General :: Setting Up Production Web Server?
Jan 7, 2011
This is my first time to set up a production web server and I got some few questions on our migrations:
1. Our website from the Web Hosting company already gaining 5000000 hits/month and 35000 unique visitors/month, problem is we only have 2x4mb dedicated line here in the office and one IBM x3650 m3 for our LAMP, you think guys its enough to handle that kind of traffic if we start moving our web server here in the office?
2. If I register www.example.com to GoDaddy for example, do I still need to setup a DNS (BIND) server on our side?
3. This is my current Apache config:
Apache/2.2.3 (CentOS) DAV/2 mod_fcgid/2.3.6 mod_auth_kerb/5.1 PHP/5.1.6 mod_python/3.2.8 Python/2.4.3 mod_ssl/2.2.3 OpenSSL/0.9.8e-fips-rhel5 mod_perl/2.0.4 Perl/v5.8.8 with PHP eAccelerator.
Anything to share to increase the performance of the web server?
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Feb 24, 2010
I administer several web hosting (combined with mail relays and other services) production servers under Debian GNU/Linux. I began giving these public services two years ago via three boxes: the first is a gateway which controls traffic via iptables (it's attached to a DSL modem) between a public subnet (the DMZ) and a local network which connects several workstations. In the DMZ subnet I maintain two Pentium-III era boxes, they've grown in services since I set them up. Actually, I think I should buy new ones, but, you know, I want to save money and lenghten its life.
So, they've grown in data hosted, but I've never implemented a resilent backup system. I've set up some rsync tasks sheduled via cron jobs to copy the entire UNIX file system in each of the DMZ boxes, but I'd like to be prepared before an unexpected "real" crash of some HDD, I mean, some problem that renders a disk unusable.
AFAIK, sysadmins sync entire HD backups which are capable of recovering a system via swapping the unusable unit with the backup unit. Maybe the best fashion is to implement a RAID mirroring the unit, I'm I right? So, keeping my systems as they are, I mean, capable of using 4 parallel ATA units, what would you do? Use dump, rsync or some other way to have an operational second unit with an exact copy in a bootable second drive, in order to quickly swap it if the main unit fails?
Comes to my mind to partition a second unit (so making it bootable) and backup daily via rsync only those parts of the unix file system hierarchy which are necessary to boot a system properly. What do you think about this workaround?
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Jan 24, 2011
i have a production server running RHEL 4.0 with 2x146 GB on a RAID 1 with OS and another storage with 2x300 GB on a RAID 1 with the application, it's the database and application.
No LVM was installing and configured before, and now the second array with mirror of 300 GB is running out of disk.
1. i have 2 new hdd to build another mirror 2 x 300GB.
how can i create a LVM to star using the vgextend anytime i need it?
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Jul 9, 2010
I assume that the maturity of UFW is irrelevant because in the end it is just a front end for iptables...
But just in case, is UFW mature enough for production use on a web server?
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Mar 20, 2009
My server [URL] goes down in some cases.
On general time load average is 0,15-0,2 Only http(with php) and mysql working on it.
Here are some screens when the server goes down: [URL]
Here are the same bug with mine described: [URL]
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Mar 3, 2010
My J2EE application is deployed in Weblogic 9.2 MP3 in Linux box.The problem is "api response time in production system is higher that test system( test system has more data and load w.r.t production .)"we got large amount of page fault in production Garbage collection log ,where as in test system (with same load ) page fault is Zero.And this page fault making my production system slow.In respect of JVM(JrockIt)both the system memory settings(Xms1024m -Xmx1024m -Xgcprio:throughput) are same.
Meminfo for Production:
MemTotal: 3866724 kB
MemFree: 1131748 kB
Buffers: 52304 kB[code].....
any system/kernel parameter set is missing in production which might cause this large amount of page fault. If any more information is required let me know?
Linux Version in Prod:
Linux version 2.6.18-53.el5 (brewbuilder@hs20-bc1-7.build.redhat.com) (gcc version 4.1.2 20070626 (Red Hat 4.1.2-14)) #1 SMP Wed Oct 10 16:34:19 EDT 2007[code]....
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Mar 12, 2009
Is it possible to setup software RAID on a current production server.
If so how would I go about doing so?
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Apr 20, 2011
I made the terrible mistake of upgrading my live Debian Lenny web server with the the dist-upgrade option in apt-get. I didn't realize this was actually an unstable upgrade and now I have had to make all sorts of choices of what configuration files to keep or upgrade ect. The apache conf files were actually bad after the upgrade and I had to replace them with the backups (phew) and the system is currently still up and running. However my virtualmin installation is no longer working due to a issue with perl ( but thats another question I guess to ask somewhere else maybe ). Anyways... I'm very scared to restart because my server is co-located somewhere else and Im the only one who has ever worked on this server so I would need to go there and fix it myself if it doesn't restart. Basically I have two questions.. is there an easy way to move back to stable packages..If so is this recommended?
