Server :: Configuring RAID 5 Under Ubuntu Server 9.10
Jan 16, 2010
I have a problem configuring a RAID server under Ubuntu 9.10 (kernel 2.6.31.17) with mdadm (v2.6.7.1). First I had some hardware issues that finally got solved by using another motherboard. Now I am dealing with the software part.In order to ease things, I am trying to configure a RAID 5 with three partitions in one disk. I have two HD's, one IDE where the OS lies (recognized as sda), and another where I intend to build the RAID (recognized as sdb). In this second drive I have made three partitions (sdb1, sdb2 & sdb3) of the same size.I've already re-installed Ubuntu 9.10 a couple of times, zeroed the superblocks of the partitions, repartitioned the disks with different partition sizes (I am using 5 GB partitions to save time). I've gone through this process several times, and I really don't know how to move forward now. If RAID is about trust and reliability, this is exactly what I'm not able to get.
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Feb 7, 2011
I'm trying to setup RAID 1 on a CentOS 5 server for a zimbra email server.I get a partion schema error. Can I do this?The server is a HP Proliant ML150 G3 server with two 80GB HDD.
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Jan 29, 2010
i want to configure an Open LDAP server in Ubuntu....and also want it to connect to its clients, i have two machines for testing,one for client & one for server, i followed the tutorials on ubuntu documentation,but did not succeed in making either the client or the server,
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Sep 17, 2010
I would like to install and configure Transparent squid proxy on a gateway server ,but i dont have a local OR intranet DNS server.I am facing issues do that ,regard .My IP series is 192.168.1.1/24
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Apr 10, 2010
I'm trying to configure Postfix with a mail server that I programmed in C. The main.cf is set in this way :
Code:
relayhost = [myMailServer.localhost]
smtp_sasl_auth_enable = no
smtp_use_tls = no
disable_dns_lookups=yes
smtp_never_send_ehlo = yes
code....
I don't know why it doesn't receive response after HELO. In fact if I debug my mail server with gdb, I can see it sends a 250 response code. Moreover, I've tested my server both with traditional mail clients, as Thunderbird, and through telnet session and it works very well.
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Jul 10, 2010
especially to ubuntu server 8.04 because it doesnt use a GUI. Now my question is on how to insert IP address in configuring DNS server using bind9. Actually i'm using this guideBut i m not sure on how to insert IP addresses on the primary master and secondary master. Should I insert the Ip address that i found when i type ifconfig ? or Should I assign a new IP address.I have set up a webserver, DNS server, File server and mail server on a virtual box. For now, at first, im working with the DNS server or should I work with the web server first?what should I do?
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May 28, 2010
I am running single drive Ubuntu server 9.10 with a lot of software. Now I want to add one more disk (same size and type) and to convert this to RAID 0 without need of reinsallation. Is it possible and if yes how? I didn't find nothing for RAID 0. It sounds simple, but probably is not.
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Mar 22, 2011
How long does hardware Raid card (raid 1, 2 drives)take to mirror a 1 TB drive (500gb used)?Is there a general rule of thumb for this?4 hours? 12 hours? 24 hours?
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Aug 3, 2010
I am trying to connect a RAID Box to the server via LSI 8880EM2 RAID controller.The raid box is FUjitsu Externus DX60 with raid 1 configured.The server is Fujitsu Primergy SX300 S5 with LSI 8880EM2 RAID card.The external raid box is being recognised by the raid controllers bios.
The server runs CentOS 5.5 64bit. I have installed the megaraid_sas driver from LSI website and MegaCLI utility but CentOS still fails to see the box.MegaCLI utility, when launched from CentOS, recognises the raid box, CentOS does not(no mapping being created in /dev).
I have also tried to create a logical RAID0 HDD on one physical HDD(as seen by MegaCLI) with MegaCLI utility in CentOS.The result was success and the new logical drive could have been used, but when restarting the server, the controllers' bios fails with an error (not surprised(one logical RAID0 on one physical HDD)) and configuration is being erased.
Has anyone tried connecting 8880EM2 controller to a raid box with raid configured on the box, running it all under CentOS and what were the results.
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Mar 25, 2010
I install 1 of the server build hardware raid 10 with hotspare. now the problem i cant monitor the raid. since it shows as single disk.
