Slackware :: New 13 X64 Installation - Slow DNS Lookup ?
Mar 31, 2010
I've been cracking on with getting a new Slackware 13 x64 installation going. I've got a problem with browsing the net which I can't put my finger on.
When I try to access a site my machine spends a long time with the "Looking up www.website.com" message at the bottom. It can take 7-12 seconds before the site is found. Normally I would blame this on my ISP or connection but Mint, Debian and Windows XP aren't having this problem, they just zip straight to the site whether I've been to it before or not.
Is anybody aware of where the problem might be? It's not in the browser either because Opera, Seamonkey and Firefox all have the same problem issue.
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Sep 7, 2010
I've been comparing the current Slackware 32 bit versus 64 bit, and I've noticed that the 64 bit version is as slow as dialup for domain name lookup.
The 32 bit version is very fast to find websites after a mouse click, whereas the 64 bit version takes forever looking up URLs. (using Firefox)
All the other 64 bit Linuxes seem to be the same way, not just Slackware.
The /etc/resolve.conf file is the same for 32 or 64 bit Slackware, but something is not right. The 32 bit version has a /etc/dhcpc directory, but not the 64 bit version.
Could this be causing the extreme slowdown?
It's really very irritating when the rest of the system is blazing fast.
AMD Phenom II X4 955
Asus M4A88TD-V
8 GB Corsair XM33 ram
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Nov 9, 2010
For a while now I've got a problem when surfing the internet. Everythings fine for let's say 15 minutes and then all of a sudden it takes about 1 minute to load a -random- page, once it has loaded, everthing's fine again. Transmission does not seem to have this problem. I'll double check this. Looking thru the forum I found the following "solutions". None of which has worked for me up to now:
- disable ipv6 in firefox
- set method under network manager to "Automatic (DHCP) addresses only" and use google or OpenDNS dns servers
- change resolv.conf (comparable to the second one I guess)
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Jun 4, 2011
I just installed Ubuntu 11.04 in a dual boot environment on a spare laptop( Dell Inspiron 6000 ) I have other machines using older distro's of Ubuntu but do not have them all on line... utility costs are ridiculous here..anyway.... I found some optimization tips for Firefox and those have been done and I did find earlier information about this or a very similar problem but all the suggestions mentioned there are already in place here network wide.. Basically what is happening is this: When a web site is opened from the browser in the lower left hand of the screen it displays "Looking up www.google.com" or what ever url was entered.
I know Win is not a good comparison and I haven't gotten any additional Ubuntu boxes on line yet but Win seem unaffected by this.
Any recommendations as to what I should try next?? I have DNS server information stored in the router using Google Public DNS and Open DNS as a backup and uPNP is disabled. Seems like the program (Ubuntu) is plenty fast even on this Celeron based machine but the time taken to look up DNS data is a lot slower than anticipated.
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Jan 24, 2010
Why would this iptables cause this mail delivery error? I think it's to do with dns lookups not being routed properly... if remove the last rule, mail works fine.
ssh is also very slow to connect when the last rule is enabled.
postfix mail error:
Code:
Jan 24 11:32:18 xxxx postfix/smtp[15065]: 9F2162C519: to=<xxxxx@hotmail.com>, relay=none, delay=1005, delays=965/0.01/40/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=hotmail.com type=MX: Host not found, try again) iptables
[Code]....
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Apr 21, 2011
After I upgraded 11.04 on my netbook (Latitude 2110), I get a symbol lookup error when trying to run Spotify (Native Linux Client) and other QT based applications:
spotify: symbol lookup error: /usr/lib/libQtDBus.so.4: undefined symbol:_ZN14QObjectPrivate15checkWindowRoleEv
I found the following thread on the Spotify support website, with the exact same error. I cannot quite understand how to diagnose and fix the problem from the information provided. Anyone got a good tips or hint?
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Oct 21, 2010
The most recent update impacted my thunderbird-3.0. When launched I get these error messages
/usr/lib/thunderbird-3.0.3pre/thunderbird-bin: Symbol `SSL_ImplementedCiphers' has different size in shared object, consider re-linking
/usr/lib/thunderbird-3.0.3pre/thunderbird-bin: symbol lookup error: /usr/lib/libnssutil3.so.1d: undefined symbol: PL_ClearArenaPool
I can only assume the libnssutil3 library was upgraded and this broke the library call in the thunderbird-3.0.
