I've noticed over the past few months that my internet connection speed (D/Ls, browsing) are getting incredibly slow, but only on my linux box (my laptop, for instance, is fine - in fact, I'm dual-booting with WinXP and it isn't happening there, so I think I've managed to narrow it down to the OS alone):
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I'm a little stumped on this one so I reaching out to see if anyone here has any idea. I just changed my ISP to Surewest as they're doing fiber straight to the house in my area so I have 8Mbps up and down.
I have my linux box running openssh and I have no problems SSHing into it from my remote laptop at work. I use putty to connect to it and create a tunnel so I can configure my firefox to use it as a SOCKS proxy. The problem is my response time for page loads in firefox is atrocious now. It'll take over a minute to load yahoo.com. The only real differences in my setup now are my ISP and router hardware at home. Previously, I was using the firewall that was built into my AT&T Uverse gateway. Now, I'm using my old Linksys WRT54G v5.0 router with the latest firmware. My linux box is wired directly into it with ethernet. When I run the speed tests from that box I get my correct speeds of 8Mbps up and down with <15ms ping. From what I can tell, all of my router settings are correct.
icmp request from an ip that is in the same network as one of the local interfaces is not responded to, if the ping request is received via an interface in a different network. Is this some security feature?
Consider the below network
x.1|RTR1|-y.1---------y.2-|RTR2|-z.2------z.3-|LNX|-x.3
RTR - Router
x.1 -> 192.168.x.1
LNX - Linux machine
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I have Fedora 11 installed on a Dell Precision M60 lap-top, running KDE. I've used KDE for years, but a number of issues with KDE 4 had forced me to look at alternatives recently. With F11, KDE 4 seems to be getting more functional, being more or less usable for real work... However, a couple weeks ago, I ran "yum update" and picked up KDE 4.3.1, and while it seems to have fixed a few more things, there also seems to be a regression in terms of performance - on this lap-top anyway.
Basically any window operation -- opening a new one, moving, resizing, even moving the mouse from one window to another (I use auto-focus) -- is slow, and during this time the CPU load from the "X" process becomes very high -- close to 100% according to "top". When not "touching" any windows, CPU load goes back to normal. I did run across some advice to turn off desktop effects, which I did -- it reduced the sluggish response slightly, but the problem is still present. And I had the same settings before the update, and performance was fine.
Here is some info about this machine:
Dell Precision M60 lap-top
CPU: Intel(R) Pentium(R) M processor 1.70GHz
RAM: 1 GiB (not a lot by today's standards, but this issue does not seem related to swapping)
video: nVidia Quadro FX Go700 (using default installation, nouveau driver)
display: 1920 x 1200
kernel: 2.6.30.5-43.fc11.i586
KDE: kdebase-4.3.1-2.fc11.i586
nouveau: xorg-x11-drv-nouveau-0.0.12-40.20090528git0c17b87.fc11.i586
My Kubuntu installation (9.10) boots up normally and seems to run fine, other than it is very slow to respond to inputs or change screens/ applications etc. It can take 5-10 seconds to respond to simple requests like changing from firefox to dolphin by clicking in the taskbar. It is dual boot with XP, which also seems sluggish, but is bearable.
The computer is barely useable in Kubuntu because of the slow response. I had 9.04 installed before, same problem. I tried searching for drivers for the on board video, thinking that might be it, but came up empty.
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I know this doesn't matter to most people because most people hold shift to capitalize letters. I tap the caps lock with my pinky whenever I need something capitalized. I'm a pretty fast typer, I just don't type correctly. How do I get it so that when I'm typing and I hit Caps Lock for it to be an instant effect? For example this is what I'm getting annoyed with, here is an example of what I am having to recorrect everytime I type.
HEre IS AN Example. MY NAme IS Zachery GOchenour.
I have an Ubuntu 10.04 server here, and this week internet sharing got too slow... i dunno if it is a squid problem... but it's too slow. And when i try to registar a domain for that server, bind gives do response. If i dig my server inside lan, it's working pretty well.
