I am running a VB forum using lighttpd and ranomly one of PHP proccess is using about 80 90 % of memory ! and i should kill it manualy
i want to know how to find reason ?
Config :
Centos 4.4 32 Bit
Kernel : 2.6.9-42.0.3.EL
Lighttpd 1.3.14
PHP 4.4.6 FastCGI
xCache 1.2.0
my website is www.breatheheavy.com. It currently goes down at least once or twice a day. My host says it is due to a "memory leak with a php script."
I am unable to search for what script may be causing the problem, and am not even sure if it has to do with an SQL error either. What I am suspecting is the XMB script (www.breatheheavy.com/exhale) or maybe even the picture gallery that is hosted on the same server (www.britneyres.com).
I am using Apache now on my VPSes but i want to try it again with lighthttpd as it will use less resources, but the only problem is that lighthttpd is taking up lots of memory and i've read about a memory leak.
View 14 Replies View RelatedI have a Linux server in which i have two NIC's one is for the LAN and other is for the Internet
[root@nebula etc]# ifconfig
eth0 inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
eth1 inet addr:192.168.1.102 Bcast:192.168.1.255 Mask:255.255.255.0
How can i test security between the Internet Nic and the LAN Nic to be sure no security leaks exist.
I can only access the server remotely no GUI but can install packages.
I have some websites running on my LINUX server now.
Not all of them are running stable commercial scripts or cgi.
In fact, our server had some records down before by some package scripts.
I only know TOP to know the current server status.
But I can not know which PID is making CPU usage high, or which website.
I think if I can check the exact site or cgi causing heavy loading. Perhaps it helps us to make our server up.
Is there a way or LINUX command to find out which PID is causing heavy loading?
For past one week, my wordpress based blog is just dead, becasue of heavy trackback/pingback spamming(500 a minute). I've tried various plugins, but to no avail.
In addition to stop spammers before generating PHP load, I've tried all possible HTACCESS rules, but to no avail. I truly sure, I've done something wrong.
May I request the experts here to advice on how to stop this ongoing spamming?
My website (Large Discussion Forums Site) is under a heavy DDoS attack since 3 weeks. My first host could not handle such an attack so I moved to another who claimed to have a firewall that can handle the attack, but still, the site is down.
Anyone has a good suggestion to get the site up and handle the attack? Any particular hosts that can help me?
(The Forum has its own server and does not use Apache).
on my top process am having this one as shown in the attachement image
its consuming time+ of 746:21:95
on the Process Manager that mysqld process is using the command
/usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/host.theplanet.host.pid --skip-external-locking
is that process normal? and what is cousing it? should i kill it?
I have a Windows Server 2003 Enterprise (32 bits) running IIS 6.0, with ASP.Net 1.1.4322. Basically it's an application and image server, that has a large amount of concurrent accesses.
Around 800 users simultaneous access simulteneously and ASP.NET app, that will request some date from an MS-SQL Server database and point the browser to image file (all at once), every few seconds (it's a live webcast applications). The server is quite robust, with 500 GB in a RAID-5, 4 GB RAM, Dual Opteron Processor.
When the users access it, the machine memory and CPU usage a low. Also it has plenty of bandwidth, since it's directly tied to a Gigabit port on the datacenter. I kept an eye on all paramenters and there is no imporant bottleneck on the hardware side.
Here is my problem: after some "images" are sent, with 800 users, the users start getting a 503 error, and can no longer access the images.
On IIS HTTPErr Logs, I found these errors to be "Timer_ConnectionIdle". I believe it has something to do with the way the Application Pool is handling all those concurrent connections. No references to it are made on Windows Logs.
I've already tried tweaking all those paramenters on the Application Pool, but no results. For example, I tried increasing the Request Queue Limit value, but that doesn't seem to make any difference.
Also, I inserted "MaxUserPort=65534" on TCP configurations on regedit. Rebooted. Also, tried turning off keep-alive and decreasing connection timeout, then a restart of the w3svc (see [url]for the explanation about this). Tried changing each parameter individually and tested. No big difference after each modification.
Has anyone ever seen this? Is there a way to get this solved? Again, this address [url] has a description of what seems to be my problem... but I didn't manage to get this solved.
I'm currently considering to enter the VPS market
I have recently acquired a nice box (2x Dual Core Opteron 275 2.2 GHz, 16 GB RAM, 16x500 GB SATA @ RAID5/6) but I'm unsure if it isn't smarter to buy smaller machines (like X2 5600+, 4 GB RAM, 2x400 GB HDD) and put like 15-20 customers on it.
