Ubuntu :: Looking For Official IO Tuning Guide?
Jul 16, 2010We need an official IO tuning guide for ubuntu similar to the one given here [URL].
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Ubuntu Multimedia :: Fine Tuning S Video / ATI On 9.10
Apr 14, 2010Essentially, what I am attempting to do is set up an older PC with a Radeon 9600 video card chipset in it with xubuntu 9.10. I would like to attach this PC to my rear projection tv (Sony KP-48S75) via an S-video cable and use this TV as the primary and only monitor for the system. At one point, I had Ubuntu 8.04 hacked onto this same hardware fulfilling this role decently. However, due to some carelessness on my part, the system became unstable and I decided to start anew (random crashes, lots of X freezes, dependency issues, screwing too much with my sources.list and so on). So, that said, I installed Xubuntu 9.10 on the PC and had it hooked up to both an LCD monitor and the TV via S-video. Upon boot, both outputs worked, though X only rendered on the LCD and not the TV. Thus, I dug and researched and found that by putting a bunch of xrandr commands into my gdm start script I could finagle the TV into displaying my output, mostly.
The commands I used to get the S-video out work (and, therefore, pasted into my /etc/gdm/Init/Default script) follow:
Code:
xrandr --output S-video --set load_detection 1
xrandr --output S-video --set tv_standard ntsc
xrandr --output S-video --set tv_horizontal_position -2
xrandr --addmode S-video 800x600
xrandr --output S-video --mode 800x600
xrandr --output S-video --rate 60
xrandr --output VGA-0 --off
You'll notice I do a few things in those commands. First, I set load_detection to 1 in hopes of enabling automatic S-video connection detection (this isn't working). The next interesting bit is my commanding the horizontal position. The reason I had to do this is, because, upon getting the S-video output to render, the picture rendered to the right-hand side of the screen, deprecating the furthermost bits (for instance, I cannot see the shutdown icon in the upper right hand corner). Setting the horizontal position to -2 allowed me to shift the display to the left a bit, but, to my surprise, the right hand side still deprecates and I am just left with a black column on the right hand side.
Question 2 has to do with the screen indexing. If I run a xrandr command with no options, I see VGA-0 indexed as Screen 0. I also see the S-video listed as disabled (even though I see it rendering on the TV right in front of me). Finally, I notice that, under the VGA-0 section, there is a screen size listed, as well as several resolution modes with many parameters following them (like 800x600 72.2*+ 75.0 .... some other stuff). However, under the S-video section all I see is one mode with one small bit after it (800x600 72.2*). This smacks of suspicion to me and makes me think it might be related to the right side of my screen being deprecated. My wager is that I need to tweak some modelines in the S-video output so that it is more in sync.
However, I do not know the syntax for modeline editing and, since the S-video screen isn't even detected, I am not sure I really can edit these options. Does anyone know why my S-video output would continue to be listed as disabled even when its running? Furthermore, can anyone tell me why no screen index is given to the S-video output (I only see screen 0 attached to VGA-0, no screen 1 for S-video)? I think I need the screen indexed properly in order to use the xvattr command later in order to allow xv overlays to function on the proper screen. Finally, I do have a xorg.conf file loaded in /etc/X11 that is mostly hacked together stuff I used trying to get this to work in the first place. Would this conflict with the xrandr setup? Which options override which?
Ubuntu Servers :: Fine Tuning Of ACL Using Samba
Oct 1, 2010I was so sure it must be easy to set up the file permissions like I want, but obviously it isn't. Here is what I want to have: I have a samba fileserver (only Windows clients connecting) with a common share. Everybody is supposed to be able to put files on the share, but no one should be able to delete files which do not belong to oneself. I want several users to put files in a common directory, so they need write access to the directory, right?
But all the same they should not be able to delete files from others. So they are not allowed to have write access to the directory, right? It all works fine with modifying etc. but still I can delete files I am not supposed to do. I learned already that permission to delete is bound to the permissions of the containing folder and that sticky bits might help. But either they don't or I didn't get it right until now.
Ubuntu :: Intel GMA G41/43 Video Driver Tuning?
Feb 24, 2011I have a Asus 54G43-Pro mobo with Intel GMA G43 video chip on it. It works fine in Ubuntu and using the same display with the same settings, under Maverick in comparison with Lucid, the video is a little more sharp and with more contrast. I have dual boot with Windows and in Windows it is even less sharp and contrast.
In Windows I can tune the sharpness, contrast, etc but I was not able to find a simlar features in Ubuntu. I have checked the Synaptic and even installed some Intel GMA files but I still have no access on tuning the video driver. Is this possible in Ubuntu and possible to be hidden somewhere or I can just forget about it?