View 2 Replies View RelatedI have installed Centos 5.4 with Sendmail 8.13.8, i have modified sendmail.mc file and compiled to sendmail.cf with following lines
1. TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')
2. Define define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
3. DAEMON_OPTIONS(`Port=smtp, Name=MTA')dnl
My problem is that when i try to open port 25 with telenet it takes lot of time like more than 1 minute to open session and another 30 - 40 seconds to respond to "ehlo" command.
Also when i try to open telnet session on port 25 in another server it hardly takes 1-2 seconds open session.
I am having some issues with the typing speed in gedit. When typing the response is usually really slow,It can be up to a second or so between rendering keystrokes. I don't believe it has anything to do with resources. I have checked the processes running when it happens and everything looks pretty normal cpu usuage is also very low at the time. The system is very responsive with everything else at the time.
I only have this problem with gedit, gvim, vim, nano etc are fine. Maybe an issue with a GTK lib of some sort? The problem happens with very small files like little bash scripts. I have including some info about the system ...
System: Host: debian Kernel: 3.14-2-amd64 x86_64 (64 bit gcc: 4.8.3)
Desktop: Gnome 3.12.2 (Gtk 3.12.2-3+b1) dm: gdm3 Distro: Debian GNU/Linux jessie/sid
CPU: Quad core Intel Core2 Quad Q6600 (-MCP-) cache: 4096 KB
flags: (lm nx sse sse2 sse3 ssse3 vmx) bmips: 19200
Clock Speeds: 1: 1600 MHz 2: 1600 MHz 3: 1600 MHz 4: 2400 MHz
Graphics: Card: NVIDIA GT200 [GeForce GTX 260] bus-ID: 01:00.0 chip-ID: 10de:05e2
Display Server: X.Org 1.16.0 driver: nvidia Resolution: 1920x1080@60.00hz
GLX Renderer: GeForce GTX 260/PCIe/SSE2 GLX Version: 3.3.0 NVIDIA 340.32 Direct Rendering: Yes
While Blender 2.5 may be stable, the Python API is not. According to the Blender website... Note: The Blender Python API has areas which are still in development. The following areas are subject to change. -operator behavior, names and arguments -mesh creation and editing functions.
View 8 Replies View RelatedI am running Wheezy on a Lenovo ThinkPad W530. When using the hotkeys to control screen brightness (Fn+F8/9) there is a 10-30 sec delay before the screen changes.
From Brightness Settings it changes instantaneously. It seems to be the same issue as this. I tried the fix in comment #5.
I added "acpi_backlight=vendor" to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub then ran update-grub. After restarting I could not control the screen brightness at all.
I have opensuse 11.3 (64 bit) with nvidia 8400GS (256 MB ram). The system is a core 2 T7500 with 4GB Ram. I have installed nvidia drives (through nvidia's .run file, versison 256.35)
1) When i connect an external monitor (1440x900) and use separate x-screen+ xinerama (laptop has 1280x800), desktop response is really slow. Moving windows,switch tabs etc make desktop (kde) barely useful. Especially if i open a large txt file it is almost impossible to scroll through this file.
xorg file (see attached file) is been created by nvidia-settings.
One minor solution I found is to use 16 bit (instead of 24bit) color. This makes everything better, but still not fast enough. I do not use desktop effects.
An important note: This happens only after some period of time. After reboot everything seems to be ok for some time, but suddenly something changes and I have slow response.
I do not have the same problem under windows.
2) How can i specify that laptop's screen be the default, so it can have the taskbar?
3) When i disconnect the external monitor and restart x, then the laptop screen goes to 1024x768 and not to 1280x800. I have to create another xorg.conf and restart x. How can I make just one xorg file, and the system automatically adjust resolutions regarding if i have one or dual monitors?
