When an application invokes getnameinfo, it seems that it takes a while.
Internally, os sends a request to dns server and waits for a response, but the response is timeout after 5 seconds.
1. why does the response take so long?
2. is the timeout value configurable? if yes, what will it impact if the value is changed and where to change this value?
3. is there other way to find out domain name by ip address?
I set the default os to boot as windows 7 with a timeout of 1 second. I thought that this would be enough time to switch os ubuntu when i need to, but I am unable to. How can i reset the timeout to 3 seconds? I also cannot view the ubuntu partition within windows because of ubuntu's file system.
View 9 Replies View RelatedI have a web application that runs through thousands of IP addresses and checks if they're online. Basically, if a server uses more than 250ms to respond, it's considered offline in our case. It would be an enormous timesaver if we could get the ping command to give up after about 300 ms, instead of what seems to be the minimum value of the -W parameter, 1 second.
View 2 Replies View RelatedIm trying to run a headless box but grub has no time out so it sits until I plug in a keyboard and hit enter. I have tried to put a timer on using 'startup-manager' but this seems to be ignored.
When it boots I get GNU GRUB version 1.99~rc1-13ubuntu13 and a list of operating systems. Unless I hit enter it will wait forever.
"How can I reduce TCP timeout " for delay which is normally in minutes. I want to reduce it in miliseconds or 1-2 seconds.
View 3 Replies View Relatedsend pings test for hours to my router 10.0.1.1 and the ping test is perfect, never fail. 8024 send packages, 8024 packages received.
Now but when make the same ping tests for hours to my linux CPU, i saw that sometimes the ping test say timeout Whan can i do? Can i edit the timeout value for in my linux cpu? what you think? This is making me crazy because me linux cpu is loosing packages..
Code:
[root@TornadoR3 ~]# ifconfig
eth1 Link encap:Ethernet HWaddr 00:08:02:F9:AB:FF[code].....
I'm trying to get granular with TCP, one of the answers I can't seem to find is. When a client server connection is lost without closing, how many duplicate ack's are sent until the session is closed. I've kind of figured out the the sender will continue to retransmit a segment for about 9 mins if not Ack'd. going from 1.5,3,6,12,24,48 and the continuing with 64 seconds up to around 9 minutes before is resets the session. but whats happening at the other end.?
View 1 Replies View RelatedI have a named server that has forwarders setup. Quite often the dns server where I forward would not respond right away and the query would fail. It would then also cache the empty result for 3 hours and I would need to restart the service or clear the cache. how would I be able to specify a value for forwarders timeout, just like on Windows DNS.
BIND 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3
I was trying to rsync datas from one server to a remote server. There is a firewall between the two servers and the 22 port is open for the servers.
Attached the error that I got.
I am geting a bit confused regarding the autologin of a user , and in need of help desperately. Could anybody please help me with the below queries :
How can we set autologin for any normal user in RHEL5 ? Also, How can we then logout such a user later, as we can't logout such user normally ? How to set timeout for such autologin users ?
I am on CENTOS 5.4 64 Bit Servers.
I have created a script which runs some commands on remote servers.
I am stucked when a server is not responding timely.
I want to set a timeout say after 10 seconds, if I am unable to login (for whatever reason) I should be dropped back at the shell.
I tried using LoginGraceTime but it is not working for me as below:
Code:
LoginGraceTime 10s
or
LoginGraceTime 10
connect a PC to the router which ip address is 10.0.0.2 and its arp table:
~ # arp -n
Address HWtype HWaddress Flags Mask Iface
10.0.0.2 ether 00:21:27:AC:3B:19 C * eth0.1
[code]...
I have centos 5.3 server and the problem is the ssh timeout time set to 10 minutes of inactivity. I want to set the timeout to 1 hour, how can I set the timeout time?
View 1 Replies View RelatedThe normal distros now ship with an executable called "timeout". Will CentOS be including this new "timeout" command in an upcoming release?
I read that CentOS did not include it (yet) because of a name conflict with another package.
I am running debian 8 stable version (which I starting to think not that "Stable") and when i surf web pages its ok except the fact that I am too often get connection timeouts then i need to press "enter" in the ur box to try again and then its maybe work if not I am going to press another "enter" on the url box until i have connection to the site its important to say its not a isp or hardware problem. I run the web with no problems in that other operating system which I am not getting back to.....
View 14 Replies View RelatedProblem occured yesterday and has added 3 mins to my boot time. all i can say about it is that it occured after a yum update and then a crash while using wine. i navigated to the file but really cant say much about it. however the pci call there makes me wonder if it is related to the post below.
