Is this possible to use Multi-IP to sent out request at the same time?
Scenario
-8 IP is assigned to my box
-I have 8 domains
Now, I would like to connect to a serverX, However, serverX only allow two concurrent connection per IP at the same time.
Is this possible for me to use 8 IPs with 8 Domains to sent out request and having (2X8) = 16 concurrent connection to serverX
My customer has an external facing Apache server that is acting as a reverse proxy to two internal applications. They have:
- external addresses for each app which resolve to different ip addresses, so app1.their_domain.com and app2.their_domain.com resolve to 77.3.170.10 and 77.3.170.11 respectively.
- the Apache server has two network interfaces with ip addresses 192.168.10.10 and 192.168.10.11
- the external ip addresses resolve to the above internal addresses
- the firewall between the Apache server and the internal app servers is configured to allow traffic from 192.168.10.10 to reach app_server1, and traffic from 192.168.10.11 to reach app_server2, both using port 7777.
I have configured a virtual host in httpd.conf for each ip, i.e.
Code:
<VirtualHost 192.168.10.10:80>
...
ProxyPass /app http://app_server1:7777/app
ProxyPassReverse /app http://app_server1:7777/app
RewriteRule ^/$ /app/app1 [R,L]
...
<VirtualHost>
and
Code:
<VirtualHost 192.168.10.11:80>
...
ProxyPass /app http://app_server2:7777/app
ProxyPassReverse /app http://app_server2:7777/app
RewriteRule ^/$ /app/app2 [R,L]
...
<VirtualHost>
This works fine in that the external address are being routed to the correct application, however the firewall is blocking requests to the second app as it appears the requests are coming from the Apache servers 'primary' ip address 192.168.10.10 instead of 192.168.10.11.
Is it possible to send requests using the ip address from the relevant VirtualHost?
Windows server 2008
Apache 2.2
Request response time on my openvz node is very very low!
Load is below than 4 6 5
But ping, http, mysql, ... response time is very low!
At 1:25am last night I received this message and our server locked up:
Jan 16 01:25:02 host kernel: Unable to handle kernel paging request at virtual address 00361fa8
Jan 16 01:25:02 host kernel: printing eip:
Jan 16 01:25:02 host kernel: c0177f86
Jan 16 01:25:02 host kernel: *pde = 3cc79067
Jan 16 01:25:02 host kernel: Oops: 0000 [#1]
Jan 16 01:25:02 host kernel: Modules linked in: md5 ipv6 parport_pc lp parport ipt_TOS ip_conntrack_ftp ip_conntrack_irc ipt_REJECT ipt_limit ipt_multiport ipt_state autofs4 sunrpc ipt_LOG iptable_filter iptable_mangle iptable_nat ip_conntrack ip_tables dm_mirror dm_mod button battery ac ohci_hcd ehci_hcd r8169 8139too mii floppy ext3 jbd
Jan 16 01:25:02 host kernel: CPU: 0
Jan 16 01:25:02 host kernel: EIP: 0060:[<c0177f86>] Not tainted VLI
Jan 16 01:25:02 host kernel: EFLAGS: 00010202 (2.6.9-22.EL)
Jan 16 01:25:02 host kernel: EIP is at __link_path_walk+0xa77/0xd98
Jan 16 01:25:02 host kernel: eax: 00361f80 ebx: 00000000 ecx: f3138e60 edx: f3138e5c
Jan 16 01:25:02 host kernel: esi: f7b4ea0c edi: 01b07b37 ebp: f3138f0c esp: f3138e3c
Jan 16 01:25:03 host crond(pam_unix)[27321]: session closed for user root
