I made changes in httpd.conf to redirect website to another website; after 15min I removed redirect but until now when client request website they are redirecting.
I'm sure I remove redirect.
we are locating in UAE, UAE has transparent proxy for all Internet connections so I think the problem in proxy cache, How i can confirm it? then can I avoid it ?
also when I put dot "." at the end of link site working without redirect otherwise it's not working.
I'm assuming a corporate proxy cache is what they have set up. I have a client and every time I send them changes to a temporary page I'm hosting for review they can't see it.
They can hit refresh over and over but never see the new updates unless I change the name of the folder its in.
This is very annoying and it only happens with them and one other corporate client i have. They check on multiple computers and it will never refresh and load the new changes. I think this is their network cache that their IT dept. set up.
How can I get around this? I tried an htaccess trick I looked up for expiring files but it didnt work.
These files are on a shared hosting of mine on an Apache server.
I have Apache 2.4.6 on a Windows Server 2008 (windows build from apachelounge). I want to use it as reverse proxy cache with mod_cache_disk.
My configuration is:
Code:
<IfModule cache_module>
<IfModule cache_disk_module>
CacheRoot C:/temp/cache
CacheEnable disk /
CacheDirLevels 2
CacheDirLength 3
[Code] .....
Loading a page with ~150 files (most images and js files) i keep runing into "locked requests" that are not comeing back and block the whole page from finishing loading. The files differ every time.
I see this warnings in my error.log (looks like they are connected to the behauviour above).
Code:
[Tue Nov 19 20:38:10.890013 2013] [cache_disk:warn] [pid 216692:tid 15924] (OS 5)Access is denied. : [client x.x.x.x:58963] AH00699: rename tempfile to file failed: C:/temp/cache/aptmpcBQArf -> C:/temp/cache/H8Cta/9ha4U/Uhhhs/OlQfU/1Q.data,
[Code] .....
I've got a dedicated server running my portal. Now we plan to soon launch broadcasting, where we via a webcam + microphone will broadcast (streaming WMV media) to all our members. Our members will then be able to interact with the speakers via chatting.
Now we are currently undergoing loadtesting, with our current setup, which is:
1. dedicated server+ultrafast connection=>chatting
2. home PC with static IP and 1 MBit upload=>Video+Audio Streaming
So the member requests a page from the dedicated server, which has a chat window and a windows media player. The player will retrieve the video/audio content from the home PC. This is done by the client.
Now is pretty logical to see that there will be limitations in how many connections the home pc will be able to handle.
The question is: How do i make the dedicated server get the content from the home pc (so it only serves one connection) and then get all the clients to get their video content from the dedicated server ?
I've looked into the proxy modules for the apache server, however they (forward/reverse proxy) both passes the connection on to the remote machine and thereby not doing what I want to do.
I use apache with CentOS VPS hosting for my blog. I only host one blog in this VPS account. I have 1.5GB RAM and I have 7, 500 page preview per day. My page loading time is 2-3 seconds (according to the pingdom tool).
I want to know what is the best performance (faster web page loading) W3 Total cache option for VPS hosting blog. Currently I use Disk to enhance for page cache and database cache for disk.
I have a proxy site which is hosted with a proxy host, do i have to use proxy hosting as i have an account with another host i might want to use. The proxy hosting has run out.
View 2 Replies View RelatedI'm using the isapi rewrite module for iis 6 which uses the exact same syntax as mod_rewrite in apache. I'm not very well versed in apache and need getting this to work asap. Basically I have a directory in our website: URL....
I need to forward this to an IP address, for example to this address:100.12.33.45/folder.While keeping the original URL (www.xyz.edu/folder). I'm unsure of the apache syntax for this.
I have moved my domain out of hostgator like a month ago..
[url]
The whois shows my new nameservers and IP
Why is my page being redirected to hostgator suspended page.
