Say if i have a domain and i changed the registrar from nameserver1 to nameserver2.For example, if a client side cache isn't cleared, and if the client requests DNS query, would it be possible for the old nameserver1 to respond to the query? would nameserver1 never respond to DNS request?
View 1 RepliesI wanted to know how can I set a period of time to a tcp connection to wait for request or respond for tcp block read. which system call or function I can use? Does any body know a very simple quick and easy reference on web for socket programing that has lots of socket programing examples in it?
View 1 Replies View Relatedhow to redirect all client http request to https request in squid
View 1 Replies View RelatedJoined the Linux community last week with a clean install of Ubuntu 9.10 and the Edubuntu overlay onto my wiped Dell Inspiron 8000 with 512MB RAM (max allowed) and nVidia GEForce2 GO video card. <<lspci: 00:00.0 Host bridge: Intel Corporation 82815 815 Chipset Host Bridge and Memory Controller Hub (rev 02)
00:01.0 PCI bridge: Intel Corporation 82815 815 Chipset AGP Bridge (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 02)
00:1f.0 ISA bridge: Intel Corporation 82801BAM ISA Bridge (LPC) (rev 02)
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I am a new learner. I need a simple scripts that compute the average ping time for hosts, and the average number of hosts that respond to pings during a traceroute. I have finished the ping part but I confused how to start the traceroute part
Code:
#!/bin/bash
#!/bin/sh
txt=$*
count=0;
for host in $txt; do
echo $host
echo $( ping -c 3 $host | grep avg | sed 's@.*=@ rrt ave =@' | sed -r 's@ = [^/]+/([^/]+).*@= 1 ms@')
done;
I have a Slackware 13.0 server that is not replying to icmp pings. However, I have double checked that /proc/sys/net/ipv4/icmp_echo_ignore_all is set to 0. The weird thing is I can run nc -v slackware 22 from any computer on my lan and the banner comes up just fine. The nic is on the same netmask and broadcast as all the other computers on my lan. I can log into it as well, it just doesn't respond to pings. I can even ping other computers and get replies just fine when pinging from inside the Slackware server.
I have even added an iptables INPUT rule for -p icmp -j ACCEPT. Although I've never had to do this. I ran tcpdump -vv icmp and I can see ping requests coming into the computer, however slackware simply doesn't respond. What could be causing this? A corrupt arp cache? It's been happening for more than a few hours so I wouldn't think so. How can I view the arp cache table? How do I clear it?
I have a VPS CentOS 5.5 32 bits. It does not answer any DNS request made to the server.
I need to configure Bind to answer these requests.
I have been reading about that for several days and here: [URL]
But it is uncompleted.
I need to configure these too:
chroot DNS with BIND avoid cache poisoning avoid being an open resolver port randomization
I have found several tutorials but all of them have different points of view.
I am looking for a good tutorial that has everything:
Setting up bind on CentOS 5.5 chroot DNS with BIND avoid cache poisoning avoid being an open resolver port randomization configure iptables for bind
Just trying to get some packages upgraded on Debian/Lenny, esp. PHP5, but I always get the NO_PUBKEY error from php53.dotdeb.org.
I resolved the same problem with security.debian.org by doing:
apt-get install debian-keyring debian-archive-keyring
apt-key update
but no luck on dotdeb. trying:
gpg --keyserver keys.gnupg.net --recv-key A2098A6E
I am working on a simple script that should take two command line arguments, a [number] and a [name]. The first thing the script should do is check to make sure that no more and no less than two command line arguments have been entered when calling the script - an error message should be delivered if the condition is not true.
If two args have been entered, then the message 'processing "scriptname"' should appear, where scriptname is the name of the script being called. The script should then write to the screen "Hi [name]!", and should write this phrase [number] of times. For example, the command $ myscript 2 joe would produce the output: I have read the manual many times looking for examples, and I am very close by virtue of my own efforts. Further, I have searched these forums and others for good examples, which have also gotten me very close. Still my script is not completing the objective, and I am wondering if someone could point me in the right direction. Script:
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i'm new in linux world....i need a tips on installing fedora 11 for my dvr also basic tips on formatting and mounting drives.
View 9 Replies View RelatedOn what version of fedora, ns2.31 can be installed?
View 14 Replies View RelatedIf a request comes in for a page, which Virtual Machine (assuming there are several on the machine) does the request go to?
View 1 Replies View RelatedI've checked my /var/log dir and can't find anything.
View 1 Replies View RelatedI had rhn supported system and there I cant find any respos in /etc/respos.d/ directory. If I enter yum list still I can see the list of rpms. Now my question is I need to install request tracker in this system. I had d/l the .gzip file and extracted too. Its asking to make a repository. Now I had made one repo in /repos.d/ dir. But didn't able to find out what to write in baseurl (had also extracted the packages in /var/ftp/pub/ so do I need to write ftp://ip/ or what). ftp/http. I had extracted the packages in /root.
