I need to enable GFS for a shared storage file system, I need to share it to different ip's so that every one get syn data on that file system
ex : /data on 192.168.0.10
I need /data to be in GFS and need to share to 192.168.0.20 & 192.168.0.21
so that this two machines can have sync file system
/data is in shared storage
I'm not trying to setup a email server. ;) Firewall is set to disabled. SELinux is set to disabled.. How can i configure (which file?) the server to be able to send email out? When I try "mail -s testmail myemail@[URL]" and enter some text and then CTRL+D.. and return, I get command prompt again..
[Code]...
I have a weird performance issue with a centos 5 running a nfs server and a rh8 client. I think the fact that it is rh8 client should be downplayed. It is just that with rh8 client the performance degradation seems more clear. See test details below OS in server is Centos 5 x86_64 kernel 2.6.18-92.1.22.el5
1Gb connection between machines File to test over NFS is a 1GB file. First of all I wanted to measure how the network alone performs while using NFS. So in the server side I run a "cat" command on the 1GB file to /dev/null. Please note that the disk read speed is about 98MBs. At this point the file system has the 1GB file cached in memory. In the client side a "cat" on the same file gives me a speed of about 113MBs. It seems then that the bottleneck in this instance is the network and it is very close to nominal speed. So the network performance is really good. (BTW I know that the server got that file from cache because a vmstat or iostat shows no disk activity.)
The second test is reading from disk with no caching involve. In the server I flushed the 1GB file from the memory. For instance by reading another 5GB file and I repeat the same thing as above in the client (a cat on the 1GB file). Now, the server has to go to disk.(vmstat or iostat shows the disk activity). However the performance, now, is about 20MBs, I was expecting something closer so 90MBs. (since the reading speed in the server in the first test showed 98MBs).
This second test was repeated for ext2, ext3, xfs with no significant differences. A similar test using a RH8 NFS server and client gets me close to 60MBs for a 1GB file not cache by the file system in the serverSince network speeds and disk read speeds are not the bottlenecks ... what or where is the limiting factor then?
What is the correct way to allow two servers to use the same file system on a SAN using iSCSI?Is it GFS on the two servers?
View 3 Replies View RelatedI have configured a "Syslog" server on /var directory as a separate ext3 partition - to receive the logs and events from the clients & the firewall as well. The directory needs to grow dynamically as the logs are populated. Is there a way i can make the filesystem grow dynamically as and when the directory is full.
View 6 Replies View RelatedI have tried to install and configure Hudson in centos distro version 5.Installed hudson with tomcat by deploying .war files.after configuration was completed, builded a project.It displayed build was completed successfully.but I was not able to download output of build.
So I rechecked configuration,found that i havent set artifact file pattern to archive. how to set artifact file pattern and how to get build output. how to manage hudson by using configure system and configure options.what is the correct way to configure public hudson?.
Centos 5.3 includes Ext4 and improved support for encrypted file systems but it appears to be aimed at laptop/desktop systems, in that a password must be entered at boot time.
Is it possible to have a server with an encrypted root file system boot up without entering a password?
Mandos will do it...
http://wiki.fukt.bsnet.se/wiki/Mandos
...by serving up the password from another server...
http://packages.debian.org/squeeze/mandos
...to a client loaded into the initial RAM disk environment...
http://packages.debian.org/squeeze/mandos-client
...but it's not available on CentOS, and is only in Debian unstable.
Is there a similar (or any) solution for CentOS?
In particular, I'm envisaging encrypted virtual machines being served passwords from their virtual host.
Alternatively, the data that *really* needs to be protected could be encrypted while the system core remains unencrypted. But then the keys to decrypt the file system must be stored in the unencrypted portion, so this is not an effective method.
I will be relocating to a permanent residence sometime in the next year or two. I've recently begun thinking about the best way to implement a home-based network. It occurred to me that the most elegant solution might be the use of VM technology to eliminate as much hardware and wiring as possible.My thinking is this: Install a multi-core system and configure it to run several VMs, one each for a firewall, a caching proxy server, a mail server, a web server. Additionally, I would like to run 2-4 VMs as remote (RDP)workstations, using diskless workstations to boot the VMs over powerline ethernet.The latest powerline technology (available later this year) will allow multiple devices on a residential circuit operating at near gigabit speed, just like legacy wired networks.
