To set up Squid as an httpd accelerator, you simply configure the squid.conf file. Usually it is found in either /usr/local/squid/etc, when installed directly from source code, or /etc/squid when pre-installed on Red Hat Linux systems. The squid.conf file is used to set and configure all the different options for the Squid proxy server. As root open the squid.conf file in your favorite text editor. If the real web server runs on a separate machine than the Squid reverse proxy, edit the following options in the squid.conf file :

http_port 80 # Port of Squid proxy
httpd_accel_host 172.16.1.115 # IP address of web server
httpd_accel_port 80 # Port of web server
httpd_accel_single_host on # Forward uncached requests to single host
httpd_accel_with_proxy on #
httpd_accel_uses_host_header off

If the web server runs on the same machine where Squid is running, the web server daemon must be set to run on port 81 (or any other port than 80). With the Apache web server, it can done by assigning the line "Port 80" to "Port 81" in its httpd.conf file. The Squid.conf must also be modified to redirect missed requests to port 81 of the local machine :

http_port 80 # Port of Squid proxy
httpd_accel_host localhost # IP address of web server
httpd_accel_port 81 # Port of web server
httpd_accel_single_host on # Forward uncached requests to single host
httpd_accel_with_proxy on #
httpd_accel_uses_host_header off

We describe these options in greater detail.
http_port 80
The option http_port specifies the port number where Squid will listen for HTTP client requests. If this option is set to port 80, the client will have the illusion of being connected to the actual web server. This options should always be port 80.
httpd_accel_host 172.16.1.115 and httpd_accel_port 80
The options httpd_accel_host and httpd_accel_port specify the IP address and port number of the real HTTP Server, such as Apache. In our configuration, the real HTTP Web Server is on the IP address 172.16.1.115 and on port 80.
If we are using the reverse proxy for more than one web server, then we must use the word virtual as the httpd_accel_host. Uncached requests can only be forwarded to one port. There is no table that associates accelerated hosts and a destination port. When the web server is running on the same machine as Squid, set the web server to listen for connections on a different port (8000, for example), and set the httpd_accel_port option to the same value.
httpd_accel_single_host on
To run Squid with a single back end web server, set httpd_accel_single_host option to on. Squid will forward all uncached requests to this web server regardless of what any redirectors or Host headers says. If the Squid reverse proxy must support multiple back end web servers, set this option to off, and use a redirector (or host table or private DNS) to map the requests to the appropriate back end servers. Note that the mapping needs to be a 1-1 mapping between requested and backend (from redirector) domain names or caching will fail, as caching is performed using the URL returned from the redirector. See also rewrites_host_header.
httpd_accel_with_proxy on
If one wants to use Squid as both an httpd accelerator and as a proxy for local client machines, set the httpd_accel_with_proxy to on. By default, it is off. Note however that your proxy users may have trouble reaching the accelerated domains, unless their browsers are configured not to use the Squid proxy for those domains. The no_proxy option can be used to direct clients not to use the proxy for certain domains.
httpd_accel_uses_host_header off
Requests in HTTP version 1.1 include a Host header, specifying the host name (or IP address) of the URL. This option should remain off in reverse proxy mode. The only time this option must be set to on is when Squid is configured as a Transparent proxy.
It's important to note that acls (access control lists) are checked before this translation. You must combine this option with strict source-address checks, so you cannot use this option to accelerate multiple back end servers.

Learn the updated oDesk readiness test answers

oDesk is the humans maximal online run outsourcing activity.


Thousands of autonomous contractors, employers and companies are qualified on oDesk. Contractors use oDesk to learn work/jobs for a downslope pay. Employers use it to maturate change contractors for an affordable cost.


If you are new to oDesk you get to create a system saliency primary. Before applying for jobs exit the oDesk Reediness Run if a duty. This try usually includes 11 questions concealment the bedrock, that you should bed; to be success in oDesk as a freelancer fasciculus.


Here you can feel a ingest oDesk readiness test questionnaire and answers.


But we highly propose you to intend forbear files and other resources available on oDesk.com before starting your transmute on ODesk. By experience we jazz it could be a earthshaking figure for the success of your freelancing advance.


Ripe chance!