Code:
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 256.35 (buildmeister@builder97.nvidia.com) Wed Jun 16 19:14:45 PDT 2010
Section "ServerLayout"
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My notebook is using intel core 2 duo T6400 CPU and 2GB Ram, when I am playing MP3 with Amarok and at the same time running Firefox, the computer tends to hang and slow in response to open new website.IS it due to my hardware?
View 12 Replies View RelatedIn the right upper corner of your screen,you can see if you have a network connection or not.Most of the time I do not have one according to Networkmanager (?).So I have to enable my wired connection manually.I already tried a lot to change my settings so I would have a network connection at boot,but it doesn't seem to work....Firefox is in Offline modus when I logon..
View 2 Replies View Relatedfirstly it took a very long time to display the browser.After the browser was working on my localmachine it took really long time to show the response.I am doing all this on internet and the server has bandwidth as 6Mbps and my internet connection has a speed 1Mbps what could be the reason for such a slow response.The same exists in case of Chromium is there a way to make it fast.Ubuntu 10.04 server edition and ssh2.
View 2 Replies View Relatedhow do you adjust the response time of the taskbar menus, such as when you click on the start button on the bottom left of the desktop? My problem is that when I click them, it would delay for about 1 second before popping up the menu. But right-clicking on the desktop popped out fine without any delay though. Is this normal? Where do I adjust the settings for this? I have configured my ATI graphics card succesfully. Direct rendering, desktop animation and everything else is working fine btw.
View 4 Replies View RelatedI have installed Ubuntu 10 alongside with Windows XP. Consequently I need to make a choice at boot time. However, I feel that the system is not waiting very long, maybe 5 seconds or so, before going automatically into Ubuntu. Can that time be increased? If so, where or how?
View 1 Replies View RelatedI am using Slackware 12.2 on my laptop
compaq presario V2356AP
Intel centrino 1.6ghz
1 GB Ram
and Slackware is installed on 16gb partition with 10 gb free now.When i installed it was fine over a few days slackware is giving me high response time. while playing videos it is getting stuck firefox is giving bad responses and even konqueror.I heard that slackware is one of the fastest linux and is old hardware friendly right
I am losing network bandwidth and I am quite frankly I am not sure why, I don't have allot memory 495.6Mib
But I clean my PC every few days "BleachBit"
I have read some where on the magazine Network receiving suppose to be higher. so how can I fix this issue please i am having allot problems, u use cable from Comcast
I am not quite sure what Information you might need from me to give.
I use Ubuntu 8.04 LTS
I wonder if someone could please direct me to a really simple guide to adding a Linux Mint 10 PC to a Windows XP home network that gives clear instructions for the actions to be carried out in both Linux and Windows XP? The Linux box is connected to the router by ethernet cable. I have tried the Samba Setup Guide [URL] but it ends cryptically with "Now you need to setup your Windows PC for domain logins" and none of the IT folk I have asked at work know what that means.
View 6 Replies View RelatedTrying to network three computers using dhcp.
Box 1: older Asus A7N8X-E deluxe w/onboard ethernet using dhcp
Box 2: new Asus M4A785-M Micro ATX w/onboard gigabit ethernet using dhcp
Laptop: Dell Studio 1745 w/Intel 5100 a/b/g wireless
Router: Linksys WRT54G set as dhcp server
Both windows boxes are set for workgroup "home"Laptop is "laptop.home"They can all connect outside to the internet but don't seem able to see each other, not even to ping each other.
I am facing an annoying problem with the wireless network of my university.The network is open, doesnt have wpa/wep, and once connected when requesting any page in the browser it gets redirected to a login page. Basically any pc running windows works fine, however if the os is linux-based than the pc connects just fine, it gets an ip, but the login page never loads. I have tried several browsers, several machines, even my android smartphone is locked out as well as all my friends running ubuntu, arch linux and others linux distros.The technical support never answered my email, and it's now 3 weeks that we are all without internet.