In theory, the above would allow me to consolidate everything but the disklessworkstations on a single server and eliminate all wired (and wireless) connections except the broadband connection to the Internet and the cabling to the nearest power outlets. It appears technically possible, but I'm not sure about the various virtual connections among VMs. In theory, each VM should be able to communicate with the other as if it was on the same network via the server data bus, but what about setting up firewall zones? Any internal I/O bandwidth bottlenecks? Any other potential "gotchas", caveats, issues? (Other than the obvious requirement of having enough CPU and RAM).Any thoughts or observations welcome, especially if they are from real world experience in a VM environment. BTW--in case you're wondering why I'm posting here, it's because I run Debian on all my workstations/servers (running VirtualBox as a VM for Windows XP on one workstation).
i have been trying to complete the following project1) Configure a FTP server where we can upload and download files.........2) server must run at 9 pm & stop at 9 am automatically ............although the first task was easy ,i have no idea how to accomplish the 2nd task(not to mention I'm a new user)
View 5 Replies View RelatedI have been trying to configure webalizer on a centOS 5.5 system.I did the yum install and I found this helpful link...[URL]..However when I try to change the dir it puts the info into, it keeps giving me an error cannot cd to the directory. I changed the /etc/webalizer.conf file as described in the above article and try to run it manually same results.
/etc/cron.daily/00webalizer Error: Can't change directory to /home/webalizer/ When I put the original dir back in the path it writes to /var/www not /var/www/output like it should. I even tried a local /var/wwww/output dir. Then I tried a link to /home/webalizer/output (a dir I created) and same results.(with orginal .cfg in place) I go to my www page remote or on the local network I get page not found errors. http://mysite.com/webalize or 192.168.1.80/webalizer page not found.
In summary.
1. Why wont the /etc/webalizer.cf file allow me to change the location of the files?
2. How do I display the www page to view the data?
3. How can I secure the www page so only I can view the data.
just saw this in my email too :
header info deleted...
/etc/cron.daily/00webalizer:
Error: Can't change directory to /home/webalizer
/etc/cron.daily/logrotate:
Current logging target is:
`- SYSLOG
edit: i should also mention SeLinux is in permissive mode not enforcing while i am testing this.
I've got CentOS 5.4 without access to internet (install all from DVD).When I try ti run Eclipse via remote desktop I've got error:
Quote:(.:30196): GLib-GObject-WARNING **: invalid (NULL) pointer instance
(.:30196): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
[code]....
I need to use MFix a open source program Therefore, because i don't have Linux on my computer i use Cygwin_NT-5.1 the latest version. From the help desk they told me that i need to configure a file to fit with my system. I just changed operation system to CYGWIN_NT-6.0 (instead of the command uname -s ; set opsys=$1. this was the only way i had an idea to do it, so i tell the programm that my sytem is a 6.0 but it isn't
then i wanted to install mfix and it gives me the error
../../model/make_mfix: line 119: syntax error near unexpected token '('
../../model/make_mfix: line 119: 'echo -n "Do you need debug version? (y/n) [no] "'
by looking in he make_mfix file it looks like this echo -n "Do you need debug version? (y/n) [no] "
I have been able to find enough information that I need to enable 'time-udp' in /etc/xinetd.d/ But there isn't an entry for time-udp. How do I enable time-udp (Time of Day server) on a Red Hat system? It's RHEL 5.6 64bit.
View 1 Replies View RelatedHow to configure linux vpn server for windows clients & roadwarriors connection?
View 4 Replies View RelatedI am trying to configure a system to boot Windows XP, CentOS 4 and RHEL5. I have one hard drive that contains both Windows XP and CentOS 4, and a separate drive that contains RHEL5. Until recently, I only had one SATA cable, so I could only connect one drive at a time. Under this configuration, everything works fine. When the RHEL5 drive is connected, I can boot into it. When the Windows/CentOS drive is connected, I can dual-boot into either OS. (GRUB was configured on this drive automatically when I installed CentOS into a new partition.)
Opening the box and moving the SATA cable is a lot of trouble, so I finally got a second SATA cable and enabled both SATA0 and SATA1 in the BIOS. I currently have the Windows/Centos drive as the primary, and I can still boot into both Windows/Centos. Now, I want to add RHEL5 to menu, but I can't find the file GRUB is using to present its menu at startup.
I have configured GRUB before on other systems, but I just know the very basics, such as where the grub.conf file should be. So, I spent a whole day reading advice online and asking friends who might have experience with these issues. Here are the steps I have taken so far:
I confirmed there is no /boot/grub directory, and /etc/grub.conf is a broken soft-link to /boot/grub/grub.conf. I did a find for grub.conf, which found nothing. I did a find for menu.lst, which found one item -- an example GRUB config file in /usr/share/doc/grub-0.95. I noticed that when CentOS boots, I see the GRUB commands printed to the screen, the first of which is:
root (hd0,2)
So, I did a grep -R "(hd0" * at the / directory, which also found only one item -- the example menu.lst file in /usr/share/doc/grub-0.95. I discovered that I can go to the command line grub from the grub menu and do:
cat (hd0,2)/grub/grub.conf
The cat command returns a printout of the grub configuration the system is obviously using. I didn't create this file, but the titles are identical to what I see in the GRUB menu, the default boot is Windows, and the timeout is very short. This must be the file. It looks like:
default=2
timeout=5
splashimage=(hd0,2)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.9-89.ELsmp)
[Code].....