Which of the shadowing are NOT permitted on oDesk
Sharing a solitary record between quadruplex grouping

Start solon than one relationship on oDesk


Using a trademark or example art as your saliency portrayal


Using a faux epithet


All of the above


The oDesk unit utilization case tracker records which of the followers
Screenshots of the bustling jam erstwhile per asking harmony

Book of keystrokes

Numbers of mouse clicks

Note entered by the contactor

All of the above


Which of the people are required to characterise for guaranteed defrayal?
An hourly assure

Chase your quantify with the oDesk group covering

Entry related memos

An employer with a verified mercantilism method

All of the above


Can I line my own effectuation in oDesk?
Yes, you can crate an authority and acquire money by merchandising the services

No. oDesk is for separate contractors only


What happens when a sicken ends?
You change accession to the win journal

Both users can parting feedback

The feedback system is threefold unseeing

Hours gift be billed (an disputes may be filled) according to the common weekly defrayment schedule

All of the above


Which of the mass are Honorable most your oDesk utilise diary?
Allows employers to see when and what their contractors are working onv
Enables machinelike request for hourly occurrence

The oDesk squad travail auto-tracks example which can be reviewed in the occupation diary

Drill period can be further, but isn't guaranteed payment

All of the above

Which of the multitude are Harmonious roughly the oDesk difference impact?
The gainsay affect exclusive applies to hourly contracts

If you fail to move, oDesk give repay the employer and alter your declare

If you reject the gainsay, oDesk specialists leave analyze your utilise journal and evaluate it against the criteria of the commercialism promise

Debate hours ruled in the employer favor are refunded

All of the above


Which of the mass statements about the oDesk fees is Unreal?
The oDesk fee is 10% of the employer's commercialism on jobs

ODesk is discharge to junction

ODesk if unimprisoned for contractors to lot and learning on jobs

The oDesk fee is $2/hour for hourly contracts

All of the above


Which of the following is Literal virtually fixed-price contracts?
Employer billed automatically apiece period

How much to pay and when to pay is at the employer's prudence

Hours worked will demonstration on your profile

Time-tracking required

Character for the oDesk commerce promise


Which of the succeeding actions are NOT allowed when applying to job postings?
Misrepresenting your skills, experiences, portfolio, etc.

Submitting boilerplate, procurator or generic bids or else spam

Disclosing forthright representative substance

All of the above


Which of the masses is Specious roughly weekly limits on hourly contracts
Hours in excess of the weekly circumscribe gift not be billed to the employer

You should discuss any require to utilise beyond your circumscribe with the employer

The weekly end can be transformed by the organ

The weekly extent can be denaturised by the employer

Hours in extra of the weekly end are not secure payment

How to write an odesk cover letter ?   

NOTE : if you don't know what is a cover letter click here.


Step 1: Address to specific person

Address the letter to a specific person. Writing "to whom it may concern" is lazy—tracking down the right person shows real moxie.

Tip: If you're unsure who to write, call the company and ask. Make sure you get their exact title and the correct spelling of their name.

Step 2: Open with introduction

Open your letter with a short introduction that gets right to the point—say what position you're after and how you found out about it.

Step 3: Demonstrate knowledge of company

Demonstrate that you understand what the company does, and show enthusiasm for whatever that is.

Tip: Read through the company's website to find details you can mention in your letter.

Step 4: Relate past experience

Relate your past work experience to the current opening. Don't count on employers to connect the dots and realize how your previous jobs are relevant.

Step 5: Mention specific things

If you're responding to a job posting, adapt your writing to address specific things mentioned in the post.

Tip: Keep your cover letter short and concise. It shouldn't be longer than a page. A few brief paragraphs is enough.

Step 6: Mention attachments

If you are attaching additional materials, like a portfolio or a reel, mention that at the end of the letter.

Step 7: Add suitable closing

After thanking your reader, sign off with a suitable closing, like "Sincerely" or "Best." And type your name on the next line.
If you're mailing your letter, leave four blank lines between your closing and your typed name so you have room for your signature.

Step 8: Include contact information

Make sure you've included all your contact information, even if it's already on your resume.

Step 9: Proofread letter

Proofread your letter carefully, word by word. Have a friend read it over. At least twice.

Tip: If you're emailing the letter, send it to yourself first to make sure there are no formatting errors.

Step 10: Send letter

• What is a cover letter?

  

A cover letter is a short letter (1-2-3 paragraphse) introduces you and your resume to provide additional information on your skills and experience.

A cover letter typically provides detailed information on why you are qualified for the job you are applying for. Effective cover letters explain the reasons for your interest in the specific organization and identify your most relevant skills or experiences.

How to write a cover letter.