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Nov 14, 2010
I'm gonna tell you about slackware installation on my notebook, an acer travelmate 800lci.
On this notebook, I successfully installed (and work with) slackware from version 10.0 till the recent 13.0. Upgrading to a new version till using a new internal hard disk (from 40 GB to 160 GB). After upgrade I fully reinstall slackware 12.2 and then upgrade to 13.0.
Now, I had to use the notebook for testing, so I made a new full installation of slackware 13.0 and after some time a new full installation of slackware 13.1.
On this disk (160 GB P-ATA) I have to pass the following parameter to the kernel:
during installation and boot.
This operation solve the issue that can "see" the full size of the disk (160 GB) and not the 137 GB limit.
Only using slackware 13.1, occur a big (for me) problem.
I can fully reproduce it opening any pdf document with xpdf: moving into document with arrow keys make the cpu goes to 100% and page "fault/s" goes from 30 to 8000 and some times 15000 "fault/s". So, xpdf becomes unusable. This problem reflects in similar manner to other software, like firefox.
Here is my question: what type of analisys could I try to solve/analyze this issue? Maybe the kernel, xorg?
On slackware 13.0 all works perfectly.
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Apr 8, 2010
Just installed slackware-13, and sorting issues. I actually have googleearth running - just.It's telling me it's using opengl, but opengl is absolutely cat on this box I have ATI RS690M with the radeonhd driver on my laptop. Opengl is terribly slow. Videos stall, but I move them withmplayer -vo sdl <my_video>/end backgroundAnything I can do with Google earth?o option to swap. fglrx is crap on opengl.
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Aug 3, 2010
I downloaded the emulator called pSX so i can play my playstation cds in my computer. on my laptop i have slackware 12.2 installed.
The dependencies for the emulator are:
opengl
gtk
alsa
gtkglext
libxml
I found the appropriate packages for all of these (with the exception of opengl, I assume that means it's preinstalled, correct me if I'm wrong) and installed them. the emulator runs, at about a quarter the speed it's supposed to. I get no error messages in the terminal, just the huge speed drop. has anybody else gotten this emulator to work fine in slackware?
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Mar 4, 2010
I upgraded to -current last night hoping to improve my Intel 845G graphics controllers functioning in X, I've had to use the vesa driver for stability. The upgrade was completed but KDE seems as slow as ever. Here's some snippets from Xorg.0.log:
X.Org X Server 1.7.5
Release Date: 2010-02-16
X Protocol Version 11, Revision 0
Build Operating System: Slackware 13.1 Slackware Linux Project
Current Operating System: Linux speedy 2.6.33-smp #2 SMP Sat Feb 27 20:12:16 CST 2010 i686
code....
It seems I'm still using the vesa driver, any ideas on why the intel isn't being used and how to fix it?
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Jan 19, 2010
My Slack takes some time to boot. It hangs about 5 secs in a line that reads:
Quote:
/etc/rc.d/rc.M: eth1 information: "MySSID" Then, it polls for a DHCP server on eth1 (I didn't write down the exact message). I noticed that if my router is off, the polling process take quite some time to move on.. I tried to look the rc.M, rc.inet1 and rc.wireless scripts, but I couldn't pin point what to change... I tought of adding an '&' at the end of the command that issues the line I quoted and on the DHCP. The DHCP line I didn't search much, I'll try it later...
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Apr 6, 2011
I set up a dual boot with windows 7 and slackware, but now my Windows 7 is so slow that it wont even open things.
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May 16, 2011
I just installed and configured Slackware on an old computer I am using as a router.
The internet works fine on the slackware box (router) but all of the computers behind it are having issues. When browsing, some websites work perfectly fine, while others are slow to load, and a few don't load at all. I'm not really sure where to start on diagnosing this, so any help would be appreciated.
Also whenever I restart the computer, I have to use this command before the DHCP server will start. What do I have to do to get it to start up with the computer?
