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500 error but I have no idea how to fix them

https://forum.vestacp.com/viewtopic.php?f=11&t=13745

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500 error but I have no idea how to fix them

Posted: Fri Jan 27, 2017 2:45 am
by baijianpeng
Recently I re-installed my whole VPS server, use Ubuntu server 16.04.1 as the OS, and then installed VestaCP 0.98-17 by the default installing method, and then enabled SSL and implemented Let's Encrypt certificates. Everything seems OK until there appears "500 — Internal Sever Error" now and then without any other error message, so I have no clue to solve this.

I checked those log files in /var/log/nginx, they are clean. Then I checked the log files in /var/log/apache2, I found following records in log files:

For the file joomlagate.com.error.log :
# tail joomlagate.com.error.log
2017/01/27 09:14:01 [crit] 31151#31151: *632969 SSL_do_handshake() failed (SSL: error:14094085:SSL routines:ssl3_read_bytes:ccs received early) while SSL handshaking, client: 64.41.200.104, server: 120.27.137.71:443
2017/01/27 09:14:02 [crit] 31151#31151: *632972 SSL_do_handshake() failed (SSL: error:14094085:SSL routines:ssl3_read_bytes:ccs received early) while SSL handshaking, client: 64.41.200.104, server: 120.27.137.71:443
2017/01/27 09:21:57 [crit] 31151#31151: *633675 SSL_do_handshake() failed (SSL: error:14094085:SSL routines:ssl3_read_bytes:ccs received early) while SSL handshaking, client: 64.41.200.104, server: 120.27.137.71:443
2017/01/27 09:21:58 [crit] 31151#31151: *633676 SSL_do_handshake() failed (SSL: error:14094085:SSL routines:ssl3_read_bytes:ccs received early) while SSL handshaking, client: 64.41.200.104, server: 120.27.137.71:443
2017/01/27 09:45:32 [crit] 31151#31151: *634817 SSL_do_handshake() failed (SSL: error:1414F178:SSL routines:tls1_set_server_sigalgs:no shared sigature algorithms error:1408A0E2:SSL routines:ssl3_get_client_hello:clienthello tlsext) while SSL handshaking, client: 207.244.75.231, server: 120.27.137.71:443
2017/01/27 10:16:12 [error] 31151#31151: *636509 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 42.89.18.131, server: joomlagate.com, request: "POST /?option=com_komento HTTP/2.0", upstream: "https://120.27.137.71:8443/?option=com_komento", host: "www.joomlagate.com", referrer: "https://www.joomlagate.com/"
2017/01/27 10:16:13 [error] 31151#31151: *636509 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 42.89.18.131, server: joomlagate.com, request: "POST /?option=com_komento HTTP/2.0", upstream: "https://120.27.137.71:8443/?option=com_komento", host: "www.joomlagate.com", referrer: "https://www.joomlagate.com/"
2017/01/27 10:16:42 [error] 31151#31151: *636509 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 42.89.18.131, server: joomlagate.com, request: "POST /?option=com_komento HTTP/2.0", upstream: "https://120.27.137.71:8443/?option=com_komento", host: "www.joomlagate.com", referrer: "https://www.joomlagate.com/"
2017/01/27 10:16:53 [error] 31151#31151: *636509 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 42.89.18.131, server: joomlagate.com, request: "GET /index.php?option=com_remository&Itemid=517&func=startdown&id=338 HTTP/2.0", upstream: "https://120.27.137.71:8443/index.php?op ... own&id=338", host: "www.joomlagate.com", referrer: "https://www.joomlagate.com/"
[Fri Jan 27 10:17:25.809558 2017] [core:error] [pid 5659] [client 120.27.137.71:45596] AH00037: Symbolic link not allowed or link target not accessible: /home/bjpla/web/joomlagate.com/public_html/images/multithumb_thumbs
For the file "joomlagate.com.log":
# tail joomlagate.com.log
123.125.71.43 - - [27/Jan/2017:10:21:39 +0800] "GET /index.php?option=com_remository&Itemid=632&func=fileinfo&id=1524 HTTP/1.0" 200 65662 "-" "Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)"
203.208.60.199 - - [27/Jan/2017:10:21:40 +0800] "GET /media/plg_jchoptimize/assets/gz/1/0/d2b7b823e563cabdac6077b370be1279.js HTTP/1.0" 200 178685 "https://www.joomlagate.com/" "Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.96 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
58.241.30.188 - - [27/Jan/2017:10:21:58 +0800] "GET /images/logo.png HTTP/1.1" 200 2038 "-" "ChinaCache"
79.6.209.185 - - [27/Jan/2017:10:22:00 +0800] "POST /?option=com_komento HTTP/1.0" 200 591 "https://www.joomlagate.com/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"
203.208.60.198 - - [27/Jan/2017:10:22:00 +0800] "GET /index.php?option=com_kunena&view=topic&Itemid=154&catid=59&id=62286 HTTP/1.0" 200 21344 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
61.163.164.236 - - [27/Jan/2017:10:22:02 +0800] "GET /index.php?option=com_ajax&format=json HTTP/1.0" 200 801 "https://www.joomlagate.com/" "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.22 Safari/537.36 SE 2.X MetaSr 1.0"
146.227.159.60 - - [27/Jan/2017:10:22:05 +0800] "POST /?option=com_komento HTTP/1.0" 200 591 "https://www.joomlagate.com/" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"
61.163.164.236 - - [27/Jan/2017:10:22:08 +0800] "GET /index.php?option=com_ajax&format=json HTTP/1.0" 200 801 "https://www.joomlagate.com/" "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.22 Safari/537.36 SE 2.X MetaSr 1.0"
203.208.60.202 - - [27/Jan/2017:10:22:09 +0800] "GET /images/multithumb_thumbs/b_600_0_16777215_00_images_stories_article_joomla25-tutorials_Komento-settings-joomla-article.png HTTP/1.0" 404 731 "-" "Googlebot-Image/1.0"
203.208.60.202 - - [27/Jan/2017:10:22:11 +0800] "GET /index.php?option=com_kunena&view=category&Itemid=154&catid=35&id=27169&limitstart=4500 HTTP/1.0" 200 25549 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
I don't know how to fix this. Hope someone here will help me to solve this problem.

