I am working on a NFS server embedded on a PowerPC plateform (4650EX, 512Ram, 1 GB Ethernet) but i can't mount my exports folders from my client. Here are messages :
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I am working on a NFS server embedded on a PowerPC plateform (4650EX, 512Ram, 1 GB Ethernet)but i can't mount my exports folders from my client. Here are messages :
-- server side :
$ tail /var/log/message
Dec 11 23:35:45 canyonlands mountd[1345]: authenticated mount request from 147.138.27.17:620 for /mnt/ssd
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Right now i have a HP DL 180 Server with 130 Gb Hard Disk & 8 Gb ram after Raiding0+1. i want to configure Domain Controller Server for my office for 200 to 300 Users. what should the partition size must be mentioned in my 130 Gb Hard Disk, is that going to be Sufficient for ME ?
i am bit confused about /Usr /Var /Boot partitions, as i need to manage perfectly in 130 GB
if i go with 4 Gb swap and remaining for " / " is that will be fine ? should i need to specify partition sizes separately for / tmp /var / usr ..
I wanted to know how can I cross compile SMS SERVER TOOL for an embedded computer and make just one binary file for it or how can I change all of its default files places like its demon and object file and gather all of them to one directory to execute and use and run.let me explain it better for you : I have an embedded computer with Linux OS that its file system is read only and I can not add any file to /usr /lib and ..... and I can just mount a SD memory card to it and copy all of my programs to it and run them from there as you understand I have two choices to choose, first make one big binary file for each program that I am doing it now and it is not a suitable solution and the second is finding the way to change default place of shared object file of my program.now you tell me what can I do to solving this problem.
View 1 Replies View RelatedI'm trying to RMA a month old SSD, and they're giving me a hassle about it. The drive currently seems to work just fine, but I'm 95% sure that a few blocks went bad and corrupted some data about a week ago. I was able to mostly recover the data and correct for the bad blocks, but I don't really trust the drive anymore.
I'm running an up to date Debian Squeeze install with ext4 on this drive. My system started doing some bizarre things, to the point that it was unusable, so I rebooted it. As it was booting up, it complained about needing an fsck, which found dozens of non-trivial errors that it was mostly able to fix. It then proceeded to boot normally, except the drive mounted itself as read only (due to errors). Another fsck turned up a similar number of problems. This happened a couple of times before I ran fsck with '-c', which is supposed to scan for and work around bad blocks. That seemed to fix the problem, it hasn't given any more problems since then.
The manufacturer is refusing to RMA the drive unless it's completely unmountable right now this minute, saying that it was a one time problem that could have been caused by anything. Am I right in thinking that the problem has to have been with the drive if 'fsck -c' fixed it, or could something else be going on? If it was the drive, am I somehow being unreasonable in asking for a new one while the current one is "working"?
Currently have multiple small DNS-323 NAS-in-a-box that need to be replaced with a single storage server.
Since the setting is for an advanced home server (2-3 simultaneous clients max) that will hold movies and application/game ISO's, I was originally going to go with a simple RAID6 on freenas. As I learned about silent data corruption, and with a max of 3 simultaneous users, I don't see a need for a hardware raid processor. So I gathered that software RAIDZ (RAIDZ2) based on ZFS or BTRFS that prevent silent data corruption would be a better match (please correct me if I am wrong).
NEEDS: The needs (in addition to prevention of silent data corruption) are basically online capacity expansion (OCE), and 2+TB volumes (64bit LBA); with a preference for the ability to spin down idle drives. I'm going to make the assumption that any solution I go with will allow me to read/monitor actual SMART drive data.
STUMBLING BLOCK(S):
1. Would someone validate the (perhaps mistaken) assumption that since BTRFS is integrated into the latest Linux kernel, it is mature enough for NAS candidacy.
2. Please validate: Forward-compatibility of BTRFS has been stated (no need to reformat with subsequent BTRFS updates).
3. Am I missing any NAS software (open-source or otherwise) that would meet these requirements and provide a nice pretty graphical interface?
4. What software solution would you recommend? (btrfs on xxxxx? zfs-fuse? linux+xfs (+mdadm)? ..?)
5. What are my next steps?
Accumulated hardware for project:
SERVER: 3u chassis with 16hot swap trays. Tyan S5360G2NR i7520 mainboard. Single Intel 2.8Ghz CPU (dual-capable). 4GB ECC RAM (do i need more?). Dual hot-swappable 550W psu. CD-ROM
DRIVES: Eight 1.5Tb SATA drives, plus an additional four that are in-use in the DNS323 that I will migrate over using OCE. Four 750 SATA drives that are also in-use and can be migrated over via OCE. One 16Gb SATA SSD, intended for Boot OS and logs.