I've also tried making the RHEL5 drive the primary drive. In that case, I can modify the existing /boot/grub/grub.conf file and see my changes at the GRUB boot menu. However, I can't get Windows to boot in this configuration. I've done a lot of google searching on the topic and added map commands to make Windows think it is on the primary drive. But, I'm still unsuccessful on this front as well. I think I'm closer to solving the problem with Windows/CentOS as the primary. However, if you think I will have more success with RHEL5 as the primary drive, I can provide more details as to my current grub.conf on that drive in a later post.
I could not able to configure the default gateway ip address onto the system. i use the route command (" route add default gw 192.xxx.xxx.xxx eth0 ") to add a default gateway onto the routing table but it is "disappear" in the routing table when i had restart the service network.
View 3 Replies View Relatedi need to configure postfix on centos to relay email from the internet to the Exchange Server and i also need that emails sent from the exchange within the same domain be sent to postfix then resent to exchange because i have spamassassin and clamav installed on centos to filter all incoming and outgoing mails ...
View 1 Replies View RelatedI tried to install php from source file on centos server and i got the error as # ./configure --with-apxs2=/usr/local/packages/apache/bin/apxs --with-mysql --prefix=/usr/local/packages/apache/php --enable-force-cgi-redirect --disable-cgi --with-zlib --with-gettext --with-gdbm
checking for specified location of the MySQL UNIX socket... no checking for MySQL UNIX socket location... /var/lib/mysql/mysql.sock checking for mysql_close in -lmysqlclient... no checking for mysql_error in -lmysqlclient... no configure: error: mysql configure failed. Please check config.log for more information.
I have one server at home, connected through a router that gives me a static IP:192.168.1.2 - My PC192.168.1.3 - CentOS serverI enabled the port 80 into router forwarding system and I can connect properly to CentOS server, using the IP my internet provider gives me. My router automatically forwards a changed IP to my dyndns.com account so I can also access the server through a domain name (I pay to have it linked to one of my domains).My next step is to configure the mail server (dovecot) , so I can send emails from my local server(192.168.1.3).I was wondering if anyone has any tutorial links or tips to have the mail server configured through a home internet provider + home router.
View 5 Replies View Relatedwhat is configure option of Mysql server from Centos repo? I mean configuration option used before compilation.
View 1 Replies View Relatedi'm teacher and have been assigned to take care a small computer lab in my school.in my computer lab there is a centos box with 2 network cards, switches and computers.at this moment all the computer can access the internet directly without connected to the router or server..(bypassing the centos box).so now i would like to make my life more " difficult" where i want all the computers access internet through my centos box so that i could have a better internet usage management.
I've been reading some forum and even centos document regarding establish networking but it seem difficult for me to understand all the terms and jargon overnight.I also have been try to configure the 2 nic using the "trial and errors" approach but no luck..i'm really hoping that someone could guide me so that i could configure the 2 nic correctly hence my centosbox could be more beneficial..below is the scheme how my network will be..internet------>modem--------->centosbox--------->switches------->computers(eth0)(eth1
How to set global alias for all user
View 3 Replies View RelatedHow to Configure VNC Server In CentOS 5-5;
View 1 Replies View RelatedI have centOS 5 server & have configure web server. I want to this webserver share on my network. How to configure domain.
View 8 Replies View RelatedI have centos 5.3. I have two h/d 1st h/d used as primary and backup of reqd things of first h/d is copied into 2nd h/d. I want to configure mirroring in this server how to configure this, raid 1 is ok or not.
View 1 Replies View Relatedhow to configure syslog server in centos?
View 3 Replies View RelatedI'M trying to configure SVN in CentOS 5 without Apache, the connection should be possible with some SVNClient like tortoisesvn or another.
Following this guide i proceeded:
yum install subversion
useradd -d /home/svnroot -c subversion svn
passwd svn
svnadmin create /home/svnroot/proyecto_1
pico /etc/csf/csf.conf (enabled ports and restart with csf -r)
[Code].....
how to connect to the repository from my PC?
I don't know how to do it
I understand that this svn are running with svnserve but i don't know the way to connect from my PC with a svnclient, like rapidsvn or another.
I'm writing a phone app for Android that connects to a bluetooth RFCOMM device in my car. My phone app talks AT commands with it. For development work, I often need to communicate with the device to try different commands and things.
My neighbors are starting to think I'm weird because I sit in my car for hours on end with my laptop screen shining on my face, typing away like a script kiddie.
I'd much rather configure one of my many Linux servers to act as a bluetooth RFCOMM device and allow me to connect to it (indoors, while I sit on my couch).
I imagine I have to start with something like
sdptool add SP
But then what?
I'm perfectly happy writing a perl app to handle the I/O, but I just don't know how to make the bluez stack accept connections and subsequently pipe that stream to a perl app.
Can some one help me to configure vsftpd with Virtual and System user
View 37 Replies View Relatedi have a requirment for giving my ip address a domain name.
can i esteblish a server as dns provider so than i can give a domain name for my own ip address.
i want to give it public not in local network.