Code:
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Jan 24, 2010
After installing Slackware 13 and configuring it as a router, I'm getting very slow internet speeds on my clients. It takes forever to connect to a website or downloading 100mb bin file also takes forever. On the Slackware box the speed is fine though. When I boot from my previous Slackware 12 drive, the speed on the clients is ok again.
I have compared config files from my old and new installation and haven't found a difference. from other posts I learnt that disabling IPv6 by adding it to the blacklist could help. But this didn't help me either. I have also compared a traceroute on both installations. This also doesn't show a (big) difference.
The only difference I have found is that in my Slackware 13 setup the following modules are loaded while with my old Slackware 12 lsmod is empty.
Code:
The only thing I can think of is a missing option in the kernel. I have used the huge-smp from the Slackware DVD, assuming this would have all the important stuff enabled by default. It this right?
Some additional info:
eth0: nVidia Corporation MCP51 Gb onboard Gb NIC, connected to LAN (static)
eth1: 3COM 3C2000 Gb NIC, connected to cable modem (dhcp)
dhcpd is running to configure clients in the network
arno-firewall installed
Files I have compared with my old (working) system:
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Jul 8, 2010
I've been using Opera 10.11 on two different computer systems, two different locations (work & home), and two different Slackware versions (13 & 13.1 current). Opera 10.11 runs very quickly on both. After upgrading to Opera 10.60, I now find that linking to new web pages takes 5 to 10 seconds, but returning to a previous page is almost instantaneous.
I've tried installing 10.60 using slackbuilds and Opera's installer - both give the same results. I've since reverted to Opera 10.11. why it is so slow to open web pages? Opera 10.60 for Win7 works great, so what happened to the Linux version?
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Nov 30, 2010
I am a newbie regarding the Slackware, though i have some millage on Ubuntu. Anyway, i have Slackware 13.1 and slapt-get is really, really slow when downloading packages, even when i do slapt-get -update the slowness is just killing me
The second question is somewhat different. How can i view dependencies on which a particular application is depended?
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Jul 26, 2010
i have a nb5plus4w modem/router at home which acts as a dhcp server on my lan. upon connection it instructs the clients to use 192.168.1.1 as a dns server (which is the ip address of the router) and linux machines are happy to use that in /etc/resolv.conf. now the issue is that under these conditions dns resolution is sloooow. there have been some discussions on the net saying that the router is not a 'real' dns server (don't know what that means), but the only way i have been able to get around the issue is to edit /etc/resolv.conf to use my isp's dns servers and then chattr -i the file so that dhcpcd doesn't change it.
this approach works for the desktop and even though it is ugly it's effective. the laptop is a different issue. if i take it out of the house i have to chattr -i and let the new network put it's dns addresses in and then change it all back when i get home so, the question is... can i do something to stop doing chattr and get the dns performance of a windows machine (dns resolution is quick on the windows machines)?
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Oct 20, 2010
It seems every 30 seconds the internet lags, after that it is fine for 30 seconds. And this happens continuously. Also it seems when I am on Firefox if I am connected to a website, I can navigate the website with not further trouble. But if I navigate away and try to go back, it takes a while. I didn't update, or upgrade or anything. I am running 13.1 and have been since it came out. This just started with the internet 2 days ago. Also I have a dual boot with Win7 and the internet is fine on Win7.
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Nov 1, 2010
I have a Slackware 13.1 install on a Desktop PC with wireless keyboard and mouse. When I log in it takes a very long time(5 minutes or so) before the keyboard starts working, and f.ex. it's possible to do Alt-F2. The mouse also works slowly in this period, but it is working.
I'm running KDE 4.5.2 on Slackware current, but did have the same problems with the fresh install and KDE4.5.1. When the lag period is over everything is working as normal. I have turned of strigi indexing and could not find anything special when running "ps ax" or "top".
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Mar 5, 2011
i got 2xgtx280 and 2 x xeon 5650 transparency and shadows work ok but i have little problem when windows mannager starts(fluxbox) when i click first on for exemple firefox windows its moving slow for 4 sec after that is ok and if i dont use that window for 2 min and i wanna use it again its slow again for couple seconds how can avoid this? i was trying alot xorg.cnf settings and xcompmgr and nothing changes...
