What is 401 Error?

Hema37 Level 1

March 16, 2016, 7:52 am

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What is 401 Error?

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exsunwell

I think it's failed authorization from the client side.
I may be wrong, correct me.

10 years ago

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HTTP Error 401 - Unauthorized: Access is denied due to invalid credentials. This behavior occurs if the following conditions are true: The Web site that you try to view uses Integrated Windows authentication. The application pool for the Web site recycles during the authentication process.

10 years ago

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chetaseo

nice one zain, thank you for that your wonderful and resourceful answer to it. i have gained from your post. well done.

10 years ago

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joomdev

The 401 Unauthorized error is an HTTP status code that means the page you were trying to access can not be loaded until you first log on with a valid user ID and password.

If you have just logged on and received the 401 Unauthorized error, it means that the credentials you entered were invalid for some reason.

10 years ago

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wallet

Hi Hema, a 401 Error means: Unauthorized: Access is denied due to invalid credentials. This usually happens when you try to visit a site that uses Integrated Windows authentication. To fix this error or at least to receive this error less you should configure application pool recycling. I am sure this will help you in your problem!

9 years ago

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SEOClerks

What is 401 Error?

What is 401 Error?

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exsunwell

jeffmccoy

chetaseo

joomdev

wallet

Invalid SQL

Expensive SQL

Suspicious SQL

Match	Count	SQL	Script
SELECT * FROM `questions` as q JOIN categories_faq as c ON q.catid=c.CATID WHERE (q.status=1 OR (q.status=2 AND userid='') ) AND q.quesid='14826'	1	SELECT q.*, c.seo as CatSEO, c.name as CatName, c.parentid FROM `questions` as q JOIN categories_faq as c ON q.catid=c.CATID WHERE (q.status=1 OR (q.status=2 AND userid='') ) AND q.quesid='14826'	/opt/clerks-staging/docroot/viewfaq.php 496 () ()
SELECT * FROM seoclerks.members WHERE USERID='452836'	1	SELECT * FROM seoclerks.members WHERE USERID='452836'	/opt/clerks-staging/docroot/include/functions/includes/member.php 445 GetAllUserDetails() ()
SELECT * FROM categories_faq WHERE CATID='30'	1	SELECT CATID, seo, name, metatitle, h2header, metakeywords, metadescription, metaheader, parentid, image_name FROM categories_faq WHERE CATID='30'	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() GetCategorySeoFromType()
SELECT * FROM seoclerks.members WHERE USERID=452836	1	SELECT googleplus_profile FROM seoclerks.members WHERE USERID=452836	/opt/clerks-staging/docroot/include/functions/main.php 16914 GetGooglePlusProfileFromId() ()
SELECT * FROM ratings_faq as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=14826 LIMIT 5	1	SELECT m.username FROM ratings_faq as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=14826 LIMIT 5	/opt/clerks-staging/docroot/include/functions/main.php 17159 GetVoters() ()
SELECT * FROM answers a, seoclerks.members b WHERE a.quesid='14826' AND a.userid=b.USERID and b.status='1' AND a.status=1 ORDER BY a.combined_votes DESC, a.date_answered asc	1	SELECT a.answer, a.USERID, a.upvotes, a.downvotes, a.ansid, a.parentid, a.combined_votes, a.date_answered, b.username, b.userlevel, b.profilepicture FROM answers a, seoclerks.members b WHERE a.quesid='14826' AND a.userid=b.USERID and b.status='1' AND a.status=1 ORDER BY a.combined_votes DESC, a.date_answered asc	/opt/clerks-staging/docroot/viewfaq.php 1245 () ()
SELECT * FROM ratings_faqanswers as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=78362 LIMIT 5	1	SELECT m.username FROM ratings_faqanswers as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=78362 LIMIT 5	/opt/clerks-staging/docroot/include/functions/main.php 17159 GetVoters() ()
SELECT * FROM ratings_faqanswers as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=78363 LIMIT 5	1	SELECT m.username FROM ratings_faqanswers as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=78363 LIMIT 5	/opt/clerks-staging/docroot/include/functions/main.php 17159 GetVoters() ()
SELECT * FROM ratings_faqanswers as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=78364 LIMIT 5	1	SELECT m.username FROM ratings_faqanswers as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=78364 LIMIT 5	/opt/clerks-staging/docroot/include/functions/main.php 17159 GetVoters() ()