INTERFACE CARDS: Two 3Ware Escalade 9500S-8 8Port SATA RAID (PCI-X, 64bit) [can change these to something else].
UPS: 1500VA
I'm looking for a write one, read many file synchronization, file system or similar technique. In fact I want a to imitate a zfs_send/zfs_receive similar behaviour on Linux. My requirements are pure local (or in terms of distributed file systems: rack-aware) file handling with remote synchronization. Some random features/requirements I want to achieve are (I use the terms file and "file system" here interchangeable, as I don't care wheter I have to synchronize file based or use full file system supporting that):
Access on files from a specific host is pure local, i.e. the node has a full copy of a file, no parts are distributed. Read and write access is local, the remote side gets synchronized with write changes only Write changes on the remote side are non-blocking and asynchronous No need for concurrent file access, concurrent, distributed locking and so on Every file is changed by a single node only, other nodes have read access The file "owner", thus the node allowed to write files must be changeable Similar techniques (some as technology concept, not usable for me) exist, among those DRBD, MySQL Replication or even pure rsync.
I don't care whether I'm referring to a pure local solution (i.e. between two block devices) or a client/server mode. DRBD won't fit because its a peer to peer solution, I need to synchronize a lot of clients with a central storage through that way where DRBD just mirrors from peer to peer among two nodes and doesn't allow another node to take over the role of the primary node (i.e. node A is master, storage B secondary, I want to change to a thrid node C which becomes master and receives hence a full update from storage B.
Just as a guess, I'd make a local LVM volume on every node where write access happens. In the same time there exists a iSCSI target with multipath to a remote hosts which is shared with every node, again providing a clustered LVM. So I'd need to synchronize a local LVM volume with a remote LVM image. The question is just by which technique I could achieve that (i.e. as RAID 0, where every read and write goes to one node only and doesn't wait the other node to succeed). I could achieve this with rsync by a cyclic push to the remote host, but the problem is, that rsync isn't block based thus I'd need to synchronize every time the whole file, not only changes.
When do you know when to re-boot your server? I have Centos 5.6 As my remote web server running Direct Admin. I have also Centos 5.6 as a local back up server. With a KDE user interface so i can learn the graphical and command line. How ever when i query Yum for updates locally, i can see a nice extra icon next to the updates in KDE saying will require a reboot. But on my remote web server, how would i know if a Reboot would be required?
View 12 Replies View RelatedI am developing a device that will run Linux as its operating system.The device is a small form factor X86 device with a flash drive exposed as a SATA-device. So it is not very dissimilar from any other PC running Linux.For several good reasons I am building my own "distribution", instead of using an existing one.What confuses me is how mount/umount of the root file system is handled.I boot my kernel with the commandline "root=/dev/sda1 rw" which works fine. But everytime I do poweroff or reboot Busybox complained about no /etc/fstab, so I decided to build one.Should I have an entry for my root file system? It seems like this is shadowed by the rootfs anyway. I.e. if I have the fstab entry "/dev/sda1 / ext2 1 1" mount still reports rootfs on / type rootfs (rw)/dev/root on / type ext2 (rw,relatime,errors=continue)My questions are:Do I need to worry? Will the drive be correctly unmounted by the kernel on poweroff/reboot?If I want to perform file system checking on boot, can I do that without resorting to an initrd?
View 1 Replies View RelatedMy older motherboard is a MSI K7D Master which had two AMD Athlon 1800 MP's installed. My new motherboard is a HDAMA Rev G which has two AMD Opteron Socket 940 CPUs 2.4Ghz installed. When both chips are installed, Fedora will freeze when putting the system under load (i.e when transferring data). This has now happened to both the motherboards, once I remove the second CPU the system will run perfectly.
I think it may be a kernal problem as this also happens on other linux distributions. I have posted here for several reasons, a) to allow any other person searching for a fix a solution (all be it not a good solution), b) to request help on fixing this issue or request to who and where I should report this bug, c) to see if any other users are having the same issues. I should add that I once had the MSI mobo used in conjuntion with Windows Home Server which never had a problem when both chips were installed.
I have an HP proliant server n i am new to linux the problem i am facing is that when i start the system it turns ON normally but after the linux starting up options like when we select whether to start it normally or in failsafe mode after selecting one option out of the two it comes up with following messages on the screen and get stuck over there.
[messages]
I would have attached the snapshot i have taken with a camera but there is no option of attaching files overhere.
I have a unique setup on my hands..-local (LAN) dev system built on a via epia m6000 (uses the older via eden-samuel cpu). Latest kernels will not boot due to cpu issue.I'm running CentOS v3.9 for kernel compatibility and have managed to get my basic LAMP setup accomplished via yum but I'd like to run the curnet versions of everything while keeping the older kernel if possible.I'm considering setting up my yum repos to include v4 or v5 and use the yum --exclude kernel option.