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Nov 5, 2010
My Nvidia card broke down recently, I replaced it with Ati Radeon 2600HD Pro.
Now I have no compositing, everything freezes or it's just dead slow.
As for now I'm using fglrx drivers, but I've tried xorg drivers before, without success either.
My xorg.conf
Code:
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Nov 22, 2010
When i checked last time couple months back glx gears gave me 1400 frames around now i get
Code:
glxgears
Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate.
21 frames in 6.6 seconds = 3.160 FPS
2 frames in 5.6 seconds = 0.359 FPS
84 frames in 5.8 seconds = 14.362 FPS
149 frames in 5.0 seconds = 29.724 FPS
300 frames in 5.0 seconds = 59.814 FPS
and everything is running slow im wondering where the problem might be?
code....
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Jan 14, 2010
Quote:
Originally Posted by mcnalu
Nepomuk/strigi slowed my machine to a crawl and used 1Gb of disk space so I turned it off. In my machine is the same thing. Turning it off is a right and wise solution?
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May 4, 2011
I've upgraded (reinstalled) from Slackware 13.1 to 13.37 on an old iMac and have problems with slow graphics.
lspci says this about the graphics card:
Code:
With Slackware 13.1 I had no KMS enabled and graphics speed was okay. It wasn't very good, but okay for everyday work. Now with 13.37 it's extremely slow. glxgears runs with only around 38 fps, no matter what I do. And every now and then when logging off, I get a black screen and no new kdm-login. But I can ssh into that machine and restart X by issuing 'init 3;init 4'.
KMS is enabled (I've also tried disabling it, but then KDE crashes right after logging in) and it's a fresh installation of 13.37 with a 2.6.37.6 kernel.
What can I do?
I have to admin I don't know this video and X stuff very well and I used to have machines with NVIDIA cards.
If there's anything else than the usual Xorg.0.log needed.
To me the log doesn't look like there's any problem whatsoever:
Code:
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Jul 10, 2010
I've just installed Slackware 13.1 and am using a VESA framebuffer on a dv5-1251nr HP laptop with standard hardware.
In bash when I browse the command history using the up/down arrow keys the input line changes rather slowly.
For example, when I am on the history command
Code:
And the next command I go to is
Code:
The terminal input line deletes each character from the beginning and changes something like this:
Code:
But going the opposite direction, from
Code:
To
Code:
Is instant.
The effect does not happen with VESA turned off. I've used VESA on other computers without this problem.
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May 2, 2010
My system is (and was) Slackware 13 64bit I had DFI LanParty NF4 with AMD Athlon64, 2GB (dual channel) of RAM and Gigabyte GeForce 250 1GB. Now I have Asus P6X58D Premium with Intel i7 960, 6GB (triple) of RAM and the same graphics card + 3 internal SATA hard disks (no partitions change). I replaced hardware and noticed a performance drop.
In text console it looks like slow screen refresh. Also visible during boot when next line of text appears with a delay. I can even see as midnight commander blue window unfolds from the top of the screen when I start it. Switching from text to X takes more time. File copying takes more time. I have Xp guest in VmWare Workstation. Windows runs noticeably faster. I have reinstalled Slackware and changed (in BIOS) default IDE mode for SATA to AHCI. Still slower then with previous hardware. Maybe I am too oversensitive now, but I think moving around in BIOS is not smooth either.
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May 10, 2011
I'm the only person seeing this: xpdf is slow to render PDFs and navigating through a document is ponderous. The problem is there on my laptop ( Core i3 ) and my desktop ( Core i7 ). I played with the ./configure options in the Slackbuild and deleting the -mtune=i686 option made it much more responsive. It's so bad I've got Debian on a separate partition and I boot into that if I need to look at PDFs.
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Sep 27, 2009
Reverse dns lookup in C?
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Oct 23, 2009
I have the following bind9 configuration, and I'm trying to resolve reverse lookup IP address to name.
$ttl 38400
mydomain.org.INSOAmyhosting.com. (
1243281304
10800
[code]...
** server can't find 1.2.3.4.in-addr.arpa: NXDOMAIN
Is my PTR wrong, or what do I need to have the reverse lookup working ?
Note: I replace real IP by 1.2.3.4, same for my domain name.
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