Hardware :: Assign / Reserve PTS Ports In Certain Order
Jun 17, 2010
I have several environments in which I am using Thin Clients as terminal emulators to Red Hat servers. I have been deploying Thin Clients for the past few years to replace old WYSE dumb terminals. One problem I am having is that the dumb terminals were serial so they were on a specific tty port. The Thin Clients however connect on the first available pts port, I really don't have control over the port each Thin Client connects on, other then possibly making sure they are always started in a certain order, which isn't a feasible option. What I am wondering is if anyone knows a way to control which pts port a thin client connects on; I'm guessing it would have to be by hostname or IP, I just can't figure out how.
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Nov 21, 2010
That's the message I see briefly right before I am booted into Ubuntu Meerkat. It's right after the boot menu and the boot into Ubuntu begins and the screen is still black when that message appears.
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Jun 24, 2011
I run a few programs that are very resource intensive, and although my computer has 4 cores, it keeps "freezing": it still works, I can see that my downloads keep on going, it's just too slow to show me a terminal screen so that I can kill whatever program got out of line.
It may be a bit complicated, but I suppose that there should be a way to do it: how can I keep some "cpu usage" from being used? I don't know, maybe reserve a core for management? Or throw the problematic programs in a "box" of limited processing power?
I'm sorry if this is a really dumb question, I'm a bit of a noob, but that would help me a lot. Of course, if someone has a better suggestion for my problem, I'd appreciate it very much.
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Jan 25, 2011
Can ubuntu be configured to reserve more bandwidth for some domains at the expense of others?
Eg you are browsing facebook and data comes faster than on a tab where you are browsing ......
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Aug 18, 2010
in my text file of 5 columns 2 column is in DDMMYYYY format. (ie DATE OF BIRTH). how to use sort command for its ascending order and descending order.
Is the same can be use for the date format YYYYMMDD ?
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Sep 13, 2015
I'm trying to install plymouth on my Debian 8.2 Jessie (Stable), but when I boot my pc I get this error:
Code: Select alluvesafb: cannot reserve video memory at 0xdf000000
This is my configuration:
Code: Select allcat /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
[Code] ....
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May 7, 2010
What's up with this log message?
shpchp 0000:00:01.0: Cannot reserve MMIO region
After grub loads I get a flashing cursor then I get this message on the screen.
This is what I found in dmesg:
shpchp 0000:00:01.0: HPC vendor_id 1022 device_id 9602 ss_vid 0 ss_did 0
shpchp 0000:00:01.0: Cannot reserve MMIO region
shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
I'm running an AMD laptop With Lucid x86_64, a custom install I did off the alternate iso with onlyLXDE installed.
All my hardware works fine and this just seems like some sort of bug.
Is there anyway I can silence all kernel messages at bootup?
This is what I have in /etc/default/grub and it's not working to silence it.
GRUB_CMDLINE_LINUX_DEFAULT="loglevel=0 splash"
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Jan 14, 2011
When i boot i get an error saying cannot reserve mmio region. It does not seen to affect anything,
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Mar 5, 2011
In gparted I have the following stats for my /home drive
size: 824 gb
used 75.51 gb
unused 748.59 gb
Now when I view this in nautilus it shows something else: remaining free space as 709 gb. My question is what happened to the 40gbs? the 75.51gb are my files, but where did the 40gbs go to? Because 709 (total remaining) + 75 (my files) + 40 (mysteriously lost gbs) = 824gb. When I first made the partiton, it was a 824gb partition and ubuntu had automatically at that point reserved about 40gb for something. Does anyone know why Ubuntu reserved this space?
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Dec 17, 2010
I'm writting an app for desktop and embedded linux and I need to get information about the multiserial port, and I need to know which port is been used (by a printer, por example).The multiserial I'm using is an Altera Corporation Device 0004, and I just need to tell how many ports are there and how many is been used.
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Mar 14, 2011
I am somewhat familiar with SGE (Sun Grid Engine, now Oracle Grid Engine) commands but am having a problem when running parallel jobs.
Present Machine configuration:
machine I - 12 cpus
machine II - 12 cpus
machine III - 12 cpus
.... so on ...
One_machine - 16 cpus
(I have all machine of 12 cpus and 1 machine having 16 cpus)
I want to schedule jobs on these machine such that if I ask for 12 cpus - my jobs should execute on any of the machines which has all 12 free cpus (eg machine I or machine II) in this case.
Eg. suppose I ask for 24 cpus
Option I : 12@machine1 12@machine2 ----- I need this
Options II : 10@machin1 10@machine2 4@machine3 ---- I don't need such a distribution
Hence, Option I is ideal here. Also, when running 12 jobs on machine1 (say) - even if all 12 cpus are not being used at some instance of time, none of the 12 cpus should be freed.
In short, until my run finishes, all blocked cpus should remain blocked.
If you may understand, the purpose here is to run some performance tests.
I'm using 'qrsh' to launch jobs.
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May 7, 2011
I'm using a slack 13.37 version and this message is occuring during wine apps running:
preloader: Warning: failed to reserve range 00010000-00110000
Instead of being only a warning, I think it's breaking down and don't know exactly it's a wine or OS problem.
Googling point me a wine problem,
url
and another Ubuntu and Wine topics .
url
url
But I'm in a 32bits option ( no multilibs ), my wine, dependencies packages and procedures are the same installed before in 13.1 . Just system was changed! Anyone have any info on that sytem or wine problem?
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Aug 11, 2010
How can I tell if my USB ports are 2.0 ports?
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Sep 12, 2010
I'm having trouble setting Java up on my virtual private server. It works fine when running under root, but if I run it under a normal user account I get this error message:
Quote:
Presumably the memory allowed to be used is being limited, but I can't figure out how to change it. I've tried adjusting the -Xmx argument, but the highest value at which it will work is 18MB, which is not enough.