Starting udev:
Wait timeout. Will continue in the background.
I seem to be having this problem with Fedora 14:
[URL]
My wireless device is an Intel Ultimate N WiFi Link 5300, driver is iwl4965. Post-suspend I see exactly the same messages as in that Ubuntu report. Restarting NM does not help.Is there a way to lengthen to timeout or kick the device in to life some other way?
I am running Ubuntu 10.10. Grub timeout is not working and I have to press enter every time I switch on the computer after the Grub menu loads. Here is my /boot/grub/grub.cfg file
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub[code]......
Whenever my computer's idle for about 2 minutes, it automatically goes to the login screen. How do I prevent this from happening?
View 4 Replies View RelatedMy KNode gets a 'timeout on server' when loading newsgroups. I've read that you should tweak the server timeout (settings -> configure knode -> accounts newsgroupserver -> edit -> server timeout). However, when I try this out the properties window of my news server has no 'server timeout'. What can I do now?
(KNode version 4.4.8, KDE version 4.4.5)
I have successfully setup FreeNX on Suse 10.2, Suse 11 (32 and 64 bit), and am now attempting on RHEL 5.4 (32 and 64 bit). For both distributions, the client fails to times out at exactly the same point - downloading the session information. Here are the steps I took to install/configure.
[Code].....
Running openSUSE 11.2 with Gnome. After a relatively short period of time, screen goes blank, and when I click on it, I get presented with password prompt, and when I enter it, I'm back where I left off. I don't see how to change this, and all the time I've spent so far in YaST trying to find out where this setting is kept and how to change it has been wasted effort. So now I'm asking: how do you change this to something a little more reasonable?
I'm taking an online SuSE LINUX class, and as they cover different topics, I jump over to the Linux system (which I have running in a vm under VMWare server on W2K3) and try stuff out, and most of the time I have to enter my password because I was away too long.
I'm running Fedora Core 8 (fc8) and when i make ping to that server, sometimes i get time request timeout and i don't know why...
I have the CPU of this picture and the network device is integrated look my CPU
[url]
My spouse bought me a Seagate BlackArmor NAS 110 recently, and I finally had time to connect it to our home network. I have samba installed, and my linux box (opensuse 11.1) can see the NAS, but when I try to open the network connection I get a "timeout on server" message. I bumped up the network connections, but still no luck. The odd thing is that last night I was able to connect and see the public folders for awhile. And her Windows Vista computer seems to connect without a problem after using the seagate software.
I'm no network admin, and have exhausted my resources on this.
I installed linux 2010 mandriva on a (embeded) system,and i run several server programs on it that accept connections from clients. clients are connected to server(s) and every things is ok, but when i go to home and back to my work tomorrow, i see no data can be sent to server programs and this problem exists until i restart the server programs or reconnect tcp client programs. this problem occurs even when both client and server programs executed on the same (embeded) system.why this happens? i checked by netstat and see that server ports exists in the list(and not closed by kernel) but it seems kernel or an application above it prohibit data transmission.i changed the OS and installed ubuntu but the problem exists.
View 5 Replies View RelatedI am trying to set up an ssh server on my Debian squeeze box so that I can access it remotely when I'm not at home. I connect to the internet through an at&t 2wire modem/router. First off, I *can* ssh into the machine from inside the local network, e.g.
[Code]...
Nmap done: 1 IP address (1 host up) scanned in 2.12 seconds Playing around with Nmap, I also found that it only sees port 50001 as open.
here is my grub.con
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
[code]...
I want to kill a process when timeout where 2 processes are running parallel or simultaneous in a same user witout effecting the another process,i have used the command
ps -ef |grep user
kill -9
but its killing another process suppose if i try to kill with processname sub processes in that process converting as daemon process and its not killing sub processes when killing parent process.
I am using samba 3.0 on rhel-4, it works fine i am getting the share folder in linux and windows xp as well with username and password for first time only then for next time it will not ask me the username and password for samba user. Actually i want to fix idle-timeout and password authentication for user every time the user want to access the samba share folder.
View 2 Replies View RelatedI have an httpd server with mod_proxy that forward any request to an another server.
the flow is: client --> requesto proxy [url]forward to server [url]
I'm reading this error in my httpd log in LogLevel debug (after some request):
Code:
Code:
and this is my ssl.conf in /etc/httpd/conf.d
Code:
how I can find the root cause?