View 4 Replies View RelatedI have many documents that indicate many different min requirements for drive memory. Will someone give me an idea for the following...Ubuntu 10.10 server running SSH and Samba what would be the memory requirements, recommended as opposed to min, for partitions as follows:
/ -- root
/home -- as a separate partition
/boot -- as a separate partition (do I really need a separate boot)
swap my RAM is 768mg so 1 gig should be good
I'm update Python , but founde problem root@server [~]# yum update There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: No module named yum
Please install a package which provides this module, or verify that the module is installed correctly.It's possible that the above module doesn't match the current version of Python, which is: 2.6.7 (r267:88850, Jun 7 2011, 12:25:26) [GCC 4.1.2 20080704 (Red Hat 4.1.2-50)] If you cannot solve this problem yourself, please go to the yum faq at: [URL]...
I have recently acquired a VA Linux 1220 Server 2x P3 866MHz 1GB RAM 80GB HDD. It's Totally blank (incl no OS) and looking for any newbie information that I might need to know to get started, including the OS version. Basically, as I said i'm totally new to this, We have Hosting Servers at work that I have been playing around with some vi commands etc.. And would like to study/learn at home...
View 1 Replies View RelatedI have a linux database server (ver 2.6.18-92.el5xen) which i want to configure for sending mails as and when some errors are written into some log files by an oracle process.when i just try to run this command mailx -s "test.it just does n't show any output and kind of hang.Pls tell me the step by step process for configuring the server so as to send mails from it. Also I am not aware if the required rpm are installed in the machine or not.
View 9 Replies View RelatedI want to access suse pc from redhat remotely.
i need a remote access tool so that i could access my branch Suse operating system pc through Internet. i am getting teamviewer for linux, it is installed properly but not executing.
I have a problem with vsftpd (latest version available, 2.1.0pre3) SSL. I've configured it to a nonstandard port, 65440, disabled connect_from_port_20 and run it as a normal user, from home directory. I can't use the SSL feature, every time I connect, it only reaches the login process. After logging in, I get the following error (when data transfer would start for LIST command):
522 SSL connection failed; session reuse required
My vsftpd.conf looks like this
Code:
local_enable=NO
write_enable=YES
secure_email_list_enable=YES
email_password_file=/home/stringz/vsftpd/logins
# local_umask=022
dirmessage_enable=NO
vsftpd_log_file=/dev/null
xferlog_file=/dev/null
xferlog_enable=NO
connect_from_port_20=NO
idle_session_timeout=3600
data_connection_timeout=120
run_as_launching_user=YES
anonymous_enable=YES
anon_mkdir_write_enable=YES
anon_other_write_enable=YES
anon_upload_enable=YES
anon_world_readable_only=NO
async_abor_enable=YES
ascii_upload_enable=YES
ascii_download_enable=YES
ftpd_banner=Welcome!
# You may specify an explicit list of local users to chroot() to their home
# directory. If chroot_local_user is YES, then this list becomes a list of
# users to NOT chroot().
# chroot_list_enable=YES
# (default follows)
# chroot_list_file=/etc/vsftpd.chroot_list
ls_recurse_enable=NO
listen=YES
listen_address=<myipaddress>
listen_port=65440
listen_ipv6=NO
pasv_enable=YES
pasv_min_port=65441
pasv_max_port=65480
# chroot_local_user=YES
ssl_enable=YES
allow_anon_ssl=YES
force_local_data_ssl=NO
force_local_logins_ssl=YES
ssl_tlsv1=YES
ssl_sslv2=NO
ssl_sslv3=NO
rsa_cert_file=/home/stringz/vsftpd/vsftpd.pem
The client side is a Total Commander 7.02, there hasn't been any problem with its SSL yet and this only occurs when trying to connect to my vsftpd.
I've been having issues with my ubuntu server (10.04 LTS) lately. Every once in a while, anywhere from 3 days to a month or more, the server will just disappear from the network. All manner of trying to reach it from the outside fails, even from the LAN. Since it's headless, this is kind of problematic. After a hard power down or reboot, the server will always come back online, but this is very annoying for a remotely administered server.
What should I look for when trying to determine why the server keeps going offline? I can't tell if there are any other issues like a hard lockup or anything, just that it is not on the network anymore when this happens.
In red hat linux server 6. I start up virtual manager and I get below error prompt.
Package required for KVM usage
The following packages are not installed
qemu-kvm
These are required to create KVM guests locally. Would you like to install them now. I press yes but the package cannot located ...
So, I have install the qemu-kvn-0.12.1.2.113.el6_0.8.src.rpm already.
I use command rpm -ivh XXX.rpm to install.