Jan 16 01:25:03 host kernel: ds: 007b es: 007b ss: 0068
Jan 16 01:25:03 host kernel: Process dataskq (pid: 27325, threadinfo=f3138000 task=f403d220)
Jan 16 01:25:03 host kernel: Stack: f3138f58 00000000 f3138e90 c018109b 00000001 00000000 f4e0f00a c18c8c80
Jan 16 01:25:03 host kernel: f22e0ef8 01b07b37 00000004 f4e0f006 f3138f0c f3138f0c f4e0f000 f4e0f000
Jan 16 01:25:03 host kernel: 00000000 c01782e8 f7c609b8 c18c8e00 00000000 00000000 00000000 00000001
Jan 16 01:25:03 host kernel: Call Trace:
Jan 16 01:25:03 host kernel: [<c018109b>] dput+0x33/0x423
Jan 16 01:25:03 host kernel: [<c01782e8>] link_path_walk+0x41/0xb9
Jan 16 01:25:03 host kernel: [<c01785e0>] path_lookup+0x104/0x135
Jan 16 01:25:03 host kernel: [<c0178725>] __user_walk+0x21/0x51
Jan 16 01:25:03 host kernel: [<c01729bc>] vfs_stat+0x14/0x3a
Jan 16 01:25:03 host kernel: [<c0172fc5>] sys_stat64+0xf/0x23
Jan 16 01:25:03 host kernel: [<c030f91f>] syscall_call+0x7/0xb
Jan 16 01:25:03 host kernel: Code: e8 46 f4 ff ff 8b 44 24 20 8b 70 20 31 c0 85 f6 0f 95 c0 85 44 24 10 0f 84 6f 02 00 00 8b 86 cc 00 00 00 85 c0 0f 84 61 02 00 00 <83> 78 28 00 0f 84 57 02 00 00 8b 44 24 1c 85 c0 74 03 ff 40 28
Jan 16 01:25:03 host kernel: <0>Fatal exception: panic in 5 seconds
Jan 16 01:25:06 host crond(pam_unix)[27320]: session closed for user root
-----------------------------------------------
Yesterday morning I received a similare message aswell as the server locking up:
------------------------------------------------
Jan 15 06:40:47 host kernel: Unable to handle kernel paging request at virtual address 00fe0dc8
Jan 15 06:40:47 host kernel: printing eip:
Jan 15 06:40:47 host kernel: c03074f2
Jan 15 06:40:47 host kernel: *pde = 3b25c067
Jan 15 06:40:47 host kernel: Oops: 0002 [#1]
Jan 15 06:40:47 host kernel: Modules linked in: md5 ipv6 parport_pc lp parport ipt_TOS ip_conntrack_ftp ip_conntrack_irc ipt_REJECT ipt_limit ipt_multiport ipt_state autofs4 sunrpc ipt_LOG iptable_filter iptable_mangle iptable_nat ip_conntrack ip_tables dm_mirror dm_mod button battery ac ohci_hcd ehci_hcd r8169 8139too mii floppy ext3 jbd
Jan 15 06:40:47 host kernel: CPU: 0
Jan 15 06:40:47 host kernel: EIP: 0060:[<c03074f2>] Not tainted VLI
Jan 15 06:40:47 host kernel: EFLAGS: 00010286 (2.6.9-22.EL)
Jan 15 06:40:47 host kernel: EIP is at __unix_remove_socket+0x14/0x4e
Jan 15 06:40:47 host kernel: eax: f7abb948 ebx: f5fe0280 ecx: f5fe0288 edx: 00fe0dc8
Jan 15 06:40:47 host kernel: esi: f5fe0280 edi: f76fccbc ebp: 00000000 esp: f6974f68
Jan 15 06:40:47 host kernel: ds: 007b es: 007b ss: 0068
Jan 15 06:40:47 host kernel: Process estate.cgi (pid: 10298, threadinfo=f6974000 task=f6870600)
Jan 15 06:40:47 host kernel: Stack: 00000000 c030775f f5fe0280 f5fe0280 00000000 f76fcc80 f76fccbc f7a7a780
Jan 15 06:40:47 host kernel: c02aae3a f76fccbc c18c8600 c02ab950 f65b4680 c0168e5a f65b4680 00000000
Jan 15 06:40:47 host kernel: f792ac80 f6974000 c0167763 00000003 09d6cec8 00000000 c030f91f 00000003
Jan 15 06:40:47 host kernel: Call Trace:
Jan 15 06:40:47 host kernel: [<c030775f>] unix_release_sock+0xf/0x19f
Jan 15 06:40:47 host kernel: [<c02aae3a>] sock_release+0x11/0x63
Jan 15 06:40:47 host kernel: [<c02ab950>] sock_close+0x26/0x2a