My domain is not even registered with them
the domain is nuzil.com
any reviews about that.
the NOCONA and IRWINDALE are old cpu,
i find the main difference of them is L2 cache (1MA2M),
i want to ask what service need more L2 cache?
for example:a lot of db usage? or httpd? or?
I guess I have finally seen the adverse effects of raising the conntrack table max too high.
May 15 09:13:52 cp4 kernel: [6430723.486626] dst cache overflow
May 15 09:13:52 cp4 kernel: [6430723.622616] dst cache overflow
May 15 09:13:56 cp4 kernel: [6430727.562862] dst cache overflow
May 15 09:13:56 cp4 kernel: [6430727.698868] dst cache overflow
May 15 09:13:56 cp4 kernel: [6430727.844221] dst cache overflow
May 15 09:13:56 cp4 kernel: [6430727.991276] dst cache overflow
May 15 09:13:56 cp4 kernel: [6430728.131962] dst cache overflow
I got tons of these during an attack today. I have googled around for a lil while and not have been able to find any useful info on raising this cache level up. Would anyone here know how to do this?
I see no sysctl settings or anything of that nature for it.
I'm running shared hosting and would like to keep the amount kept in cache down so that there is always more memory free... how would i go about doing that?
are these values good?
echo 20 > /proc/sys/vm/dirty_background_ratio
echo 60 > /proc/sys/vm/dirty_ratio
I have reseller account from small web service company.
they are great and better than the famous company.
but I have one problem. I have personal blog, some time I don't see the new comment, also my visitor see the comment before 4 days ago only.
and there is vb forum, some times new member can't login and only you see the old topic, and some times you see everything ok and up to date.
me and all my visitor have the same problem and that can't be from internet service provider because they are from several country.
I had such problem before 4 years and it was because server Cache.
I didn't name the company because they are great and I don't want to blame them before I know certainly what cause the problem.
What tools do you use to check for DNS Cache Poisoning ? Is there any way it can be prevented and is the problem very prevalent?
View 1 Replies View RelatedI seem to have the opposite problem of what most people complain about... I'm using some custom-built PHP scripts, the output of which is not getting cached. I want the output cached, because it doesn't change often.
If it's relevant, I'm using ob_start() to serve up a GZIP-compressed page.
I start off with a header("Cache-Control: maxage=3600, must-revalidate"). Yes, it's first, and yes, it's showing up properly in the browser.
However, requesting the page again returns an HTTP 200, not the 304 I'm expecting. It's pulling down the whole page again. It's not changing in between requests, and I'm simply visiting the URL again, not hitting Refresh. (Although it really shouldn't matter.)
[url]
has an article on mysql query cache.
It notes that in the mysql config file, having
query-cache-type = 1
sets the mysql query cache.
In mysql I note that
SHOW VARIABLES LIKE '%query_cache%';
outputs
+-------------------+---------+
| Variable_name | Value |
+-------------------+---------+
| have_query_cache | YES |
which indicates that cache is set, but...
find . -name "my.cnf"
./usr/local/cpanel/whostmgr/my.cnf
./etc/my.cnf
shows only these
set-variable = max_connections=500
safe-show-database
So where has query cache been set?
At the server level?
If so, am I able to set the query_cache_size and if so, which path?
Anyone have any comments on their mysql optimization on a VPS?