So if i need to see any crash disk/failure disk i cant monitor or get logs. can someone advise where to get and how to install the hp smart start for linux or any alternate way available in linux to perform such tasks.
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Jun 1, 2010
I have a new home server I built this weekend with 4 x 320 GB Seagate Barracuda SATA drives. I am going to load my O.S. this week however I don't have a RAID controller so I would like to utilize 'Software RAID' via 'mdadm' package. My question is since this is a general home server with no specific function rather than hold my data reliabily and resonably fast, how do you guys recommend I configure my partitions for RAID? What level would be best with my 4 drive configuration? RAID5 or RAID10? Should I use a 3 drive RAID and use the 4th as a spare? Please let me know what you recommend as I don't have a lot of expertise with what is not practical or useless when it comes to Mdadm RAID.
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Jul 21, 2011
I am looking to convert a raid 1 server I have to raid 10. It is using software raid, currently I have 3 drives in raid 1. Is it possible to boot into centos rescue, stop the raid 1 array. Then create the raid 10 with 4 drives, 3 of which still has the raid 1 metadata, will mdadm be able to figure it out and resync properly keeping my data? or is there a better way to do it?
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Mar 24, 2011
I have a box that doesn't have a Raid controller or a software raid running currently. I would like to make it a RAID 1. Since it seems there isn't any IDE RAID controllers hardly around, I have another HD that is the exact model as the drive currently in the box running CentOS. Can I some how add the second drive and get the box to mirror from here own out? The box gets really hot and I want to be ready for a HD failure.
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Aug 2, 2011
I have created a FTP server on CentOS then i stop the anonymous..
FTP:192.168.5.100
User A and password
User B and password
Client 1:192.168.5.101 ( Windows 7 )
ftp permanent setup from 192.168.5.100.i should able access User A and User B home diretories from Client 1 both the folders should be different.is it possible ?but i tried it is showing both folders same contents.
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Jun 11, 2011
I would like to install a subversion server on my Mandriva system, and I was wondering if there are any configuration GUIs out there to help me set it up. Does anyone know of anything out there for this purpose? I found a beta version of a Webmin module that is supposed to provide SVN configuration capabilities, but I can't get it to work (module located here).
Note that I'm not looking for a GUI SVN client like TortoiseSVN, kdesvn, RabbitVCS, RapidSVN, etc. I plan on using such a client to checkout and commit things to the server, but first I need to set up and configure it.
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Jul 17, 2010
configuring RAID, LVM and my physical volumes for a new 10.04 Server install (used mostly as a windows file server and print server). My hardware setup consists of 2 identical 500GB hard drives. My desired end state is:
An ext4 root partition (20 GB)
A swap partition (2GB)
A fat32 partition (450 GB) (to be accessed via Samba)
The above all to be on RAID1 across the 2 disks
The way I see it, the there are a number of possible ways to configure the above, and I am looking for some advice on the best (feasible) option: Create a single MD0 raid volume accross the entire two disks, and then create a single LVG across this, with 3 sepreate LVs, on for each partition above Create 2 physical volumes on each disk, create two raid volume on these (MD0, MD1), one for the LVG with two LVs for the Root and swap, a the other for the FAT32 partition (this seems like more work?) Other more suitable options?
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Jul 23, 2010
what steps to use when configuring a Home Server
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Feb 17, 2011
I have attempted to set up ubuntu server 10.10 on my home network. I only have one computer and access to windows is a must for me, so what I have been doing is installing the server via VMware as a virtual server. Now, I have been able to successfully set up a server that works on the LAN, but for some reason I have been unable to get access to the server via the external ip address.
I will list all known information about my network, host computer and VMware.
I'm currently using VMware Workstation. For the virtual machine I have installed, I have allocated 500 GB of space to a partition on my 2 TB external hard drive. The network is currently set to NAT, but I would much prefer to Bridge the network so that the guest would be assigned a unique LAN address.
The host computer is a laptop. It is connected to the internet through a wireless router. I can successfully host a teamspeak server that accepts incoming traffic from the internet. The operating system that is installed is Windows Vista.
The network is set up as follows:
The host's LAN address is 192.168.1.50 and is connect to the Router which has an address of 192.168.1.1. I am using a Netgear WNDR3300v1 wireless router. The webserver itself would likely have the IP 192.168.1.2 in the circumstance that the network was bridged for the virtual machine. So the WAN Interface would be the modem my company has provided which has assiged the external IP 24.113.92.228. The modem is a cable modem, the brand is a motorola surfboard.