This is the ulimit output for the root and user accounts respectively:
Code:
Code:
I suspect the problem is due to the virtual memory, but there doesn't appear to be any way to set the value in limits.conf. If I manually lower it to 200000kB under root I get the same error message.
I'm using Red Hat x86_64, kernel 2.6.18-028stab070.2.
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May 10, 2010
I updated my laptop to 10.04 earlier today and it worked fine but it was being a bit glitchy so i rebooted my laptop and it worked fine until it showed an error saying "cannot reserve MMIO region".
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Jan 21, 2010
Fedora 6, Realtek 8139. Gnome graphic let me assign with
system-config-network
I was using private 192.100.1.10 and click ok. After I run ifconfig and take 169.254.195.57 (look like auto assign). Is there another method to assign IP?
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May 16, 2009
I have laptop with Spanish keyboard layout. It has no ~. Lately I've been looking up lots of uni web pages, and they often have ~. How can I assign ~ to a key? On this library computer, I have ~ by pressing shift and the key next to 1 above the letters, or by holding ALT and entering 126 on the numberpad. I have no numberpad on my laptop. The fn functions aren't working under Ubuntu.
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Jun 17, 2010
My server has 2 network cards. I have SLES 10 SP2 installed on this server. I had configured Ethernet bonding on this machine using 2 NICs. Now I want to assign 2 different IP's to 2 different NICs. I am able to do this without any issue using yast. ifconfig command shows that eth0 has 192.168.1.10 and eth1 has 192.168.1.12. Rest all networking details are same (netmask, gateway, DNS)
Strange thing: When I unplug only eth0, (eth1 is plugged in correctly) I am not able to ping any IP.
If I unplug only eth1, (eth0 is plugged in) I am able to ping both IP's.
[Code]...
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Apr 14, 2011
I've installed a new copy of Ubuntu 10.10.Now the big question for me is how do we assign hostname to a given ip? I've given the hostname during the server installation and "cat hosts" says "ebox" hostname I'm trying to put on.Also,I modified the network/interfaces to static and assigned proper values.
#hostname returns ipaddr not the hostname. Also nslookup hostname/ipaddr says server can't find ....
So,is installing dns through bind and setting-up the only way to do that?
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Jan 8, 2010
I am using RHEL 5 or 5.5 version as my os. I want to assign more than one ip for that machine. I am very new to linux.
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May 14, 2010
I have a fresh installed redhat 9 with 1 network card attached may I know what command will I type to assign 10.0.0.1 on the network card?
and also when I type hostname it always reply localhost.localdomain
how can I assign a hostname
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Dec 5, 2010
I have 2 wans . I want to assign a particular wan to selected IPs.Will I achieve it by iptables or ?
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Sep 20, 2010
How to assign virtual ip in RHEL5.4?
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May 11, 2011
I have an old laptop.The laptop's 2 keys(g-h) are not working.I think the keys assign to different keys that the keys are windows keys near CTRLs because linux dont use these keys.Can I assign not working keys to the windows keys?
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Jan 6, 2010
The router is set up to use a 64-bit WEP passphrase. From what I've read, that means four different hex keys. One of which is meant to be active. I've tried each of the four generated keys, one-by-one. I've also tried putting them all in and activating one, but the syntax seems to be wrong.
I read Alien's Wiki on it, and various other sources. People keep suggesting wicd, but I want it to work with the rc.inet1.conf file first. Just so I know what needs to be entered in order for that to happen. I have a desktop to set up eventually as well, and that shouldn't need wicd.
My configuration file*: [url]
My lspci entry for the wireless card:
Code:
*I've edited this several times since upload, but nothing has worked so I don't think I need to keep it up-to-date. The online file is basic configuration, I believe.
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May 1, 2010
I just installed ProFTPD. So I want to create a user namely ftpadmin. He belongs to the new usergroup ftpuser that I just created.
sudo groupadd ftpuser
sudo useradd -s /bin/false -g ftpuser -d /var/www ftpadmin
sudo passwd ftpadmin
.....
chmod -R g+w /var/www
and when I followed the tutorial
chown -R ftpadmin /var/www/*, chgrp -R users /var/www/*
it returned an error "invalid mode: ftpadmin " why?I want my users to login my server via FTP
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Jul 29, 2009
I have connected my computer to network. Computers in network have dynamic ip address which is assigned by ADSL modem's DHCP. Besides this I want to have static IP address for same NIC. So is it possible to have both static and dynamic IP address for single NIC? If so how can I assign it using command and also in GUI?
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Jun 13, 2010
I want to assign a static ip address, my network/interfaces files shows
Code:
auto lo
iface lo inet loopback
am I correct to add
Code:
iface eth0 inet static
address 10.42.43.10
netmask 255.255.252.0
gateway 10.42.43.1
or is there more I need?
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Jul 22, 2010
I'm running Ubuntu 10.04 on my Lenovo laptop. Sometimes I use USB KB which doesn't have the Multimedia keys. It would be great if I will be able to control my Volume etc using some Keyboard shortcut. I know that this can be done using Preferences->keyboard Shortcut. But the problem is it "replaces" old key (e.g. dedicated volume key on laptop ) with new one which I don't want to happen. I want to keep both keys for same operation.
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Jul 26, 2010
Obviously I don't know that much about CPU architecture. I have a fancy new quad core CPU in the machine I just built. Now, given the current state of technology, two or many times three of those cores are pretty much sitting idle.My question is: Is there any way to utilize those extra cores with programs not optimized to take advantage of them? If I have some CPU intensive application, is there any way to tell it to utilize a core that's idling instead of the first core that's probably already got a bunch of processes running on it?
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