Can someone recommend piece parts construct a reliable green server?
I am thinking:
-Case with hot swapable drives, and energy efficient power supply
-SSD harddrive for 5900 RPM drive
-low power CPU, but one with a decent amount of power, IE. 2.0ghz dual core or better.
I'm still a but confused about the standard way of removing it for left-associative operators: [URL] Especially about how to construct an AST from it by executing a peice of code for every nonterminal matched. And I'm still not totally convinced that it will be left-associative, I just barely understand it. Also, how would you remove left-recursion for something like this:
Code:
expr ::= expr "(" param_list ")"
| other stuff...?
I'm having issues getting apache to respond to requests outside of my local LAN. If I goto my server [URL].. it says connecting... but never finishes and returns anything. I'm using Ubuntu Server 10.10.
a) The DNS is working fine. It's pointed to my cable modem's IP and ping responds fine.
b) The apache server is setup and is working locally. In fact, if I use w3m and goto [URL]..I reach the test page perfectly. I can't figure out where the missing piece is to close this gap. Here are some config files to illustrate my setup:
[Code]...
I have been running a fedora server without issues for many years and recently updated to FC12. It turned out that there is a bug in OpenSSL in FC12 that caused me a lot of problems and I had to build apache, mod_ssl and OpenSSL from source to get it working.I'm now looking at migrating to another distribution becasue Fedora is not appropriate for a production server environment in a growing company.
What I want to know is what is the most reliable distribution with regards automatic updates (bug free that is)? I'm comparing RedHat, Ubuntu LTS, Debian, etc. at the moment. Is there any report that looks at this topic?I'd expect RedHat would have the best, but I also have to take cost into account as it is the only platform that you have to pay for these updates.I read this but it seems to quickly move away from the "bug-free" question initially asked.
how to setup a secure and reliable server, i have three ubuntu 10.10 servers a Dell PowerEdge 850,1850 and 2850 which has a Dell PowerVault 220s attached to it.The Dell PE850 Server Consists of:
Intel Pentium D 3.0GHz
4 GB RAM
Eventually 2x250GB Sata Hard Drives
The Dell PE850 Server Consists of:
2xIntel Xeon Processors 3.4GHz
4 GB RAM
2x76GB SCSI Hard Drives RAID 1
The Dell PE850 Server Consists of:
2xIntel Dual Core Processors 2.8GHz
4 GB RAM
6x76GB SCSI Hard Drives RAID 5 (pretty sure)
Dell PowerVault 220s
I would like to setup a reliable webserver, mail server, DNS and Dynamic DNS, DHCP, SQL, FTP, Samba (with Roaming Profiles), PXE Boot Server.I know how to setup most of the server modules, i would just like to know the best way to do it tho. I also want to no how to setup the secuity of the system correctly, and setup and partition up my hard disks to allow for the best reliabilty, even when a server crashes.I would like to now how to set these servers up from start to finish in a sence.
I am completely new to Ubuntu so please make your answers really simple ! I want to set up a mail server for a home network and have been suggested I use the Ubuntu solutions. I am fairly proficient with Windows programs and even construct databases but I am a complete novice when it comes to command line instructions. Yes, I know I have been spoon fed!
I have been told that it is possible to install Server programs from the Desktop version and that they provide a GUI in most cases. Is that so? I have the desktop version running and up to date but I am unsure what to do next. Starting the Server ISO CD from Desktop seemed logical but when I did I was not sure if it was correct and backed out. I have also read a thread on this forum that suggests the use of Zimbra as a Mail Server, it sounded like my kind of solution so I think I would like to try that.
One last factor. I have an existing P2P network (2 Vista, 1 Mac Book and this Ub' desktop/server) running already which uses the Router for DNS. I suspect I am going to have to do things in a certain order if I am not going to go backwards and ruin the families email and surfing!
XEN-server will be with 2 virtual OS:
dom1 - opensuse11.3 (x86) as LTSP server+squid+postfix+OpenOffice+FF
dom2 - opensuse11.3(x86) as WINE server for running windows application
Which type I/O prefer? Server for XEN use x64 or X86? about WS (without HD. will be use LTSP)?
I am trying to consolidate my servers for a small office (less than 50 computers) and need file sharing/crm or erp database/backup/ftp/firewall/vpn etc). I was going to use endian but that seems to want to run on it's own machine. I was going to run endian in Sun's virtualbox. While researching I have found both guarddog and Lutelwall should work within Ubuntu (no virtual machine needed).
1. Is there a reason to use Endian over Lutelwall or Guarddog?
2. Is there any reason NOT to run a firewall within a VM on the server?
3. Should I just scrap the whole idea and run a router flashed with dd-wrt or tomato
I am wanting to do some experimenting with some virtual machines as well as get to know some of the other distros out there.