View 9 Replies View Relatedi really confuse now..many people gave recommendation for many book.i have little experience on networking
what is the best book for understand Linux Networking from Scratch..
I am running my Ubuntu 32 bit server on top of Windows 7 64 bit with VirualBox. It's a 2 core Atom. It's been working good for about half a year. But the last about 6 weeks the system time only in Ubuntu is going slow. About -8 per 24 hours! I can only guess because I have more things running in my Windows 7 and Ubuntu.
I can set it right by coping the hareware time to system time with this command:
Code:
hwclock --hctosys
I want to run a crontab to have that command run every minute. But it don't seem to run.
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I noticed tonight when I go to Places, Network, it will bring up an icon for Windows Network, and I can drill down to my Windows box. But I can't see the other Linux box (a laptop running Kubuntu), and the same behavior occurs on the laptop when trying to view the Linux desktop. The laptop is connected wirelessly, if that makes a difference. Each box can ping the others, but I don't yet know how to browse one Linux box from the other Linux box.
View 1 Replies View RelatedI need to test network card throughput and speed between two computers, one is running Fedora and other running Windows 7. Usually I would use netperf to perform this task, however I can't find Windows build of netperf. Can anyone recommend any network evaluation tool, similar to netperf (clien/server) which has both Windows and Linux versions.
View 2 Replies View RelatedOk, the only thing I remember doing is changing out my hard drive because it went bad. I swapped in a new one and reformatted with Windows 7. (I can hear the boos and hisses as I type) Anyway, now file transfers are exceedingly slow. They are ~10KB/s when they should be ~40MB/s. The odd thing is that it mostly occurs on large files, but not all large files and sometimes smaller files are affected. Copying files from one hard disc to another on the server, as well as copying from the server to Win7. Local files are not affected. The problem does not occur on my laptop which has Slackware Linux on it.
Another thing about the problem is that when I mount a disc image on a virtual drive, access time is very slow and windows explorer is very unresponsive and often locks up completely.
I have a samba server with Slackware Linux on it and a Windows 7 client. DHCP is configured through dnsmasq. (dhpc-host=<mac address>,<computer name>) Every now and again, dnsmasq seems to conk out when I try to access the network with my Win7 machine. I then have to reboot the server, as my only access to it is via SSH and I don't have a video card in it. After the server reboots everything is fine until accessing the network with my Win7 machine conks it out again.
I've tried different MTU settings, different network cards on the Win7 machine(Dlink and realtek), various regedit hacks, but none of them produce any results.
i have this EM in /var/log/messages:
Oct 19 10:37:38 hoofdkwartier named[319]: client 192.168.66.201#37490: RFC 1918 response from Internet for 107.20.10.10.in-addr.arpa
I tried al lot of things trying to get rid of this, including blocking the host with denyhosts, removing it from dhcp.leases and adding entry's in /etc/named.conf,
following instructions I found on [URL]
Other info I found on the internet are too complicated for me.
We are running an OpenSuse 11.1 server, clients are both Linux and Windows
machines.
I'm using Fedora Core 12 quad-core Linux box. However, when I run VMWare Workstation (running a single virtual XP box, running nothing) it slows to a crawl. The load average jumps from 0.11 to 4 or even 7 when I am using the virtual box. The mouse stops responding within the virtual box, and even on Fedora itself when the load average gets high enough. I can't get any work done and I can't get into "the zone".
View 2 Replies View RelatedI've been asked to look at a system which is running slowly. It's running hardy on an intel Q9400 quad core CPU system which should be a pretty fast machine.
The most obvious symptom of this problem is that the terminal takes about 10 seconds to open instead of the usual fraction of a second.
What I've discovered so far is that the system has 2 network ports one configured to access the LAN and the other to connect directly to another piece of hardware using a different subnet. If the LAN is not connected the system runs slowly and if it is connected it runs at normal speed. It also makes no difference whether or not the second network port is connected.
I've looked at the system monitor and can see no abnormal network traffic or processes using a lot of CPU resources.
