively only listen to localhost?
I'm using ubuntu 10.10

I have two files: `file1` and `file2`. How do I append the contents of `file2` to `file1` so that contents of `file1` persist the process?

How to append one file to another in Linux from the shell?

So here&#39;s the deal. Let&#39;s say I have a directory named &quot;web&quot;, so

    $ ls -la

    drwx------  4 rimmer rimmer 4096 2010-11-18 06:02 web

BUT inside this directory, web/php/

    $ ls -la

    -rw-r--r-- 1 rimmer rimmer 1957 2011-01-05 08:44 index.php


That means that even though the content of my directory, /web/php/index.php has been last modified at 2011-01-05, the /web/ directory itself is reported as last modified at 2010-11-18.

What I need to do is have my /web/ directory&#39;s last modification date reported as the latest modification date of any file/directory inside this directory, recursively.

How do I go about doing this?


in linux terminal, how do I show the folder&#39;s last modification date, taking its content into consideration?

I am using ubuntu 10.10, and when i compile chromium, it said 
`remoting/host/event_executor_linux.cc:9: fatal error: X11/extensions/XTest.h: No such file or directory`

But i have already installed libx11-dev:

    $ sudo apt-get install  libx11-dev
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    libx11-dev is already the newest version.
    0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Please tell me how can I fix my problem.

Thank you.

How to find X11/extensions/XTest.h

I&#39;m asking in both contexts: technically and stylistically.  

Can my application/daemon keep a pidfile in `/opt/my_app/run/`?

Is it very bad to do so?

My need is this: my daemon runs under a specific user, and the implementor must mkdir a new directory in `/var/run`, chown, and chgrp it to make my daemon run.  Seems easier to just keep the pidfile local (to the daemon).

Must my pidfile be located in /var/run?

I am new to Python and am working on a Linux machine (Ubuntu 10.10). It is running python 2.6, but I&#39;d like to run 2.7 as it has features I want to use. I have been urged to not install 2.7 and set that as my default python. 

My question is, how can I install 2.7 and run it side by side with 2.6?

Python 2.7 on Ubuntu

I am trying to change the type of a field from within the mongo shell.

I am doing this...

    db.meta.update(
      {&#39;fields.properties.default&#39;: { $type : 1 }}, 
      {&#39;fields.properties.default&#39;: { $type : 2 }}
    )

But it&#39;s not working!


How to change the type of a field?

I&#39;m writing an application that doesn&#39;t necessarily need **scaling abilities** as it won&#39;t be collecting large amounts data at the beginning. (However, if I&#39;m lucky, I could down the road potentially.)

I will be running my web server and database on the same box (for now).

That being said, I am looking for performance and efficiency. 

The main part of my application will be loading blog articles. Using an RDBMS (MySQL) I will make 6 queries (2 of the queries being joins), just to load a single blog article page. 

    select blog
    select blog_album
    select blog_tags
    select blog_notes
    select blog_comments (join with users)
    select blog_author_participants (join with users)

However, with [MongoDB][1] I can de-normalize and flatten 6 tables into just 2 tables/collections and minimizes my queries to potentially just one 1 query,

    users
    blogs
        -&gt;blog_album
        -&gt;blog_tags        
        -&gt;blog_notes
        -&gt;blog_comments
        -&gt;blog_author_participants

Now, going with the MongoDB schema, there will be some data redundancy. However, hard drive space is cheaper than CPU/servers. 

1.) Would this be a good scenario to use MongoDB? 

2.) Do you only benefit in performance using MongoDB when scaling beyond a single server?

3.) Are there any durability risks using MongoDB? I hear that there is potential for loss of data while performing inserts - as insert are written to memory first, then to the database.

4.) Should this stop me from using MongoDB in production?

  [1]: http://en.wikipedia.org/wiki/MongoDB


When to use MongoDB

I&#39;m developing a web app with mongodb as my back-end. I&#39;d like to have users upload pictures to their profiles like a linked-in profile pic. I&#39;m using an aspx page with MVC2 and I read that GridFs library is used to store large file types as binaries. I&#39;ve looked everywhere for clues as how this is done, but mongodb doesn&#39;t have any documentation for C# api or GridFs C#. I&#39;m baffled and confused, could really use another set of brains.

Anyone one know how to actually implement a file upload controller that stores an image uploaded by a user into a mongodb collection? Thanks a million!

I&#39;ve tried variations of this to no avail.

    Database db = mongo.getDB(&quot;Blog&quot;);
    GridFile file = new GridFile(db);
    file.Create(&quot;image.jpg&quot;);
            
    var images = db.GetCollection(&quot;images&quot;);
    images.Insert(file.ToDocument());



MongoDB GridFs with C#, how to store files such as images?