Ubuntu Networking :: Ralink .dat File Fine Tuning ?
Feb 12, 2011Ralink's drivers for wireless adapters [url] with .dat-file to configure default properties of used WiFi adapter (at my case - RT2870.dat).
Example is below.
I'd want to fine tune adapters (I have two of them) to get maximum performance for streams between two WiFi clients connected to my router (JWNR2000 at my case).
At the moment I have changed WirelessMode=6 to force 802.11n mode (and it does work). Speed between WiFi-clients is about 3MB/s now. I want more How to?
Code:
Server :: How To Do Squid Proxy Tuning
Jan 20, 2011we having more than 5000 users and will have 7 squid proxy servers with high end configuration upto 4gb ram n 320*5 HD in rhel4&5 most of them complaining that at peak hours their browsing speed is slow but we are having 1gbpgs link at peak hours i.e when established connections r flowing more than 550 browsing gets slow how to do fine tuning are squid is only responsible to access upto 600 connections
View 2 Replies View RelatedUbuntu :: Expert Who Can Develop Installation Script To Get Fine-tuning
Mar 28, 2011As an owner of the HP Touchsmart TM2T 2100 CTO I had to search on the internet to fine tune Ubuntu Netbook Remix, like auto-rotate.I am a Linux noob.Is there an expert who can develop an installation script to get the fine-tuning done by executing that script?I am thinking about installing auto-rotate, maybe fixing the ATI-card, multitouch,I know multitouch works out of the box, but I red some drivers can be updated to get the latest gestures and so on.
As Linux user who is not familiar knowing what he really is doing, such a script can be handy. It also helps new TM2T owners to work fast with the best OS there is: Ubuntu!
Fedora :: F13 - Fine Tuning Desktop Effects?
Oct 27, 2010How to speed up the menu "fade" (or get rid of it all together) in desktop effects? I need a composite manager for docky but the slower response on menus annoys me as they have to fade in and out. Anyone know which key in apps -> compiz I should change? Is it one of the plugins or one of the general keys?
View 5 Replies View RelatedServer :: Finding The Performance Tuning Resources?
Feb 23, 2011I am currently reading [URL] its an old document from 2006, so i am not really sure how much information in it is still valid.
View 1 Replies View RelatedSoftware :: Common Lisp Tuning For Gedit?
Aug 28, 2010i need to get gedit to highlight lisp source code as well as provide auto indentation.(because as you may know , lisp programming without auto indentation is IMPOSSIBLE) now so far i've searched the web and tried some "solutions" but didn't work so far , for instance this post here promises syntax highlighting but suggesting to install 2 files , unfortunately it seems to do nothing.
View 12 Replies View RelatedGeneral :: Change SHMMAX Variable For Performance Tuning?
Feb 2, 2011I am using Ubuntu-10.4 and postgresql-8.4.Now I have to change my SHMMAX variable for performance tuning.I have 16 GB.change it permanently and what is the suitable value for the DATABASE Server.
View 1 Replies View RelatedServer :: Apache Maxclient / Serverlimit Perf Tuning?
Mar 25, 2010I've been trying to set-up/tweek these param's in Apache to a setting suitable to the server for the amount of memory. When i look around some people say, hey.. just look at the memory used per process and then divide that by the amount of memory available and you get the number of processes that can be handled by Apache in one go before it starts swapping.
Well, for this i'd done this calculation and for me it turned out to be 200 approx concurrent connections. Well funny thing is, out MySQL server had a slow down so the Apache servers were running at approx 450 concurrent connections and weren't swapping in memory etc (still had 600MB free not including what was available in Buffers/Cache - 'free -m')... Thus if i had have set the limits to 200 then people would have been not getting to the site, so i'm kind of pleased that i happened to not have the time to set this yet.
Server :: Tuning Apache To Handle PHP With NginX On The Frontend
Jun 24, 2010My intention is to have EngineX on the frontend handling all static files, and Apache + mod_php in charge of handling PHP requests. I have optimized nginx to be as efficient as possible in handling static files, but have very little experience with Apache. Since Apache would only be processing PHP requests, would the standard Apache optimization guides suffice or would it best to configure it differently?
PS: this is a dedicated file server, the database is hosted separately.
Fedora Hardware :: 13 - Xorg.conf And Wacom Tablet Tuning
May 31, 2010I've just installed Fedora 13 and I have a question. How do I tune my tablet? I've tried to set threshold and aspect in xorg.conf just like in Fedora 11, but it doesn't work in the current release.
