Server :: Dnsmasq.lease File + Description Of Its Contents?
May 4, 2011iam running dnsmasq on my target board , my dnsmasq.conf has following configurations
# cat /var/etc/dnsmasq.conf
strict-order
localise-queries
[code]....
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Server :: Many Entries In DHCPD Lease File
May 10, 2011I've a question about how work dhcpd. I'm on CentOS 5.6. I has a dhcpd server on it. His configuration:
authoritative;
ddns-update-style none;
deny declines;
deny bootp;
option domain-name "mydomain.domain";
option domain-name-servers IP;
option routers IP;
option time-offset -18000;
#option ntp-servers IP;
subnet IP netmask MASK {
range IP START IP END ;
default-lease-time 86400;
max-lease-time 172800; }
And now in the /var/lib/dhcpd/dhcpd.lease file, there few entrie for the same IP. Sometime I've ten same entries for the same IP. Can I have only one entrie by IP? Is there any problems in my configuration of my dhcpd.conf file?
Debian :: Running Dnsmasq In Lenny - Wvdial Connecting But Dnsmasq Doesn't Work
Dec 30, 2010I am running dnsmasq in debian lenny, wvdial connecting but dnsmasq doesn't work, the /var/run/dnsmasq/resolv.conf file is empty this is /var/log/syslog:
The /etc/resolv.conf and /etc/resolvconf/run/resolv.conf is ok:
This is my /etc/dnsmasq.conf:
[url]
Ubuntu :: Dnsmasq Will Not Apply Changes In /etc/dnsmasq.conf?
Dec 27, 2010ubuntu: 10.04dnsmasq: 2.52-1ubuntu0.1I've installed dnsmasq and it is performing DNS duties correctly. I'd like to limit access to the dnsmasq service to a specific address or interface. I've tried adding variations and combinations of the following to /etc/dnsmasq.conf:
Code:
interface=eth0
and
[code]....
General :: Grep Contents Of File On Remote Server?
Sep 24, 2010I am attempting to grep the contents of a key file I have SCP'd to a remote server. I am able to cat it:
Code:
[bluethundr@LBSD2:~]$:ssh root@sum1 cat /root/id_rsa.pub
root@lcent01.summitnjhome.com's password:
[code]...
Software :: Create Server Program That Will Stream Contents Of File To Any Client
Apr 26, 2011I need help to do a program that emulates the following shell command line:"sort </etc/passwd | less".Using a socket in a connection-oriented setup.First the contents of the file /etc/password are being fed into the sort program. The sort program is then sorting the contents of the file and sending it to another programm called less. Less is paging the results so that you can see one page of the results at a time.I know that i can solve the problem this way:
1. Create a server program that will stream the contents of a file to any client that connects to it
2. Create a client application that will connect to the server and download the contents of the file. The program should then sort the file. After sorting the file the client should connect to the "less" program and send the sorted results
3. Create a server program that will listen for connections and download whatever is sent to it. It will then display that data one page at a time.
Server :: Script For Clearing The Dhcp Server Lease?
Dec 3, 2010I have a openSUSE10.2(X86-64) Linux DHCP Server in my environment. It has a lot of VM's and Desktop systems which get added continuously. Also, it has a lots of Static-IP entries.Part-IIssue:The DHCP Server stopped leasing the IP's somehow.Workaround:1. Stopped the dhcpd service. (service dhcpd stop)2. Navigated to /var/lib/dhcp/db folder.3. Deleted the "dhcpd.leases" and "dhcpd.leases~" files.4. Recreated the "dhcpd.leases" file. (touch dhcpd.leases)5. Started the dhcpd service. (service dhcpd stop)
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May 9, 2011I would like to be able to schedule a limit for an IP connection for my kid's computers/iPods. Since I know the MAC addresses of their various hardware items, is there a way to shut down their connectivity at a particular time via the DHCP server or perhaps a firewall rule?
Running Ubuntu 10.04 and Shorewall is being used for the firewall.
Slackware :: DHCP Server Is Not Offering A Lease (WEP Network)?
Mar 28, 2010Looking at var/log/messages below, it looks like I'm not being offered a lease on this particular network. I can successfully connect to the network because iwconfig wlan0 reveals my network ssid and the access point I'm connected to. But pinging google.com gives me nothing..
Code:
root@darkstar:/# tail -f var/log/messages | grep dhcpcd
Mar 28 15:45:42 darkstar dhcpcd[5329]: wlan0: adding IP address 169.254.76.182/16
Mar 28 15:46:13 darkstar dhcpcd[5329]: wlan0: adding IP address 169.254.76.182/16
Mar 28 15:46:44 darkstar dhcpcd[5329]: wlan0: adding IP address 169.254.76.182/16
[code]...
General :: Dnsmasq Without Altering /etc/hosts File Manually?
Jul 19, 2011I've trying to get dnsmasq working as a combined dns and dhcp server. It's infuriating so far... In short, the DNS works fine for anything added to /etc/hosts, and the dhcp works fine, but the dhcp is not updating the dns with hostname information from clients.