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Oct 19, 2009
I have to go through an ERP projects. "README" file to setup the software gives following instruction which I have attached with this thread.So, according to first step I copied the entire "dolibarr-2.6.1" folder in "/usr/local/apache2". But whenever I call the browser with address given in "README" file my browser gives the following error message : Code: Firefox can't establish a connection to the server at localhost.Please let me know how can I configure the Web Server so that I can use the software.
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Aug 4, 2010
How do I configure ssh on Debian server and client?
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Oct 4, 2010
I have configured Master and Slave DNS server in Red Hat Linux 4 Enterprise. I want to know about what is a Caching Nameserver and in which situation we use it? If there is a master and slave DNS server we can use cache name server as well ?
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Aug 2, 2011
when i m configuring ldap server on linux 6.0 for my college project with the script below :- problem is that DB_config.example is not available under /usr/share/doc/openldap-servers-2.4.23/
[ for query without SSL ]
# ldapme
# vim /etc/auto.master
[code]....
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Feb 25, 2010
I have installed Fedora 9,together with the DNS server.I tried to configure the /etc/named.conf and created my zone files in the /var/named directory.But its giving me errors that it cant find mydomain�s zone files.
How do I go about,or can u assist me with the full steps on configuring a DNS server on the Fedora9
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Jul 14, 2010
I have a domain name and I want to host it on my ISP.What my goal is is to have 2 nameservers:NS1.mydomain.com
NS2.mydomain.comI want to be able to put www.mydomain.com and have DNS do its thing. I want to use BIND to do this. This is a new realm for me, and i know exactly what I want to do, but I struggle putting it in words
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Jun 6, 2010
I am using the virtualhosts feature of Apache web server to host multiple domains on a single web-server. Is it possible to have different settings for php for different domains?
For eg:- I have mydomain1.com and mydomain2.com hosted on the same server. I want php scripts of mydomain1.com to connect to database but prevent database access for scripts of mydomain2.com. There are many php functions that I want to restrict for mydomain2.com.
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Apr 20, 2010
I have 3 virtual machines set up. 2 are servers and one is a client. On one of the servers I have installed apache, mysql, and php and mod_ssl. I can get to the web site on the server from my client system. I can even get to the info php site--the screen that shows everything about php (it's purplish!) I can also get to the secure https site. The one thing I can't do is get my table to display.I have set up a new user in mysql. I have granted that user all privileges. I have created a table on a new database in mysql. I then set up php code within html code But every time I try to go to my test.php site it only gives me the header. It obviously cannot find the table array. This is the code and someone already told me it looked right to them. So I am not sure what I am doing wrong.
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Jan 14, 2011
I'm trying to configure SSH for accessing with kerberos. I try to configure a SSO. The computer is joined to Active Directory. I can access with the user/pass from AD (using samba/winbind), but if I try to connect using kerberos, the error:
Server not found in kerberos database. The server is CentOS 5.5, but also tried with RHEL 5.5.
Configuration
Domain: net
Realm: TEST.NET
User: usertom
Server ssh: testul0001.test.net
Client ssh: testul0001.test.net (connect to the same computer)
Domain controler: testgc01.test.net .....
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Jun 23, 2010
I want to configure tls for our sendmail 8.14.x server so that it will attempt to connect to a remote server using tls, and then fall back to an insecure connection. The sendmail.mc file has the following line:
Code:
dnl DAEMON_OPTIONS(`Port=smtps, Name=TLSMTA, M=s')dnl
Does this configuration already have the server attempt to connect using tls first, and then fall back to an insecure connection? If not, what would the syntax be in order to accomplish this? Also, what is the best way to check to see how the connection is being made?
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Mar 16, 2010
How to configure SQUID proxy server in ubuntu 9.10 ?
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Jun 13, 2011
I recently installed Ubuntu 10.04.2 Server on a small desktop to use as a print server. During installation I marked the sSH, Print, and Samba services.I can ssh into it just fine and that's how I'm configuring it. I have a hp Deskjet F2210 connected to it.My end goal is to be able to use the scanner from my *buntu desktop and from a desktop running XP. All of these being connected via ethernet router.
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