Thank you.

Re: 500 error but I have no idea how to fix them

Posted: Sun Jan 29, 2017 6:41 pm
by vikhyat
Is there any htaccess file in the root directory of the website? delete it. And did you make any changes to php.ini?

Re: 500 error but I have no idea how to fix them

Posted: Mon Jan 30, 2017 2:53 am
by baijianpeng
Yes, there is a htaccess file named ".htaccess" which is the must of Joomla. Why should I delete it?

I had modified php.ini only to change the settings for "error_reporting" and "max_execution_time" and similar time limits.

Re: 500 error but I have no idea how to fix them

Posted: Mon Feb 20, 2017 9:06 am
by vikhyat
There might be some codes clashing and creating the problem. let me know if the problem still happens even after deleting .htaccess

Re: 500 error but I have no idea how to fix them

Posted: Mon Feb 20, 2017 9:07 am
by vikhyat
and can you post your php.ini file?

Re: 500 error but I have no idea how to fix them

Posted: Tue Feb 21, 2017 2:13 am
by baijianpeng
I had changed some value in Nginx configuration ( I forgot which ones, just followed forum posts), now my website seldom shows 500 error.

But when I check the error log, I see following records:

Code: Select all

root@mail:/var/log/apache2/domains# tail joomlagate.com.error.log

2017/02/20 08:04:42 [error] 988#988: *304364 upstream prematurely closed connection while reading response header from upstream, client: 203.208.60.200, server: joomlagate.com, request: "GET /media/plg_jchoptimize/assets/gz/1/0/391b90ff2ad5386a5f90d4f7dbca42ab.js HTTP/1.1", upstream: "https://120.27.137.71:8443/media/plg_jchoptimize/assets/gz/1/0/391b90ff2ad5386a5f90d4f7dbca42ab.js", host: "www.joomlagate.com", referrer: "https://www.joomlagate.com/"

2017/02/20 08:32:07 [error] 988#988: *305142 upstream prematurely closed connection while reading response header from upstream, client: 62.210.215.109, server: joomlagate.com, request: "GET /download/free-joomla-templates/site-templates/rss/ HTTP/1.1", upstream: "http://120.27.137.71:8080/download/free-joomla-templates/site-templates/rss/", host: "www.joomlagate.com"

2017/02/20 08:32:08 [error] 988#988: *305144 upstream prematurely closed connection while reading response header from upstream, client: 106.120.173.159, server: joomlagate.com, request: "GET /index.php?option=com_kunena&view=topic&catid=35&id=24213&Itemid=154 HTTP/1.1", upstream: "https://120.27.137.71:8443/index.php?option=com_kunena&view=topic&catid=35&id=24213&Itemid=154", host: "www.joomlagate.com"
You can see that each record has a "upstream prematurely closed connection" description.

Why this happened? How to fix this?

Thank you.

Re: 500 error but I have no idea how to fix them

Posted: Tue Feb 21, 2017 6:14 am
by mehargags
Error 500 is when Nginx (running in Rev. Proxy) doesn't receive anything from underlying Apache.
So either you are running Apache on a port other than 8080 or in your Nginx conf you changed the proxy port 8080 to something else.

Rebuild web should fix this for you.
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