And also I'm currently trying to fix some broken dependencies in the package manager but when I run "sudo aptitude -f install" It keeps telling me it is going to remove all of these packages (listed below), some of which I know are very important to the system and I cannot figure out why it would keep trying to do this. I get an error on "phonon-backend-xine" whenever it tries to upgrade just saying this
"(gtk-update-icon-cache:12343): GdkPixbuf-WARNING **: Cannot open pixbuf loader module file '/usr/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache': No such file or directory"
I installed some desktop related packages a while back like gnome-desktop and I know the package is related to this, but all I really care about is making sure the server stays online and not about the desktop packages. I tried just removing kdebase-runtime and anything else that is dependent on it, but it wont let me do anything at all without fixing this broken package.
I really would just like to go back to lenny stable again but I know its probably too late since I already had it install a new kernel and grub 2 (auto configuring my new grub.list)..
[Code]...
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Jun 21, 2010
What are the precautions and procedure do i need to follow while upgrading the Kernel?
Please let me know the complete details of a procedure of upgrading a kernel in a production environment?
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Sep 17, 2010
What types of request for Samba & NFS comes in production support?
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Oct 12, 2010
I am proposing moving from the mainframe to Linux. Problem is that I am not aware of a scheduling product that is available to handle the production code. Currently using CA7. Is there anything out there that accomplishes the same thing? As you can tell, I am NEW to Linux!
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Jul 1, 2010
I have two servers on a vlan at my datacentre/colocation and previously both servers had public IPs on their eth0 interfaces. The servers are HP ProLiant DL360s - one is a G4 and one is a G5 The newer G5 is now the LAMP server and the G4 has been retired and I want to repurpose it as an iSCSI target using openfiler freenas or similar.
My G5 has public/static IPs lashed to the eth0 physical interface and the eth1 is not configured to do anything yet. The G4 will have both interfaces available - perhaps one for ssh access from one of my static public IPs and the other to be a private IP on the local vlan. Here is what I am trying to get my head around...
The G5
eth0 - Public IP - full LAMP services on two or three virtual interfaces
eth1 - Private IP 192.168.0.1
The G4
eth0 - Public IP for ssh
eth1 - Private IP 192.168.0.2
Because my traffic between eth1 on these boxes is via private IPs on the local private vlan it doesn't add to my quota for bandwidth. How do I go about configuring the routing and gateways and other aspects of this so that I can run a private IP space network between the eth1s and still serve the outside world from the eth0s...
I am afraid that if I assign the private IPs to the eth1 interfaces the routing may either not work or interfere with the access to the production internet facing interfaces (eth0s).
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Jul 21, 2010
i have a small home network. i have laptops and workstations that my family (public) uses and an esxi box (private) that i use to test new apps for work.i need to have the public network separate from private. I have tried using two linksys routers but was unable to get the private network to access the internet. i was thinking i could use iptables with a couple of nics but I am not sure it would work. I know this could be a lot of work for someone that has never used iptables before but will give me a reason to learn it.i am sure setting up a public and private network has been done before i just don't to buy a bunch of hardware. I have a extra workstation and a bunch of nics so i would like to go that route. I am open to suggestions.
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Mar 26, 2010
Brand new to Linux. Sort of got thrown in front of the bus if you know what I mean. The company I work for has a Linux server running CentOS 5.4 Company uses Linux for their Email, FTP and Web Server. Have been here a few years dabbling in and out of Linux and now that the old Admin has left the company.....I need to learn it ASAP. The server has run pretty solid until today.
The email server runs SendMail and SpamAssasin. Received lots of complaints today regarding extra SPAM. Noticed that SpamAssassin was not running. Tried to restart it through the WebMin tools and got the following error: Starting spamd: child process [3956] exited or timed out without signaling production of a PID file: exit 255 at /usr/bin/spamd line 2588.
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Apr 29, 2011
I just built a home computer with 3TB hard drives I wanted to set up in a RAID 5 and load Ubuntu server onto it. The first thing I did was set up the drives in a RAID 5 using just the motherboard chipset software to do it, so a 'hardware' RAID basically. I installed Windows first to see if all the hardware works ok (that seemed the easiest way to verify it) and with the exception of the ethernet card (which needed a driver disk to work) everything was plug n' play and worked wonderfully. After that I booted the Windows install disk again to delete the partitions, hoping Ubuntu 10.10 server would create its own.
The problem I'm having is no matter what I've tried (deleting and recreating the RAID 5 setup, departitioning the drives), whenever I try to install Ubuntu it won't recognize the RAID as a valid disk. Ironically, it did at first, because I installed windows to verify the hardware. The ethernet card wasn't working automatically in the Ubuntu setup, (although it found the unformatted RAID drive), so I installed windows and figured out it was just the drivers that needed to be installed.
So now when I try to install Ubuntu, it finds the ethernet card perfectly and connects to the internet during the installation...but that actually stinks because it's telling me it's still accessing the drivers from the drives that I thought I formatted. Once it gets to the storage part of the installation afterwards, it can't find the RAID drive anymore. I tells me to choose a disk from the list, but the list is blank. So I can't install on it.
If I remove the RAID entirely and just keep the drives as 3 separate IDE drives, it finds every drive perfectly and can install to either one I choose. But I don't want this, I definitely need them RAIDed.