Jan 15 06:40:47 host kernel: [<c0168e5a>] __fput+0x55/0xee
Jan 15 06:40:47 host kernel: [<c0167763>] filp_close+0x59/0x5f
Jan 15 06:40:47 host kernel: [<c030f91f>] syscall_call+0x7/0xb
Jan 15 06:40:47 host kernel: Code: 89 c2 c1 ea 08 31 c2 81 e2 ff 00 00 00 89 16 89 fa 5b 89 d0 5e 5f c3 53 89 c3 83 78 0c 00 74 43 8d 48 08 8b 40 08 8b 51 04 85 c0 <89> 02 74 03 89 50 04 c7 41 04 00 00 00 00 8b 43 18 48 75 21 68
Jan 15 06:40:47 host kernel: <0>Fatal exception: panic in 5 seconds
i have 100 web hosting clients that i want to move 50 clients to another server but i only now have one domain for the dns
server 1#
hostname : host01.dnsdomain.com
nameserver1 : host01.dnsdomain.com
nameserver2 : host02.dnsdomain.com
server 2#
hostname : host01.dnsdomain.com
nameserver1 : host03.dnsdomain.com
nameserver2 : host04.dnsdomain.com
and in the domain control panel i set the nameservers for the dnsdomain.com
nameserver1 : host01.dnsdomain.com
nameserver2 : host02.dnsdomain.com
and i didn't create account for it just dns only
is this a right way to create multi dns for multi webhosting servers?
and when i want to make subdomain hosting account site someting like
test02.dnsdomain.com
it didn't work
I'm starting to do my homework on a dedicated server and am really not that savvy on what's best for my needs.
Firstly, I'm just trying to determine how much grunt I need and am not really sure of the benefits of multi-core vs single core vs single processor vs multi processor.
I've been running on a low density VPS with 1 Gig ram for a while and it's doing fine but won't handle this setup too much longer. My site does a very high amount of disk read/writing and for the size of my site there are a lot of database calls.
I'm thinking a multi-processor will do wonders for a database intensive site, but will a single multi-core process do fairly well also? My budget is at the low end and obviously I can afford more for a multi-core single processor.
This is a rare issue i have on a RHEL 5.2 + cPanel server.
Server time is:
Tue Nov 11 17:02:51 CST 2008
Squirrelmail time show:
Code:
Last Refresh:
Tue, 5:02 pm
So, that is correct too..
But email arrives with -4 hours time, example:
webmaster@xxx.com 1:03 pm testing email
I already rebooted httpd, exim, and imap server, and the server itself too.. and problem stills.
I got report from webceo that I have some issues. May someone help me fix this?
DNS Lookup: 0.22 sec
Connect time: 0.33 sec
Host ping: 0.10 sec
That mean too slow with the other sites!
I can't get access to a certain site. I always get the page with:
network time out - server at *** takes to long to respons. More people have noticed this and apparently it only happens to people with certain specific providers. And not all the time. Some times they DO get access eventy to they belong to the same ISP. So I guess an ISP isn't blocking access to it otherwise it would be permenantly/The site administrator insists that certain ISP's are blocking his site. He's hosting it on his own server. The domain belongs is registered at namecheap.com.
If an ISP is blocking this site (if that's possible?), that would lead to that 'network timeout' page wouldn't it?