I have a government website hosted in third party hosting. but now they want to setup their own Ubuntu server. Now my Question is -
1. What hardware do I need? like -
A) SERVER
B) KVM Switch etc etc.. really i don't know how many hardware need to setup a server. Please provide me a list.
2. Does the standard Ubuntu Server installation DVD contains all the required software for Linux web hosting ?
The hardware part is very important. What's more hardware need to set up a server.
I have an external 3.5" USB 250Gb HDD which is showing symptoms of hardware problems (repeated /var/log/messages errors of "reset high speed USB device using ehci_hcd"). This was originally plugged in to my NSLU2 running Debian Etch. I have just installed Ubuntu Desktop 9.10 to a spare Pentium-3M laptop and was hoping to copy the contents of this HDD to a fresh drive. However, I cannot mount it even read-only; mount -o ro /dev/sde3 /mnt/disk fails, and the /var/log/messages error is "recovery required on readonly filesystem", "write access unavailable, cannot proceed". I cannot understand why mounting a disk read-only should require write access. Following advice I googled elsewhere, I tried running mke2fs -n /dev/sde3 to try to list the alternative superblocks - but once again I got the error that the device was read-only. How can I go about accessing the data on this disk?
View 11 Replies View RelatedI want to connect to a vpn server and I'm using debian 5.
I installed Kvpnc package but when I try to make a new profile I choose "Microsoft pptp" as vpn type and I receive the following message: the required daemons (pppd and pptpd) aren't availabale
Is there anyway to download required daemons in another computer and use them in my computer (I'm worried about dependencies)?
With so many filesystems available which one should I use to make backups? All I care about is reliability and stability. I don't care at all about portability.
View 8 Replies View RelatedI have an XFS filesystem (not my root filesystem) that is not mounting.
We had a power failure over the weekend. All but one of our XFS mounts is comming up. Its a large mount (2TB) and I am not seeing errors per se...
But after attempting to mount it, it has been 4 hours and all we see in either dmesg output or in the messages file from the kernel is:
Our mount process is dead and I don't see any disk i/o going on. Am I missing something here on this?
I rebooted the box once earlier and was able mount read-only with norecovery...
I tried xfs_check and it also produced a dead "xfs_df -i -p xfs_check -c check /dev/sdd1"
I am in the process of creating a kickstart configuration file for some RedHat 5.5 and Centos 5.5 servers (Production and test respectively).I have googled about a bit but I cannot find a good list of the bare minimum packages required for a command-line system.If anyone knows how I can trim this list down anymore it would be much appreciated. The aim of this kickstart.cfg is to get the system booted to a bare minimum required to install Chef (Server management software). Chef will then setup Apache, Ruby on rails environment etc.
All this server will need to do is, from a static IP, Host a Ruby on rails app, send emails, send data to a server on the web, accept ssh and occasionally and connect to a SMB/CIFS share This list was taken from the anaconda-ks.cfg file after a RedHat install of what I thought was a pretty minimal system onto a VM but I noticed that cups, the avahi daemonsand gam_server are installed and running which I do not believe are needed for a pure web server.I know that these types of questions are hard to answer without a complete knowledge of the operating environment and what "minimum" is in this case ("@core only? but I wanted yum damnit!")
@admin-tools
@base
@core
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Ah, the most dreaded SVN error of them all. It's not even showing up in my Apache logs, either, just on trying to commit.
When I try to add a file to the repository via the following command, I get the error:
Code:
add -N F:eetlemed-1.7workspace
ootClientsrccomeetlemedwebappdataContactInfo.as
A F:/beetlemed-1.7/workspace/rootClient/src/com/beetlemed/webapp/data/ContactInfo.as
commit -m "no more broken commits?" (24 paths specified)
code....
It seems that this error only shows up when I try to add a file to the repo, not when I try to update. I've already run chmod +rwx -R repository, so it should have all of the permissions it could possibly need. The only thing I don't know about is adding it to a group. I don't think my server has an apache group, so I wouldn't know where to start and what to do with that.
This problem happens from time to time, but I can't seem to shake it this time. I'm running SVN over HTTPS on Apache 2.x.
Are there any tools out there to scan, say our fileserver(20TB), to check for things that shouldn't be there like mp3s, videos, software crackers, etc?
View 2 Replies View Relatedwe have a data transfer network drive, shared via nfs and samba.But now I got the special demand to make any of the files read and wirteable, regardsless of the permissions they had before.With acl I get the right permissions (via default values) but the standard unix permissions overwrite this. e.g. when I have 644, it does not care that the group has write permissions)Does someone have an idea (except chmod via cronjob )
View 1 Replies View RelatedI wanted to know if it's posible to import filesystem quotas. And if so, how can I do it? I recently migrated a server, and presently the users don't have any quota limitations.
View 3 Replies View Related