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Apr 6, 2010
I have started using linux(ubuntu 9.10) on a standalone PC so i can't try out the tasks that require connection to a server. Can I set up a server on the same PC and use it as a client too? If not, what are the possible alternatives to practice the tasks that require a server?
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May 4, 2011
I am trying to set up a ssh server on my mom's box that is running Fedora 14. I have set the server up and when I am logged onto the box locally, it lets me log in. But when I try to shell in from my apartment some miles away, I get the following error:ssh: connect to host 71.176.165.28 port 22: No route to host.However, when I try to ping it, the machine is reachable, and traceroute likewise gives me a clear route to the remote machine.
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Feb 28, 2010
I've been doing XHTML/CSS for the past several weeks, and started learning PHP last week (all on windows). Learned how to set up IIS server, mysql and php to be able to do all the work locally. Now, I've got Ubuntu 9.04 on my laptop and want to continue working with the book I have on it, so I can do some of the work when I'm away from home as well. Questions I have are:
1. How to set a server up?
2. SQL? (mysql?)
3. php? How do I check if I already have any of those installed on my system, and if not how to set them up?
4. where would the root system be for the server if I have it, or if not, where will it be?
5. do I refer to it as "localhost" here aswell i.e. [URL]
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Mar 1, 2010
I'm trying to set up a simple local email service on a small office client-server network. Can I use sendmail without setting up a separate DNS server. If I need a DNS server can I set it up on the same computer as my sendmail MTA? Can it be a private DNS server?
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Jan 9, 2010
I have been confused with the overall new 389 DS Server Setup.All I did upto now is:yum install 389-ds
and it did all the installation correctly.
All I need is Setup 389 Server with SSL.I did went through http://directory.fedoraproject.org/wiki/Howto:SSL but no Idea how to proceed.I am confused with the following points:
1. Do I also need to run setup-ds-admin.pl and setup-ds-dsgw too?
I tried running setup-ds-admin.pl and it stucked at :
The server 'ldap://389-ds.sap.com:45474/o=NetscapeRoot' is not reachable. Error: unknown error.
2. When Should I run the setupssl2.sh script? After running the above setup-* scripts?What changes I need to make on the script?
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May 21, 2010
Im trying to set up a web server on Linux and I was wondering if there may be any shortcuts available or a simple step process to get me where I need to be in regards to setting up the server.
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May 18, 2010
I have ubuntu server installed on an older 1700+ AMD machine with 512 DDR Ram and 40 GB HD. I don't know the first command to type in the Linux command line and from what I have read their is a GUI interface you can install but it's not recommended for security purposes. My question is can you install the GUI to setup the server and then uninstall it when your done and is there any downside to this approach?
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Jul 18, 2011
I want to practice setting up of NFS server and NFS client on Redhat using virtual machine on my laptop. I dont think setting up NFS should not be a problem but how do I replicate a NFS client. I just have one laptop. Is it possible to replicate both server and client using the same laptop? If so, can anyone tell what tools i can use to perform the above for practicing.
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Feb 23, 2010
I currently have 4 Linux Servers installed in a test lab that I have built for my job. I am in the process of trying to get FTP to work (vsftpd is installed). I don't need an FTP GUI or anything, I can use terminal (and I don't have an internet connection, so I probably can't get one anyway). I bring up the terminal and I type FTP and I am presented with a few problems:
1. If I try to FTP to one of the other Linux Servers on the network, I get "No route to host" error.
2. If I try to FTP to the Server I am sitting on, then I am able to successfully connect, obviously. But when I do an "ls," I don't see any available files.
I am assuming this is because I have not yet set up a folder for it (i.e. Windows uses "ftproot" folder). I am running Ubuntu Gnome 9.04 Jaunty Jackalope for a GUI, and I am running Ubuntu Server underneath (Yes I need a GUI for what I am using the server for).
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Jun 2, 2011
I'm trying to learn Linux and have created a VMWare guest operating system using CentOS 4.8. I expect the next step is to install ssh in order to transfer files to the server but as of yet I haven't figured out how to assign it a host name or how to effect a transfer.
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Jul 20, 2011
what is Production IP address and Management IP address in Linux servers? What is the significance of these two? When to use what?
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May 14, 2010
Have installed Suse 11.2. how can I change the calendar format dd/mm/yyyy and how to configure the system to sync.from an ntp?
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May 4, 2010
I have a ubuntu server , can advise if I want to change the network setting ( eg. IP address , gateway address etc ) , which one is the configuration file ? for example , if I want to change eth0 setting , what file I should update ?
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Apr 23, 2010
I am going to install Fedora server for production use so, i want to know which Fedora version is most stable for production use.
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Apr 28, 2011
I have had a look round and so far the consensus seems to be that you cannot upgrade a 11.1 system to 11.4, is that right? I have a small server running for a charity, it runs Oracle Apex, Kerio Connect and acts as a file server using Samba. It has KDE4 on it. The reason for upgrading would be to continue to receive updates for the OS.
Has anyone any advice on where to start with this or whether it is a dead loss?
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