What is the most likely reason for getting a timeout page anyway?
A little confused about some technical aspects of a setup.
If anyone knows what I am trying to say please advise.
Question :
There are 4 WAN connections.
Conn01 = 10mbps upload Line with IP 111.111.111.111
Conn02 = 1mbps upload Line with IP 222.222.222.222
Conn03 = 100mbps download / 1mbpx upload Line with IP 333.333.333.333
Conn04 = Dialup line at 56kbps with IP 444.444.444.444
If I connect all these to a Multi WAN Router lets say Linksys RV016.
1) When a client tries to upload something to the server with IP 444.444.444.444 will it still run at 56kbps or will it be load balanced into the fastest line which is 10mbps.
2) When a Client's server connected at 111.111.111.111 tries to download something from the internet to this multi WAN setup, does he get a max of 10mbps or will he be routed to the 100mbps?
I have a dedicated server specs: AMD 3500+ 64 Bit CPU, 1 GB Ram, 160 GB Sata Drive. For 1 month, CPU load average reaches 40-50 value. This happens about 5-6 times in a day. When I stop httpd service for 30 seconds everything goes normal. I think this is not a DoS attack because it comes systematic, I dont believe no one makes this regularly except bots.
Maybe its a system service or a cronjob but it stops when I turn off httpd service?
How can I be sure about what's making this regularly load?
I also did set up a script which mail me when load average of system goes crazy and restart httpd service. But instant restart is not working to stop load increase.
The server is going down from time to time, every 12 days or so the site hosted there is no longer accesible, everything starts with the site slowing don and down and then is not longer reachable, what we do is to request a power cycle, and with this we start all over again till next power cycle, so on so on, of course, here are my server details and more info on this:
- MySQL - 5.1.41-3ubuntu12.10
- Apache - 2.2.14-5ubuntu8.4
- PHP - 5.3.2-1ubuntu4.9
- operating system: Ubuntu Server 10.04 LTS
After some time emailing the support guys to barely check about what's going on, we received an email with a few things:
1.- found a few errors that likely would cause issues with Apache. The first error is:
[Mon Feb 04 05:03:10 2013] [error] mod_fcgid: fcgid process manager died, restarting the server and the next error is:
[Mon Feb 04 14:32:34 2013] [error] server reached MaxClients setting, consider raising the MaxClients setting ...
Both these errors seem to indicate that you have a process that is running out of control on your server. We were unable to determine what script on your site is running caused your connections to be maxed out however it does appear that before these errors were generated there was a WordPress plugin referenced in your access logs...
2.- Additionally during our review we did find that your error log for mercadodedinerousa.com is 45 GB's which is excessively large and can cause problems when Apache is trying to write a such a large file.
3.- The majority of the errors being logged are:
[Wed Feb 06 12:12:31 2013] [error] [client 200.76.90.5] Options FollowSymLinks or SymLinksIfOwnerMatch is off which implies that RewriteRule directive is forbidden: /var/www/vhosts/mercadodedinerousa.com/httpdocs/index.pl, referer: [URL]
I am currently looking for a new IP KVM. Right now I use a mix of HP and Raritan KVMs and I'm honestly not super happy with either of them. The main feature I'm looking for is the ability to setup multiple users and only allow them to access certain ports/devices on the KVM.
What would be the best IP KVM to look at for this?
We have a need in one of our locations to multi-home ourselves, as the facilities provider doesn't meet our needs. If we get a /24 from one of our upstreams (L3 for example), will they allow us to broadcast it to our other providers as well? Obviously we'll have our own ASN and be doing the routing.
View 10 Replies View RelatedI am using virtuozzo firewall to secure access.
I enter 58.27.175.211/255.255.255.0 for Source Address and Netmask for port 22.
But still I can connect using 58.181.103.217 or 58.27.151.120.
Second is it possible to enter two different ip address in source address?