what does this mean? its been flooding /var/log/messages
Jun 28 08:12:50 host named[7649]: client 209.86.63.238#9427: query (cache) 'root.domain.tld/A/IN' denied
Jun 28 08:12:50 host named[7649]: client 209.86.63.230#42462: query (cache) 'root.domain.tld/A/IN' denied
Jun 28 08:12:50 host named[7649]: client 200.23.242.203#37863: query (cache) 'root.domain.tld/A/IN' denied
Jun 28 08:12:50 host named[7649]: client 212.93.151.237#8080: query (cache) 'root.domain.tld/A/IN' denied
Jun 28 08:12:50 host named[7649]: client 212.202.215.18#35119: query (cache) 'root.domain.tld/A/IN' denied
Jun 28 08:12:50 host named[7649]: client 212.93.151.237#40106: query (cache) 'root.domain.tld/A/IN' denied
Jun 28 08:12:50 host named[7649]: client 209.86.63.231#51272: query (cache) 'root.domain.tld/A/IN' denied
root@host# free
total used free shared buffers cached
Mem: 4016936 2598976 1417960 0 138424 1558652
-/+ buffers/cache: 901900 3115036
Swap: 5275640 0 5275640
Eventually, the cache reaches 2600000 and i would like to keep the cache smaller so that the free RAM is always steady around 500k for when a lot of traffic comes through.
is there a way to clear the old cache out faster?
How do I setup a RamDisk or a tmpfs mount? I want to setup cache_dir in memory.
My current settings:
extension="eaccelerator.so"
eaccelerator.shm_size="128"
eaccelerator.cache_dir="/tmp/eac"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="7200"
eaccelerator.shm_prune_period="3600"
eaccelerator.shm_only="1"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
eaccelerator.keys="shm_only"
eaccelerator.sessions="shm_only"
eaccelerator.content="shm_only"
Which would you choose:
Core2Duo E2180, 1MB Cache
P4 3.0Ghz, 2MB Cache
What is your opinioun on the subject?
How could it be done?
We just upgraded our server with 8 brand new seagate cheetah 15k.5's, a battery backup unit, and a 256mb dimm for the raid controller. In the boot process, i noticed an error about caching or something.
After analyzing the dmesg log, i found the error:
sda: asking for cache data failed
sda: assuming drive cache: write through
It seems like the kernel can't get to the raid controllers cache, so it switches to the write through setting.
I've benchmarked the harddisks with the write through, and write back setting. The odd thing is that both settings deliver the same performance.
Normally, write back increases the performance with like 100%... That's why we bought the battery backup unit.
So something is going wrong, but where lays the problem?
Server:
Quote:
8 X seagate cheetah 15k.5, U320, 16mb cache, SCA, 73GB
1 X chenbro backplane, U320, SCA, 2 channels, 8 ports
1 X LSI megaraid 320-2x raid controller, U320, 2 channels, battery pack and 256 upgraded dimm
6 GB DDR PC3200, ECC, CL3
2 X AMD opteron dual cores (4 X 2.0 ghz)
I have Django (python framework) on a server, and I have a little problem. The application is kept in cache by FastCGI
When you make changes to your application you have to restart it. Touching the file doesn't solve my problem. The only solution I have is renaming the .fcgi file always, and if you use an orifinal file name, it actually works like before, prooving it's kept in cache.
What would you do? A cron job to remove these files maybe?
How do I flush the cache on CentOS cache and Buffer or either one.
on top command I see a lot of ram in cache and I want to flush the cache.
How do I do that? any kommands?
how big I should set the cache size for eaccelerator?
Here's the information from the control.php
Caching enabled yes
Optimizer enabled yes
Memory usage 100.00% (16.00MB/ 16.00MB)
Free memory 0.00MB
Cached scripts 148
Removed scripts 0
Cached keys 0
I've got an application (java web ) tha dynamically creats images ( with dynamic url - ...tab&vi=nia&h=24&ds=bottom&fn...) - like thumbnails,icons ect.
The think I'm trying to deal with is to force caching theese images by a browser.
When the application starts the server gets images and shows code 200 ( and this images apppers in web browser cache), but after reloding or simply viewing the images from the cache url the server shows again code 200. I'd like to have code 304 - not modified - like when browser gets an image from cache.
The dynamic url for image is being created only once - when the appication starts, and after that it stays unchanged, but I still can't force use the cached images - like when it is a static url - .../image.jpg.