I was just wondering if I were to construct a VM on VirtualBox, and then sometime down the road uninstall it when finished. What would be the best way to go about uninstalling as far as completely restoring the space and partition that was being used back to my main partition?
Does Virtualbox automatically do that for you?
I have a ML350 tha will not boot up. I noticed that my 1st drive of 5 is out. We ordered a new hot swap 72gb SAS drive and replaced it. When I boot the computer up it flashes green and I was wondering how long it takes to rebuild typically.
View 1 Replies View RelatedI have my own internal bind9 server, for my local domain, and I forward internal requests for public domains to OpenDNS servers. This server is not in a DMZ, but is instead behind an dynamic NAT. I do not accept queries from the public network, only responses. I understand that DNS is primarilly a UDP protocol, so it can't pass through a stateful/nat. without a firewall allow.
I've done a little reading and learned that bind9 does not run 53 <-> 53 anymore (is now >1024 <-> 53), and modified my config so it works like bind4 did, but I am concerned that this makes me less secure. additionally, I'd really rather not have a completely open 53 rule, but it seems that if I constrain 53 traffic to my known forwarders, it interfers with some of my network services like transmission. so, what firewall rules would you guys recommend for recieving forwarded DNS query responses to my server?
I am trying to construct a script to use with pacman so I can stream line the process for my wife who is not as command line savy. The script below does not execute the second case statement however the same line works fine in the shell which I launched the script from.
Quote:
#! /bin/bash
2 # -- > Pacman GUI Attempt
3 priv=$(zenity --entry --text "Enter Sudo/Root Password" )
[code]....
var param = function() { <whatever> } ;What exactly does the above MEAN, and why have they included this in the language this way?
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Can I try out redhat clustering in vmware with vm machine?
I am trying to construct a quick regex that will search for six lines of text without a clear line break between them. It only needs to search, not replace, as I will be using in gEdit (with regex plugin) anyway.
It's for editing subtitle files. The video player I will be using them on can only cope with 3-line subtitles, so I just need to edit any in the srt file that contain four or more. There won't be many so I can do it manually. For example:
26
00:01:47,357 --> 00:01:49,359
a motivated business
professional with
clearly defined goals.
[Code].....
but .* seems to mean "any character, or none", so that doesn't work. My experience of regular expressions is limited, but I do know they are very powerful when used correctly!
Just installed Debian 5 Lenny on my PC and found myself in front of strange problem: 3/4 of my screen is filled by graphics on default, i mean 1/4 of screen is just GREY on logon screen, and then when GNOME starts i got the lower pannel on the bottom of 3/4 of screen, but suddenly i can take it and put it on the bottom, like it should be.
same stuff with maximizng the windows. when i maximize by just pressing one of those right-top buttons - it just fills 3/4 of screen. but if i maximize it by hands at first and THEN press the button - everything feels great.
something inside me says that i should post xorg.conf
[Code].....
We have the need to install an older Linux distribution (Suse 10) on a brand new laptop. The kernel that comes with Suse 10 doesn't have new enough drivers for the NIC and the drive controller. We've been able to find the source code for the NIC and build a working NIC kernel module however, we can not find the source code for the drive controller outside the kernel tree. Newer kernels see the drive fine; the controller is the Intel ATA_PIIX. Its included in the kernel, the hardware we have it just newer than the version in the old suse 10 kernel supports. I've crawled all over the intel site looking for the code outside the kernel source and have been unable to do so. Is it possible to lift the code from a newer kernel source tree? Is it available for download anywhere?
Edit: (from a comment below) SLED-10-SP2-x86 is the OS. The installation of these systems in an automated process, trying to change the process to include a VM (if we had the memory) or install a different base OS; while doable- can't be done in the time allowed. To get through process development, testing, UAT, staging and deployment takes much longer than the time we have. The old laptop had this same issue and the fix by my predecessor was building the NIC and drive modules by hand. We need to simply update those modules for this new laptop
So, I usually write/find a test case generator for any code that I write. This type of code generally leads to some file output. To be thorough, I try and generate many different files to test my code on.
Say the command is like this:
Is there a way to automate this for many different values of the parameters and generate many different files?
I tried:
I wasn't able to use the $i in the filename, and without it the command gave me no errors, but did nothing else either. I know the Unix command line is very powerful, and I have a feeling that this should be possible, but I just don't know how to do it.
I use Skype on my computer at work for IMs, I don't even try to use it for voice or video calls, but I constantly have problems with it.It seems like what's happening is a backend part of the program keeps freezing. The UI is responsive, but I'll notice when I try to send messages, I'll get a 'caution' icon next to them with a tooltip reading "Your message has not been delivered". If I try to quit Skype, it hangs and I have to kill -9 it.So my question is, is there a more reliable way to use Skype in Ubuntu, maybe a different program than the official Skype client? Remember, I only care about text chat.