Yes, I know that the hard drives are more than oversized for VPS hosting
The Opteron server will have a very, very nice I/O performance so that customers are going to have a good feeling while working on it. To refinance the costs it would of course be neccessary to put not less than 125 VPS on one box, so I can imagine that there'll be a bottle neck somewhere (CPU power I'd guess?).
What is your opinion? Big boxes with high performance and loads of customers, or small boxes with not-so-many VPS?
I run a heavy site, and httpd always failing...
I have a server with these specs:
Q6600
8GB RAM
500 GB SATA HD
Cpanel/WHM
I run a filehosting site actually and there are alot of people downloading at the same time which i think the server goes down and then httpd restarts itself and all the people downloading the files, their files get currupted.
How can i make it so it stays stable?
One of my Cpanel servers is showing heavy data transfer this month. In 6 days, it crossed 600 GB data transfer which is equal to what it did last month. Also, all the websites collectively have only consumed around 60 GB data transfer in 6 days. How do I find out what exactly is causing heavy data transfer?
View 14 Replies View RelatedAre there any hosting companies that use an Enterprise strength SPAM solution such as IronPort?
We have 3-4 business websites and spam, especially within the last 6 months, has become a tremendous problem. At least 100 spam emails a day are being delivered.
Spam filters do not solve the problem - they simply put some percentage of spam in a folder, often genuine emails, and we still have to go through it manually.
Do not mind paying a premium for the hosting. Any hosts that offer HEAVY DUTY spam protection?
I have 2 identical Fedora8 boxes with Apache 2.2.8, MySQL 5.0.45 and PhP 5.2.4. I use one as the Web+DB server (say box A), and the other (box B) just as the Web server connecting to the DB server on box A. I use this 2 machine configuration to test a LAMP based-Web application. I have a client program on other machines that can emulate a massive web workload to these 2 servers; it can emulate hundreds to thousands of users using the application simultaneously.
Before running the test, the connection to the DB server from both boxes seem fine. Using the mysql client program on either box A or B trying to connect to the DB, the connection goes through instantly. In the /etc/my.cnf file, I have max_connections=4096 and max_user_connections=4096. Note that the web app uses one single db user to connect to the db. To allow remote connection, I inserted one record into the user table of the mysql db whose the host field's value is '%' (allow connection from all remote hosts).
After running the test (which I found out that many requests sent to box B failed), mysql client program on box A is still able to connect to the db instantly; but the one on box B has a problem: it takes extremely long (5 - 10 minutes or even more) to establish the connection, it doesn't time out, just takes that long. I believe that's the cause for the failure of requests to box B.
We are facing a very problematic situation since last several months due to accessive bandwith usage. But we are sure this is only local traffic.
We have 2 Servers with our hosting provider
Server A - this is a VPS
all our webfiles/domains/dns/nameservers reside on this server
Server B - this is a dedicated server
contains only databases
(we are actively running vbulletin based forums on this servers)
Since last several months we are facing huge bandwith increase since we have transferred only our databases to Server B. (earlier database + everything was on Server A) We never ever consumed even 50% of the entire allocated bandwith in past when we were on Server A.
But only after moving the database from Server A to Server B we have found this tremendous increase,
Can we do something about same ? as both the servers belong to same hosting provider.
We are not sure but expect that this is only local network traffic between 2 servers.
We are facing a very problematic situation since last several months due to accessive bandwith usage. But we are sure this is only local traffic.
We have 2 Servers with our hosting provider
Server A - this is a VPS
all our webfiles/domains/dns/nameservers reside on this server
Server B - this is a dedicated server
contains only databases
(we are actively running vbulletin based forums on this servers)
Since last several months we are facing huge bandwith increase since we have transferred only our databases to Server B. (earlier database + everything was on Server A) We never ever consumed even 50% of the entire allocated bandwith in past when we were on Server A.
But only after moving the database from Server A to Server B we have found this tremendous increase,
Can we do something about same ? as both the servers belong to same hosting provider.
We are not sure but expect that this is only local network traffic between 2 servers.
I have a VPS. And have had an issue both when it was 1Gig and now I recently downgraded it to 768m, because I am moving some sites to a dedicated.
However, the part I am having trouble grasping is that when I look at graphs from Munin, it will typically always show 200-400MB free memory (and free -m and top agrees with munin), but Munin shows 'committed' memory that is above the total Ram on the VPS and once the 'committed' ram exceeds the VPS limit, processes start failing.