What is the good value to set query_cache_size. I have set it to 60 M and here
is the status. Is it good? I am not sure how to check this? Can anyone explain?
query_cache_size=60M
mysql> SHOW STATUS LIKE 'Qcache%';
+-------------------------+----------+
| Variable_name | Value |
+-------------------------+----------+
| Qcache_free_blocks | 5 |
| Qcache_free_memory | 62666440 |
| Qcache_hits | 922 |
| Qcache_inserts | 381 |
| Qcache_lowmem_prunes | 0 |
| Qcache_not_cached | 565 |
| Qcache_queries_in_cache | 182 |
| Qcache_total_blocks | 400 |
+-------------------------+----------+
8 rows in set (0.00 sec)
I am currently wanting to add a cache engine that eases the apache server for my php scripts. I just wanted to make sure there weren't cons; bugs with certain pages that need to be reloaded very quickly? Has any of you already experienced such bugs with these progs? Which cache-accelerator would you suggest for php-mysql apache?
View 3 Replies View RelatedWhen is a good time to add more ram?
Since I got my server its ran with 1gb ram and has kept a free of at least 400mb since that time.
Now withing a few hours all of it is being kept in buffer/cache as the past week an showing about 15mb free (not counting buffer/cache) and has started in on the disk swap of about 400Kb.
So should I upgrade to 2gb now or wait till it goes deeper into the swap, and if so how far into the swap before you'd upgrade?
Could someone please help me with some information on how I can troubleshoot this issue?
[warn-phpd] mmap cache can't open /home/sitedir/)
It's happening on all the directories ie: sites on the server. Switching from phpsuexe back to running php dso fixes the issue, but how can I run phpsuexec and fix this problem? Any tips would be very much appreciated.
I'm sure all of you who use eaccelerator know how big the cache can get and that it needs emptied manually. Well at least to my knowledge it does, the only thing I have seen that you can configure is the shm pruning. If anyone does know such a feature with eaccelerator please share. But I also notice a performance decrease and a few php errors mostly related to memory allocations here and there.
Anyway I was piddling around and came up with a command to disable eaccelerator from php.ini, delete the cache folder and then enable it back. I figured this would be good as a daily cron. I would like some input if anyone knows any better ways.
So I wanted to share this in case someone else here has the same problems with eaccelerator cache folder getting huge. If anyone knows a way to make this better or shorter please reply with solution.
Of course this will vary depending on where your php.ini is and where your eaccelerator cache is. Just replace those values with yours. I'm sure there is also a way to use similar commands to find and input these values, again if anyone knows please share.
Code:
find /usr/local/lib -name 'php.ini' | xargs perl -pi -e 's/extension="eaccelerator.so"/;extension="eaccelerator.so"/g' ; rm -rf /usr/lib/php/eacc ; mkdir /usr/lib/php/eacc ; chmod 4777 /usr/lib/php/eacc ; find /usr/local/lib -name 'php.ini' | xargs perl -pi -e 's/;extension="eaccelerator.so"/extension="eaccelerator.so"/g'
I have a virtuozzo vps account 64-bit centos running whm/cpanel.
I've been having an issue with high load average at times while very little cpu is being used and there is plenty of ram free, and in looking into this, I've run into another thing that seems very odd to me:
free
total used free shared buffers cached
Mem: 786432 179944 606488 0 0 0
-/+ buffers/cache: 179944 606488
top - 22:29:52 up 15:30, 1 user, load average: 1.23, 1.55, 1.12
Tasks: 74 total, 1 running, 72 sleeping, 0 stopped, 1 zombie
Cpu(s): 0.0%us, 0.1%sy, 0.0%ni, 88.8%id, 11.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 786432k total, 174784k used, 611648k free, 0k buffers
Swap: 0k total, 0k used, 0k free, 0k cached
uname -r
2.6.18-028stab060.8
No memory being used for buffers or cache.
why no ram is being used to buffer/cache slower disk io?