The outcome of this is that i can only ping a node by hostname if i know it's address, which means setting a static dhcp allocation and putting the hostname into /etc/hosts manually, which is very annoying and kind of defeats the poit of dhcp. There must be a way to get dnsmasq to update the hosts file, surely The clients aren't using fqdn's if that matters, and i think i've tried every combinination of "expand-hosts" and "domain=" following is the dnsmasq config file contents:
domain-needed
bogus-priv
except-interface=tun0
[code]....
CentOS 5 Networking :: DNSMasq Update Looking For Config File
May 26, 2010I did a yum update this morning that included a dnsmasq update. Subsequently, for an unrelated reason, I restarted dnsmasq, but it failed because /etc/dnsmasq.d didn't exist. It looks like my /etc/dnsmasq.conf file now includes "conf-dir=/etc/dnsmasq.d" at the end. Since dnsmasq was starting and I didn't remove dnsmasq.d, I assume this line was added by the update. Commenting the line resolves the issue.
An alternative hypothesis, given that I don't really know what the state of /etc/dnsmasq.conf and /etc/dnsmasq.d/ was before the update, might be that the directory did exist, but was removed by the update. I find this the least likely of my 2 stated hypotheses. (There are other hypotheses, but I think they are even less likely). Am I correct is concluding the conf-dir line was added by the update? If so, shouldn't the updated RPM create the directory during install?
Server :: Dhcpd - Keep Lease Even If Device Sends Expiration Packet?
Jul 13, 2011I have a dhcpd server running CentOS and Webmin. I noticed in my lists of expired leases some of the lease times are only a few hours even thought I have lease length set to 1 week. I want to keep a lease for a week even if the device requests that it be expired. Is there some way I can do this in dhcpd? I am attaching a screenshot of some of my lease times listed in Webmin.
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Jul 15, 2010GUys im trying to setup a linux router w/in our network here in school, and i was using a fc13 as my linux router, i already setup iptables for linux masquerading.. i have a 20 winxp client connected to the said router with an ip of 192.168.0.1, on each client i manually configured all of the clients ip address.. i was wondering if i could use a dhcp server to ease the manual configuration.., i already installed a dhcp server. Note im a newbie, thus dhcp server will also provide dns resolution to winxp clients??,, on some thread that i read if the client is linux.. you will just need to add nameserver to the /etc/resolv.conf for each linux clients.. the clients that im using here is winxp, i was wondering if i could setup the server to distribute dns & also a dynamic ip to all the clients..w/c 1 is better?? DCHP server or dnsmasq??
View 1 Replies View RelatedServer :: DNSMASQ - How To Automatically Add Hostnames
Jan 1, 2011I am using DNSMASQ on a Debian 5.0.6. server. I configured DNSMASQ as DHCP server, and want it to answer local DNS requests. However, I am unable to use hostnames, and am forced to use IP addresses when pinging, opening a ssh shell on a remote server, opening a remote desktop to a windows system etcedtera.
Because I use DHCP, I can not hard code the ip addresses in the hosts file. How do I configure DNSMASQ so that i can use hostnames for computers who get their IP addresses from DHCP.
Server :: Setup A Net With A Dhcp + Dns Server Using Dnsmasq
May 18, 2010I've set up a very simple net with a dhcp + dns server using dnsmasq. It works but the server itself cant resolv clients names. Clients do resolv without any problem my /etc/dnsmasq.conf
[Code]...
Server :: View The Dhcp Clients Over Dnsmasq?
Jul 23, 2010Is there anyway how to view the dhcp clients over dnsmasq?
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Aug 28, 2010Is there some file in Linux that enumerates and describes mount options for file systems like /etc/services describes ports?
View 2 Replies View RelatedServer :: Folder And Description Appearance Using Apache?
Mar 26, 2011I have a personal webserver and webpage that makes my mp3 collection available to me on the network. It's more of a learning experience than anything else. Anyway there are two issues that I have found some information on, but I haven't been able to make sense of what I've found.
1. I would like directories to appear first and individual files to appear afterwards.
2. I would like for the name column width to match the longest name appearing in that column.
I am attaching a screenshot of the page for clarification.
CentOS 5 Networking :: Dnsmasq Dhcp - DNS Server Does Not Respond
Jan 9, 2011I got a CentOS server setup as a dhcp server using dnsmasq. I followed this guide more or less: [URL] So, the problem seems to be concerning the DNS server on the clients. In windows I get the "limited connectivity" icon for the network, and when I select troubleshoot it says the DNS server does not respond. Issuing 'ipconfig /all' clearly shows the IP of the CentOS machine as the DNS server, which should be correct, yes?