View 4 Replies View RelatedAny suggestions?
View 2 Replies View RelatedSince a few days all of my computers (3) running Ubuntu 9.10 report on startup that my external drive has "lots of bad sectors".I have checked this disk on Windows XP with chkdsk and with the SeaTools diagnostic tool dowloaded from Seagate. Both report no problems.Does anyone else suspect these Ubuntu "bad sector" warnings are unreliable?
View 9 Replies View RelatedI installed ubuntu server 10.04 32-bit and I installed XRDP so I can connect to it using RDP sessions. I was wondering if there is a better alternative to it. I have the following issues with it: 1. When I connect to the server locally using rdp it works just fine the first time. Then when I close the session I cannot connect to it again (it says connection timed out). Then if I uninstall then reinstall it will work again for another time then do the same thing. 2. I receive a protocol error when using Windows 7 or RDP version 6.1.7600 (Newest RDP version)
View 9 Replies View RelatedI have a configuration file for a network device(2100 lines). This device is configurable only over console line. If I copy chunks of those lines into terminal(I use minicom), there will be mistakes (sometimes some characters missing, space characters added etc). Hardware flow control and software flow control doesn't help either. I tried with cu utility, but same issues appeared. There will be mistakes even if I copy in ~100 line parts. What causes those missing/added characters? How to avoid those?
View 9 Replies View RelatedLooking for the latest sources for s/key, which is apparently now called OPIE. The root site for this appears to be on [URL].. but that is off the air. Anybody know what the current version is, and reasonably trustable mirror that carries opie?
View 4 Replies View RelatedI am looking for a Backup Tool running well on Fedora 12. GUI or command line are both fine but it should be easy to use yet transparent in case of an error. Also not only creating but using it to restore the system should be easy to do. I would like to save on a different partition AND burn it on DVD and it should be as small as possible.
View 10 Replies View RelatedIs gscan2pdf a reliable and good package now?My text scans are washed out and hard to read. And when I make setting adjustments the program freezes and needs to be restarted. Is there package from synaptic adequete or should I get an rpm version or what?
View 1 Replies View RelatedDoes anyone know how I can get a good reliable theme for openSUSE 11.2, that which is easy to install (I have little experience)?
View 3 Replies View RelatedI'm looking for an inexpensive but reliable web hosting service. Have been using Byet, but they have yet to successfully renew the subscription, so am in the market for another service. It doesn't need to have great tech support, just reliably keep the site up. cpanel, of course, is a plus.
View 1 Replies View RelatedFedora 10 (dual boot w/ XP) on Dell Optiplex with a Dell wirelessntennaI am on a university campus with campus-wide wifi network (so no router). I have a wireless HP printer that I want to be able to print to using an ad-hoc connection. The wireless antenna, networking, and wireless printing are all working in Windows XP (so hardware is OK). However, on the linux side, the wifi is really really finicky.
When I first boot up to fedora, it usually connects no problem to the campus-wide wifi network. If I try to switch to the ad-hoc printer network (which it sees), will not connect and, furthermore, it will no longer connect to the campus-wide network (and sometimes it doesn't "see" this network at all). It seems that restarting the Network Manager service sometimes helps to reconnect to the campus-wide network, but not always and I can't connect to the ad-hoc regardlessNOTE: I'm just barely a linux user, and I didn't set up my system - don't assume that I did anything that would be common sense and, if you can, walk me through your suggestions.
I'm wanting to create a one-time snapshot archive of all my data in case something catastrophic ever happens to my main hard drive and my backup drive. I should add that I update my main backup regularly, which means that I wouldn't notice any creeping data corruption problems until it's too late...which is another reason a one-time snapshot is so important.Since I'm archiving a snapshot of all of my data at once, only a hard drive is big enough to handle the job. (I'll copy a small fraction - the truly 100% irreplaceable stuff - to DVD-R's too, but that doesn't mean I particularly want to lose any of the other stuff either.) Unfortunately, this means my storage medium doesn't inherently have any CRC's, error correction/redundancy bits, etc. built into it like data DVD's might.
So: What archive format would you suggest using for maximum reliability and resistance to corruption?My main concern is making sure that I can still open the archive and extract surviving files even if some of the bits (or the entirety of other files) go corrupt. This is my last-ditch fallback archive, so if I ever need to use it, I really, really don't want to get a message saying the archive is corrupt and cannot be opened at all! Because of that, it's important that the individual files and folders are compressed separately from each other...if at all. I don't care about the compression ratio, and I'd even be happy if the archive was 150% the size of my data thanks to a gigantic recovery record. I also care about CRC's and such, since I'll want to know which files/folders/etc. are corrupt vs. which ones are still intact.