I was on this site a while ago and someone shared a link to a site that would ping a given IP from multiple locations around the globe and give the output. Does anyone know of a site that would do this?
View 2 Replies View RelatedIs "selectable Multi-Language" professional for a hosting company website? and does it attract more clients? I mean giving visitors a drop down menu of some major languages and allow them to select the language of your website. Is it professional to have? attract more clients?
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Basically i need to execute some command line scripts on a windows server. The way im doing this is vbscript which is called in asp.
What i really want to do is have a central server on linux which i can host a php script and mysql database on which in turn connects to the windows server to execute the vbscript.
Ive always worked with php and mysql so i dont really want to run everything in asp. If i did run everything in asp im not to sure if it would be clever to run asp scripts with mysql and would then have to go to the microsoft sql 2005 route.
So my question is what would be my best way to run php and mysql on a linux server that can in turn connect to a windows server to run a vbscript or execute through command line and log data to mysql, baring in mind authentication and security.
I do have php and mysql set up on the windows server but after alot of trouble getting it running right im not to keen on running the php scripts local, i really need a central linux server for the scripts.
What is the most friendly hosting company to set up and run Wordpress Multi-User?
What is the easiest way to set up and manage Wordpress Multi-User?
I'm contemplating whether to get a quad core high clock speed OR 2x quad core lower clock speed processor for my rack server.
The question boils down to.. Does Apache, PHP, and MySQL support multi-threading? Will having a bunch of cores just be a waste if high-traffic web hosting is the primary goal?
I run a PHP/MySQL intensive shopping cart.
What is the best configuration for a dedicated server? Trying to get my head round all the terminology as fast as I can.
Multi Processor Single Core
or
Single Processor Multi Core
Are there any hosts on the net with reasonably priced true multi site hosting*?
I'd host something like 5-6 small wordpress & blog sites, no special diskspace or bw requirements.
I know Site5 offers something like this, but I'd like something with over 80% uptime
(* By this I mean each site should have its own cpanel & the sites should be completely separate, due to the fact that I'm lazy & don't want to set up domain pointers or whatever they are called.)
This is kind of a followup of our thread
"More RAM or better CPU?" [url].
Sorry if we were supposed to post in that thread in stead, but this is a different question that in that post.
Our server is still crashing a lot and unfortunately we can't afford a multi processor with multi cores.
So the question is as follows:
For a site with a lot of database activity, what would be the best thing to go for:
a) Single processor with multiple cores, or
b) Multiple processors with a single core.
a = Intel Xeon 3060 Dual Core Conroe Processor (2.4GHz)
b = 2x Intel Dual Xeon 2.8GHz Processors
I am researching a little on this topic and hopefully someone can shade some light for me.
If I have 2 connections from 2 separate ISPs with each a set of different static IP addresses. Using something like [url]a twin WAN router, does it mean that I could :
1) Still use the Static IPs or must it be the local dynamic ones?
2) Increased speeds? Does it increase or provide a better route for outgoing connections?
3) Shouldn't incoming connections still be the same since they have to travel via a specific path as determined by the ISP?
If I am right, If I use 2 WAN connections, users would have a more stable time trying to download stuff, but when people are requesting files from them ( uploading ) it would depend on which ISP's IP they are connected to?
So If I take 2 100Mps line and use the dual WAN, I can increase downloading speeds butuploading speeds will be unaffected?
say you run a script like DIGG and then it just became huge and huge and one day u find out that a server cannot run it alone, that is u need to get multi servers to cope with the traffic and database requests. How would people go about doing that? Is it the script implementation side of change or just server side of change?
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View 3 Replies View RelatedI am in a bind with Apache's multi process limit. Let me explain what I am doing. There's this website which has career details of all the football players since the beginning of professional football. They have a simple web form which allows you to look at a player's profile by entering his name or his 7 digit numeric id number (on that website).