I was reading my trusty O&#39;Reilly book and came across a passage about how Mongo, by nature, avoids the morass of SQL injection-like flaws.

In my gut, I think I understand this. If unsanitized vars are passed into queries, they can&#39;t break out of the document-oriented query structure with a `UNION`, `JOIN`, query turned comment, etc.

How does MongoDB avoid the SQL injection mess? Is it just by nature of this query syntax?



How does MongoDB avoid the SQL injection mess?

When using MongoDB, are there any special patterns for making e.g. a paged view? 
say a blog that lists the 10 latest posts where you can navigate backwards to older posts.

Or do one solve it with an index on e.g. blogpost.publishdate and just skip and limit the result?

MongoDB - paging

What is the difference between &quot;process.stdout.write&quot; and &quot;console.log&quot; in node.js?

EDIT: Using console.log for a variable showed a lot of unreadable characters while using process.stdout.write showed an object.

Why is that?

Difference between &quot;process.stdout.write&quot; and &quot;console.log&quot; in node.js?

I have just installed nodejs on a new EC2 micro instance.

I installed it normally, ./configure -&gt; make -&gt; sudo make install.

**Problem:** When I run &quot;node&quot; under ec2-user, it runs perfectly. When I run &quot;sudo node&quot;, it fails.

I found out that node is in:

    [ec2-user@XXXX ~]$ whereis node
    node: /usr/local/bin/node /usr/local/lib/node

and the current path is

    [ec2-user@XXXX ~]$ echo $PATH
    /usr/local/bin:/bin:/usr/bin:/opt/aws/bin:/home/ec2-user/bin

but, the sudo path is

    [root@ip-10-112-222-32 ~]# echo $PATH
    /usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/opt/aws/bin:/root/bin

then I tried to edit the root PATH to include the paths to node, so &quot;node&quot; runs when I&#39;m logged in as root - but it still won&#39;t work when I log in as ec2-user and run &quot;sudo node&quot;.

I need this to install npm properfly. Any idea on how to include the node path while running &quot;sudo node&quot;?

On EC2: sudo node command not found, but node without sudo is ok

I&#39;d like to check if my module is being included or run directly. How can I do this in node.js?

node.js equivalent of python&#39;s if __name__ == &#39;__main__&#39;

Is it possible to listen for incoming keystrokes in a running nodejs script?
If I use `process.openStdin()` and listen to its `&#39;data&#39;` event then the input is buffered until the next newline, like so:

    // stdin_test.js
    var stdin = process.openStdin();
    stdin.on(&#39;data&#39;, function(chunk) { console.log(&quot;Got chunk: &quot; + chunk); });

Running this, I get:
   
    $ node stdin_test.js
                    &lt;-- type &#39;1&#39;
                    &lt;-- type &#39;2&#39;
                    &lt;-- hit enter
    Got chunk: 12

What I&#39;d like is to see:
  
    $ node stdin_test.js
                    &lt;-- type &#39;1&#39; (without hitting enter yet)
     Got chunk: 1
 
I&#39;m looking for a nodejs equivalent to, e.g., [`getc` in ruby](http://www.ruby-doc.org/docs/ProgrammingRuby/html/ref_c_io.html#IO.getc)

Is this possible?


nodejs how to read keystrokes from stdin

I&#39;ve set up Node.js and Nginx on my server. Now I want to use it, but, before I start there are 2 questions:

1. How should they work together? How should I handle the requests?
2. There are 2 concepts for a Node.js server, which one is better:   

    a. Create a separate HTTP server for each website that needs it. Then load all JavaScript code at the start of the program, so the code is interpreted once.

    b. Create one single Node.js server which handles all Node.js requests. This reads the requested files and evals their contents. So the files are interpreted on each request, but the server logic is much simpler.

It&#39;s not clear for me how to use Node.js correctly.



Content Type	Original Author	Original Content on Stackoverflow
Question	Stephen	View Question on Stackoverflow
Solution 1 - Ubuntu	freedev	View Answer on Stackoverflow
Solution 2 - Ubuntu	Scott Hernandez	View Answer on Stackoverflow
Solution 3 - Ubuntu	Thibaut Barrère	View Answer on Stackoverflow
Solution 4 - Ubuntu	Rick	View Answer on Stackoverflow
Solution 5 - Ubuntu	CodeShane	View Answer on Stackoverflow

How to listen only to localhost on MongoDB

Ubuntu Problem Overview

Ubuntu Solutions

Solution 1 - Ubuntu

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how to use node.js module system on the clientside

Is it possible to program in binary?

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