So, why is 'committed' memory exceeding the RAM on my VPS, when Munin, free -m and top all show there is free memory available?
Code:
root@server [~]# free -m
total used free shared buffers cached
Mem: 768 449 318 0 0 0
-/+ buffers/cache: 449 318
Swap: 0 0 0
Here's a graph that munin produces that shows the 'committed' memory exceeding the total memory.
[url]
Two of my domains experience random DNS problems; I've had frequent complaints from eastern countries (and sometimes experience the problem myself) that at seemingly random moments the domain will not resolve. For the eastern countries, this may go on for days at a time, while for myself (in the US) it's no more than an hour or two. While it may work for some, it randomly goes down for others.
View 1 Replies View RelatedAnyway I can trace down who is doing it or what is going on?
View 1 Replies View RelatedHas anyone ever heard of Random House hosting? Know anyone that is using them? Reviews?
View 9 Replies View RelatedI am having an issue with sending out emails via any mail client. This issue started randomly with every account on the server just the other day and I can not seem to figure out what the issue is. I have attached an error message. Let me know if you have experienced this before.
View 3 Replies View RelatedI am trying to install a website builder script. I am using the correct permissions, the install worked fine, but while I'm using the script I get random 403 errors. It always occurs while browsing through the builder, but not on any particular pages. Sometimes I'll get a 403 error right when I log in, other times it will take several minutes before I run into a problem ...
View 3 Replies View RelatedSeems my site is getting random blank pages. I did some research and maybe but not sure its related to open files.
[root@dedicated ~]# cat /proc/sys/fs/file-nr
3264 0 900000
Is this something to worry about? I just did a reboot and it did it.
Current Time: Saturday, 20-Jun-2009 00:18:53 EDT
Restart Time: Saturday, 20-Jun-2009 00:11:17 EDT
Parent Server Generation: 0
Server uptime: 7 minutes 36 seconds
Total accesses: 106629 - Total Traffic: 898.2 MB
CPU Usage: u294.39 s37.64 cu2.91 cs0 - 73.5% CPU load
234 requests/sec - 2.0 MB/second - 8.6 kB/request
590 requests currently being processed, 99 idle workers
Server outputs 53mbps constantly.
Anyone else notice random power failures to theirs around 2-6am EST?
View 3 Replies View RelatedJust a random though, (and my initial research suggest there isn't anything like this) but are there any servers that can work via PoE (Power over Ethernet) as I figured it might be a handy way of keeping wiring down and also inline APC (not sure if turning off a port would kill the power)
View 11 Replies View RelatedI am running wordpress with wp O matic. I want to update my content after 24 hours (but different time each day). Bottom line is I want a cron command which randomly execute after 24 hours instead of a particular time.
For example currently wp o matic shows the following command the following command, would you please advice how i change the this command to achieve the above results (right now wordpress is running on my computer so following thing is just for example)
*/20 * * * * F:Testlogwp-contentpluginswp-o-matic/cron.php?code=8b935355
I was searching google when I saw this => [url]and decided to sign up and post my issue...
I've been plagued over the past few weeks when I noticed the server keeps rebooting randomly ...
A few customers have noticed random domain names inside their email headers and I can't figure out why.
Here's a copy of an email header to show you where the domain is being shown..
Code:
Received: from 87******.no-dns-yet.**** (HELO Computer4) (87.127.166.191)
by randomdomain.co.uk with SMTP
The domains that it is using are hosted on the same server as the client, but do not belong to this client.
My server is centos 5 with cPanel.
When I go to [url](xx.xx.xx.xx being an IP on my server) it shows a random web hosting account that is on that IP?
How do I stop this and put one page there or the "great success, cPanel and apache are working on your server" page there?
recently I have an weird problem and I don't know what might be, I just suspect that this error appeared after we have enabled Keep Alive on apache
I have the same error with randomly Forbidden error. The most time I see it is on 2 websites that are build with Gallery 2 and very rarely on other website, on my end never happent on other websites but some people told me it did.
Bellow is a small part of cPanel's "Last 300 visits" it shows every request so you can see first request was a direct link , I have wrote the galery name .. and the others are aither requests to images either other files ....
I regularly have DNS issues with some of my sites hosted with a specific host... At random sites, the urls done resolve and I get a DNS error.
Just to find out that a few hours later it loads again without issues...
I always thought it had something to do with my ISP... My host says that there's nothing wrong with their DNS.
However, I asked a few people now and it seems they're having DNS problems too sometimes when accessing the problematic urls...