Here's a part of my xorg.conf:
I also tried 'xsetwacom' command, but I get errors.
Networking :: Tuning For High Throughput Reverse-proxy Server?
Jan 18, 2011I have an enormous quadcore machine with 16gb ram and dual gigabit NICs. It used to be for MySQL but we have upgraded the whole database infrastructure so now this server is left floating. I had the great idea of turning this into a reverse-proxy (using apache mod_proxy) and it really handles a ton of requests. But I have a feeling that we are not getting the most use out of what it can offer.
Our traffic consists of a few thousand very small (less than 10 byte) ajax calls per second, and frequently I find we are running out of kernel allocated network stack to handle all the requests. Often we get the kern.log warning "possible SYN flooding on port 80. Sending cookies." and other things like this. Obviously we are not getting SYN flooded, we just have very high demand.
So far I have found a few kernel tuning guides to tell the kernel to allocate more of the base system memory for networking but every guide I have found has been for the purpose of increasing the performance between WAN links (direct backbones between offices etc) and usually with very large file sizes being the priority. One such example (and great) write up is here:
cyberciti.biz/faq/linux-tcp-tuning/
I was hoping some people could provide further input, such as along the lines of disabling nf_conntrack (to speed up socket set up/tear down time) or anything that will speed up a high throughput proxy like mine. Any links to studies or benchmarks between different configurations or hardware gets extra points!
Debian Configuration :: Power Usage (laptop Battery) And Zen Interactive Tuning?
Jun 17, 2015Since according to liquorix.net the kernel
Code: Select alluname -a
Linux t 4.0-5.dmz.3-liquorix-amd64 #1 ZEN SMP PREEMPT Debian 4.0-12 (2015-06-14) x86_64 GNU/Linux
incorporates Zen Interactive Tuning and this
[URL] .... wrote:Tunes the kernel for responsiveness at the cost of throughput and power usage.
Server :: Tuning With Sysctl.conf - Memory And CPU Settings For Heavy Loaded Systems
Jun 28, 2011Does anybody have experience with linux tuning. I`m realy interesting about sysctl.conf tuning settings for batch(3d rendering, phisycs simulations, etc.) servers. Does anybody has an experience with linux tuning - I mean memory and CPU settings for heavy loaded systems. What kind of settings You have in Your clusters ? I`m working with Red Hat Enterprise 5 x86_64.
View 2 Replies View RelatedUbuntu Servers :: Can't Access Ftp After Followed By This Guide?
Sep 4, 2010I had followed this Guide to get proftpd with mysql on a Ubuntu server edition the last one available to download 10.04.1I did everything. phpmyadmin is working I can access it via the browser and create users and groups.When I am trying to enter my server using the ip or the domain name I am getting an instant error.Flash fxp's error log
Code:
[R] Connecting to 192.168.25.117 -> IP=192.168.25.117 PORT=21 (attempt # 2)
[R] Connected to 192.168.25.117
[code]....
Ubuntu :: Where To Download Administration Guide?
Feb 15, 2011Can someone share the links where i can download ubuntu administration guide, Beginners guide for ubuntu?
View 4 Replies View RelatedGeneral :: Read User Guide In Apt-doc On Ubuntu?
Jun 16, 2011I just installed apt-doc package. My question is how do I read the User Guide in this package ? In general how do I use the items from a package once I install it ?
View 2 Replies View RelatedUbuntu :: Guide To Remove Windows 7 Off Other Partition?
Jul 24, 2010Anyone can show/tell or direct me to a guide to removing Windows 7 off my other partition? I'd just prefer to have Ubuntu 10.4 on the entire HD instead of dual booting. I came here so I didn't have to reinstall and wipe the entire HD to do so. Pretty sure there's a way to wipe 7 off the other side and update GRUB to only detect ubuntu.
View 5 Replies View RelatedUbuntu :: 10.10 - Any Updated Guide For Cisco VPN Client
Oct 12, 2010Any updated guides anyone know of that works with Ubuntu 10.10 to get Cisco VPN Client (not Anyconnect) working with the latest version of Ubuntu?
View 4 Replies View RelatedUbuntu :: Need Guide - Internet Domain Name Server
Mar 30, 2011I need to set up a named server for a class room with 10 imaginary hosts the sub domain managed by this name server is s123456.eca.edu.au where 123456 is to be replaced by your student id. The named server will forward unresolved queries to the dns server. It will be on Ubuntu.
View 1 Replies View RelatedGeneral :: Looking For Very Beginners Guide To Ubuntu Server?