View 2 Replies View RelatedI've been trying to figure out what Apache directive is causing this:
Code:
[Thu Nov 11 15:00:00 2010] [info] [client x.x.x.x] Request header read timeout
My apache version is:
Apache/2.2.14 (Ubuntu)
I have google searched for this error but cannot seem to find any matches or information.
the thing is I need to install request tracker in my ubuntu system.i had installed all the applications which are needed in this. this is the output of make testdeps
SOME DEPENDENCIES WERE MISSING.
ICAL missing dependencies:
Data::ICal ...MISSING
STANDALONE missing dependencies:
HTTP::Server::Simple::Mason >= 0.09 ...MISSING
GPG missing dependencies:
GnuPG::Interface ...MISSING
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i had tried to install all those in cpan promt as well as in #. but didnt able to suceed.
*Am trying to configure on machine ?MyServer.net? apache on port 8586. *Two applications run on same machine on different ports Jenkins on 8081 and Hudson on 8080.*Request coming to 8586 port should redirect to either 8080 or 8081 on one condition. *The request from client machine coming to MyServernet:8586 looks something like this ?MyServer.net/job/<JOBNAME>/build?token=TOKEN?.
Condition
If <JOBNAME> is ?naveen? apache should redirect to 8081.
If <JOBNAME> is not ?naveenn? apache should redirect to 8080.
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I'm having some basic doubt! Consider 5 virtual domains has configured under a same server. I mean 5 different domains under same IP. Eg. mydomain1.com and mydomain2.com have IP 208.27.1.89. So when web browser request for mydomain1.com name server return IP address 208.27.1.89. Then browser contact IP 208.27.1.89 on port 80. Here comes my question how does apache know that the browser is looking for mydomain1.com not mydomain2.com. How apache differentiate the request for it's virtual hosts? By the way, what is a virtualhost ?
View 1 Replies View RelatedI have problem when I deloy project honeynet with honeywall 1.4. can upload again for me honeywall version 1.3 or 1.0.
View 5 Replies View RelatedWhat types of request for Samba & NFS comes in production support?
View 4 Replies View RelatedI am new in linux,I installed apache-tomcat on fedora.I can view all web pages on localhost:8080 but when I try to view them by server's url address from another computer, I don't get respond.Can it be a firewall problem or something else?
View 4 Replies View RelatedHow does the read & write request from a command prompt go to usb & retrieve the file ? When a read request is given , I/O manger sends the request to file system manager (FSM) and from FSM to mass storage device drivver and from there to mass storage , is this right in Linux ?
View 1 Replies View RelatedI've been struggling with what should be an easy change on our Squid proxy.Basically I'm attempting to allow the ranges:
IP range is:
209.197.0.0/19
Address: 209.197.0.0
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I'm trying to manually connect my wireless adapter to my router using WPA. I'm using Madwifi drivers for my D-Link DWL-G630. I keep getting the same error " Association request to the driver failed". I can connect to my router using wep through the GUI. I can not connect using the terminal. I created my /etc/wpa_supplicant.conf file
ap_scan=1
ctrl_interface=/var/run/wpa_supplicant
network={
ssid="NYNET"
scan_ssid=0
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I run these two commands
sudo ifconfig wlan3 down
sudo dhclient -r wlan3
the I run
sudo wpa_supplicant -Dwext -iwlan3 -c/etc/wpa_supplicant.conf -dd
jmorales@jmorales-laptop:~$ sudo ifconfig wlan3 up
jmorales@jmorales-laptop:~$ sudo dhclient -r wlan3
Internet Systems Consortium DHCP Client V3.1.2
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I am sending message from linux to windows system as follows echo "test"|smbclient -M <IP Add>But I am getting "session request failed" message . How can I solve it? <Ip Add> in network and reachable.
View 1 Replies View RelatedI installed amanda on a client that uses Red Hat Enterprise Linux 4. When I do an amcheck from the server, I get this:
Amanda Backup Client Hosts Check
--------------------------------
WARNING: 192.168.3.23: selfcheck request failed: recv error: Connection reset by peer
Client check: 1 host checked in 0.022 seconds. 1 problem found.
I am using bsdtcp. I get an ACK error if I switch the client to bsd authentication. I read that I should enter servers adress to hosts file in /etc/ directory?
I am trying to backup a client called greetings.com, but when I do an amcheck on the server, I get:
WARNING: greetings.com: selfcheck request failed: Connection refused
I'm currently using ubuntu 9 for 4 years, then I decided to upgrade to ubuntu 10.4 then after wasting long hours of downloading updates and reinstall of new packages my computer request to restart the machine. after the boot sequence of grub my computer hangs up and no display at all, I tried to select different kernel but it won't help me at all what's the possible error after upgrading
View 6 Replies View RelatedWhen I am using emacs under GNU Screen, if I call C-x C-s screen hangs and does not respond to any keyboard input.
I can't reproduce this, but at least one time per day I have to kill my screen session and restart it.
I have proxy running. I have seen LAN machines sending packets by iftop -P -F 192.168.10./24
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How do i set my iptables so that I can only send and recieve http,smtp,ssh,dns,dhcp request in and out of the proxy
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