SELECT * FROM ratings_faqanswers as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=78366 LIMIT 5	1	SELECT m.username FROM ratings_faqanswers as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=78366 LIMIT 5	/opt/clerks-staging/docroot/include/functions/main.php 17159 GetVoters() ()
SELECT * FROM ratings_faqanswers as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=126035 LIMIT 5	1	SELECT m.username FROM ratings_faqanswers as r, seoclerks.members as m WHERE r.USERID=m.USERID AND r.upvote=1 AND r.PID=126035 LIMIT 5	/opt/clerks-staging/docroot/include/functions/main.php 17159 GetVoters() ()
UPDATE questions SET total_views = total_views + 1 WHERE quesid='14826'	1	UPDATE questions SET total_views = total_views + 1 WHERE quesid='14826'	/opt/clerks-staging/docroot/include/functions/main.php 1765 update_Faqviewcount() ()
SELECT * FROM questions WHERE quesid!='14826' AND status='1' AND (question like '% 401 Error?%' OR question like '%Error?%') -- ORDER BY RAND() LIMIT 15	1	SELECT quesid, question, seo, userid FROM questions WHERE quesid!='14826' AND status='1' AND (question like '% 401 Error?%' OR question like '%Error?%') -- ORDER BY RAND() LIMIT 15	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() ()
SELECT * FROM seoclerks.members WHERE USERID='63192' limit 1	1	SELECT profilepicture FROM seoclerks.members WHERE USERID='63192' limit 1	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() insert_get_member_profilepicture()
SELECT * FROM seoclerks.members WHERE USERID='86946' limit 1	1	SELECT profilepicture FROM seoclerks.members WHERE USERID='86946' limit 1	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() insert_get_member_profilepicture()
SELECT * FROM seoclerks.members WHERE USERID='3772' limit 1	1	SELECT profilepicture FROM seoclerks.members WHERE USERID='3772' limit 1	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() insert_get_member_profilepicture()
SELECT * FROM seoclerks.members WHERE USERID='218548' limit 1	1	SELECT profilepicture FROM seoclerks.members WHERE USERID='218548' limit 1	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() insert_get_member_profilepicture()
SELECT * FROM seoclerks.members WHERE USERID='601543' limit 1	1	SELECT profilepicture FROM seoclerks.members WHERE USERID='601543' limit 1	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() insert_get_member_profilepicture()
SELECT * FROM members_ledger WHERE script='/opt/clerks-staging/docroot/viewfaq.php' AND querystring LIKE '%id=14826%' AND added>=UNIX_TIMESTAMP(NOW())-1200 GROUP BY USERID	1	SELECT USERID, username FROM members_ledger WHERE script='/opt/clerks-staging/docroot/viewfaq.php' AND querystring LIKE '%id=14826%' AND added>=UNIX_TIMESTAMP(NOW())-1200 GROUP BY USERID	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() ()
SELECT * FROM categories	1	SELECT * FROM categories	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() parseRedundantQueriesCache()
select * from categories_software order by name asc	1	select * from categories_software order by name asc	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() insert_GetSoftwareCategories()
select * from categories_wanttobuy order by name asc	1	select * from categories_wanttobuy order by name asc	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() insert_get_wantcategories()
select * from categories_wanttotrade order by name asc	1	select * from categories_wanttotrade order by name asc	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() insert_get_tradecategories()
SELECT * FROM seoclerks.members WHERE USERID='453211.png'	1	SELECT profilepicture FROM seoclerks.members WHERE USERID='453211.png'	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() getUserProfileImage()
SELECT * FROM seoclerks.members WHERE USERID='456333.jpg'	1	SELECT profilepicture FROM seoclerks.members WHERE USERID='456333.jpg'	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() getUserProfileImage()
SELECT * FROM seoclerks.members WHERE USERID='198791.jpg'	1	SELECT profilepicture FROM seoclerks.members WHERE USERID='198791.jpg'	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() getUserProfileImage()
SELECT * FROM seoclerks.members WHERE USERID='479481.jpg'	1	SELECT profilepicture FROM seoclerks.members WHERE USERID='479481.jpg'	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() getUserProfileImage()
SELECT * FROM seoclerks.members WHERE USERID='598707.jpg'	1	SELECT profilepicture FROM seoclerks.members WHERE USERID='598707.jpg'	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() getUserProfileImage()
select * from categories_faq order by name asc	1	select * from categories_faq order by name asc	/opt/clerks-staging/docroot/libraries/adodb5/adodb.inc.php 1899 CacheExecute() insert_GetFaqCategories()