One of my client wants a list of all the players with a certain "flag" in their profile. So I created an automatic form submission and HTML parsing script to get details of all the players with that "flag" in their profile. Let me not go into too much details and tell you that after applying a few pattern rules to the id number, the number of possible id numbers comes to about 1 million (instead of 10^7; each field can have {0,1,2,3,4,5,6,7,8,9}=10 digits, so net combinations = 10*10*10*10*10*10*10).
Therefore, to completely automate this process I wrote a script which would generate an id number, submit the form with that id number, and parse the resulting HTML profile for the "flag". If the script finds a hit on the flag, it stores all the fields of that player in a database. This script is working absolutely fine but the speed I was getting was about one check per second which means that I would have to leave the script running for about 11 days (to process all of about 1 million checks).
So i came up with this idea to divide the check into ten parts and i created separate scripts for each part. Now basically the first script checks for the first 100 thousand combinations, the second checks for another 100 thousand combinations, and so on.
The problem is that I am able to get only two of these scripts running at the same time. So it would still take me at least 5 days to get all the results. The rest of the scripts just sit there in the server's backlog. This is definitely due to Apache's limitation to handle multiple processes. The server I am using to run this script as well the target webserver both run on Apache2. I am sure it's not a problem with the receiving server. It has to be my Apache web server which is running the scripts. I have tried using mpm_winnt (on a windows server) as well as the prefork and worker modules (on a linux server) without any luck. Has any of you ever faced the same situation?
For those concerned about the legitimacy of this work, rest assured, this is absolutely legit. There's nothing in the website's use policy which restricts somebody from doing this. Moreover, my client hired me to do this only because the website owners were not able to hand over the data he required. They gave the stupid reason that they are helpless in providing the data because they don't have a system in place which would allow them to do a search restriction!
I just bought a new ip address and want to setup this new ip as my server's main ip, making the 'existing main ip' as the secondary ip.
Which means, this new ip will be the server's default ip address for all services, including when connecting to other server.
I'm using CentOs 4.5 and swsoft's panels: HSPcomplete & Virtuozzo Power Panel, and Webmin.
My host and I discussed over a month ago the possibility of adding on another server so that I can use one for MySQL and the other for web, and eventually as my sites expand add a third one so that two balance the loads and the one will be dedicated just for MySQL.
Well, it's been a month now and I have had a server dedicated for MySQL and the other one dedicated for web set up. A month has gone by and my host and I are having problems setting it up - I have not been able to use the new server and have already had to pay the bill when I have not been able to use it for its purpose!
The old server was supposed to act as the MySQL while the new server was supposed to be for web. We are having so many problems trying to set this up, well at least my host is, and I am becoming more and more frustrated as the days go on because I am paying for the new server that I can't even use because it's not set up properly.
I am using DirectAdmin control panel and linking them is a pain in the butt. I linked my host to this article, but I don't think he's implementing what is being instructed to do:
[url]
The new server is still not working properly with the MySQL server and I have no idea what to do here. I have already paid for a month's service for no reason and now I am starting to feel robbed because this process is taking so long.
I am willing to switch control panels if it will speed up the process. Does anybody know of any control panels that will be better suited for my need? I'd ideally like to simply manage both servers in one control panel - under one license - and manage each server's services and most importantly the MySQL and it's databases on the dedicated server for MySQL.
I am working on a busy and popular website which has a large amount of database activity - and requires hourly backups of all database data.
At the moment the site is hosted on two servers - one for the front end web server, one for the database.
Both servers are running a RAID HDD system which allows quick swaps of faulty HDDs without data loss.
An hourly full backup of database tables is running which is killing the server when it runs.
ISP has suggested installing a third server to run as a slave to the existing DB server, and hence always hold a duplicated of the live database.
I have a feeling however that this is basically just like having RAID mirroring, but on a different machine - so to solve the problem of a potential dodgy SQL statement wiping out ALL copies of the live database, we'd STILL need hourly backups to run, and hence would still see the major system speed drop each hour at the time of backup.