Feb 18, 2010I am not averse to using the command line it's just that I don't know many commands so I need complete instructions when using the command line. I need to set up Ubuntu server at the office and I'm the dangerous IT guy that just knows enough to be dangerous but the little company won't hire a real IT guy so I do IT besides my real job, which is to usethe computers, not fix them, set them up, configure networks, servers etc.
View 3 Replies View RelatedUbuntu Servers :: Guide In Which Hardware Components Are Mentioned?
Jan 11, 2010So I was wondering if being relatively new to Ubuntu, and having no experience at all with servers, I would be able to set up a server (one server and a couple of computers), to use in a hostel. I took a good look at the Ubuntu Documentation Section:URl..and most of the things I don't even know what they are for (MySQU, Samba, Apache2).
Basically I need to have a couple of computers with internet access, allowing me to control their use, file sharing to a main HD in the server, also I would like to use the server computer as my personal desktop (office, internet, etc.) and that's about it..The question is, if I were to follow that guide, do you think I can set it up?Also, do you know a guide in which the hardware components are mentioned? Because I googled and the amount of trash coming out, mostly outdated, is extremely annoying.
Ubuntu Multimedia :: Sound Guide Didn't Seem To Work?
Feb 12, 2010It's possible I just did something wrong...Anyway, I don't have any sounds, and haven't since installation.
Code:
00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge
Subsystem: Hewlett-Packard Company Device 3059
[code]...
Ubuntu :: Any Guide Available Explaining How To Setup Chat And Broadcast?
Apr 29, 2010Is there any guide available explaining how to setup Chat and Broadcast?It is not very important (I dont use it much), but as ubuntu is now "Social from start" and very user friendly it should be very easy.However I have not been able to set it up no matter what i have done.
View 3 Replies View RelatedUbuntu Networking :: Guide To Use Share Internet Over Wifi?
Jul 5, 2010My computer running Ubuntu 10.04 (latest) is connected to the internet via an ethernet cable. I would like other devices to connect to the internet by sharing its connection via wifi. Is there a guide to do this? I haven't been able to find one which works out of the box.
View 2 Replies View RelatedUbuntu :: Recommended Newbie Guide For Command Line?
Jul 20, 2010I just installed Ubuntu 10.04 Server the other day, which gives me access to a command line only, to start out with. I'm hoping someone would be able to recommend a guide (online or a book, either way) for absolutely clueless beginners, so that I can learn to competently get around from the command line.
This would include information like:
Navigating the file system.
Editing text document.
Installing drivers.
Mounting data sources.
Installing and configuring packages.
and eventually installing a desktop environment.
Ubuntu :: Guide To Guest Session On Login Screen
Oct 20, 2010I learned how to do this on the 'net somewhere. This HowTo will help you create an account on the login screen that will log in the same guest-session seen in the user menu. The advantage of this is that it will be an easily accessible guest account, while not preserving any files or changes on logout, and a higher security model for the account. Confirmed to work on 10.04 - 10.10, but the directions are for 10.10
1. Under an existing administrator account, go to the menu entry System --> administration --> Users and Groups.
2. Click Add. you may need to provide a password at this point. Name your new user anything you would like, except guest. The account cannot be called guest, but visitor does nicely. encryption of the account is not needed. This account will be a "booster" account to guest-session.
3. On the next screen, enter a password, and make sure that you click the check box "Don't ask for password on login", Click OK to finish.
4. As an extra precaution, click Advanced settings, when back on the Users and Groups screen, and on the User Privileges tab, uncheck Monitor System Logs.
5. Exit the Users and groups menu, and then log out and into your new account.
6. Once there, make a folder called GuestManager, and in that folder, make a plain text file called Guestmanager.sh, with this code in it :
Code:
#!/bin/bash
# Launches the guest session
/usr/share/gdm/guest-session/guest-session-launch
# Logs the user when done
/usr/bin/gnome-session-save --logout
7. Save that and then right click on it, go to properties, and then go to the permissions tab. On this tab, click "allow executing file as program", and then close that window.
8. Open the menu entry System --> Preferences --> Startup Applications, and once there, turn off all the startup applications, and then click add. Fill in the name and comment as GustManager, and for the command, enter /home/visitor/GuestManager/GuestManager.sh, where visitor would be the name you picked for the account in step 2. click add, then close
9. Delete all applets and extra toolbars (might want to leave the main gnome menu), and set the background to black or something else bland, and log out. Since this account is just a "booster" none of these toolbars and such will be needed, so removing them saves memory and load time.