ETH0 is working as WAN connection and that works great.. no problem with the WAN connection at all on the CentOS machine. ETH1 has the IP 192.168.0.1 and mask 255.255.255.0 When starting eth1, it sometimes says that it can't start eth1 because the IP 192.168.0.1 is already in use.. but that is most certainly not the case. Maybe there's some kind of issue here that messes with the DNS? What's mind boggling is that it works great on a linux machine (dhcp client) and on a windows xp machine. but it does not work on the windows 7 laptop and a vista laptop and a pda device.
CentOS 5 Server :: Dnsmasq Starts But Doesn't Reply To Queries
Sep 5, 2010trying to configure a Centos 5.5 server (simple file server with DHCP and DNS relay). I configured and tested the config (by 'service dnsmasq configtest') of dnsmasq and I got the message 'dnsdomain:host unknown (translation of the real message : hte inconnu) and I didn't find where I could define this host ! The hostname of the server is well defined and I can see it from all Windows PC's on the LAN. dnsmasq starts (with hte same message as in configtest) but when querying DNS from PC's te.g. trying to surf the Internet), I don't get replies (3 DNS servers are also well defined and operational).
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Oct 14, 2010I want to be able to check the contents of a text file for a specific string and remove it from the file from the command prompt. I would basically be searching through a number of files and if a specific string is found I would like it removed automatically. pretty much a find and replace, were the replace is nothing. any one got any ideas on how you would do this. I already have the search part sorted just need to be able to remove the string I don't want from the multiple files.
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Jul 12, 2010We have some large files with sampling data in it. Don't want to delete these files. But want to quickly overwrite the file with 0s and/or 1s and preserve the original file size.
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Jun 15, 2010I would like to know how I can replace a string in one file with the complete contents of another life.
View 10 Replies View RelatedProgramming :: Append Contents Of One File To Another Existing File?
Nov 17, 2008I have two files list1.cfg and list2.cfg both files contains differentrecords details like
List1.cfg
NAME1:25:C:NAME LINE1:
NAME2:25:C:NAME LINE2:
CITY:25:C:City:
[code]....
Now I want to append contents list2.cfg to list1.cfg(It ispposible using cat list2.cfg >>list1.cfg) but I want to check if content of (record) in list2.cfg is present in list1.cfg then dont append it otherwise append it.
Networking :: Configure A (openSUSE) Client To Dhcp To EBox DHCP Server - Lease An IP Address
Mar 25, 2010I am puzzled with trying to configure a linux (openSUSE) client to dhcp to eBox DHCP server. I am using dhclient to lease an IP address with dhclient eth0 -s 10.45.48.108 and get a response
openSUSE11232CL1 dhclient: DHCPDISCOVER on eth0 to 10.45.48.108 port 67 interval 4
openSUSE11232CL1 dhclient: DHCPOFFER from 10.45.48.108
openSUSE11232CL1 dhclient: DHCPREQUEST on eth0 to 10.45.48.108 port 67
openSUSE11232CL1 dhclient: send_packet: Network is unreachable
openSUSE11232CL1 dhclient: send_packet: please consult README file regarding broadcast address.
The server reports eBox141 dhcpd: DHCPDISCOVER from 00:0c:29:3e:57:a3 (openSUSE11232CL1.domain.net) via eth0
eBox141 dhcpd: DHCPOFFER on 10.45.200.2 to 00:0c:29:3e:57:a3 (openSUSE11232CL1.domain.net) via eth0
I interpret this as the server receives the request and the client accepting it but the lease does not last long and the connection breaks. what this could be and why the connection breaks? Or my undestanding is totally wrong on how it works and should work? And BTW, where is that README file that's referenced in the message I receive on the client?
Server :: Blocking Dhcpd Address Lease For Specific MAC Address?
Sep 4, 2009I hv Cent OS 5.3 installed as server. I hv a network of approx 100 desktops and laptops. For a security purpose i want to block certain laptops from gaining a the network access using dhcp. Can we block the ip address leasing if a specific MAC address request for a ip lease?
View 7 Replies View RelatedGeneral :: Grep The Contents Of A File With Another File?
Sep 25, 2010someone once told me that use can pass a file to grep and use that to search the contents of another file. if that is the case I'm not entirely sure why the following isn't working for me.
Code:
[root@LCENT01:~]#grep -i id_rsa.pub .ssh/authorized_keys
[root@LCENT01:~]#cat id_rsa.pub >> .ssh/authorized_keys
[root@LCENT01:~]#grep -i id_rsa.pub .ssh/authorized_keys
Programming :: Check If File Contents In Another File?
Nov 4, 2009i am trying to write a bash script. i have a text file called comp2.tmp which has a list of items in it
example comp2.tmp
Code:
filename.pdf
filename2.zip
filename3.ttf
and so on
I have another text file called comp1.tmp which should have the same list of files in it, but does not look as pretty
example comp1.tmp
Code:
someothertext here ...... 10/30/2009 ...... filename.pdf
=========================------------------==============
othertextagain .......... 09/28/2008 ...... filename2.zip
========================------------------===============
bunchmoretext ........... 04/12/2005 ....... filename3.ttf
and so on
i would like to check if the filenames listed in comp2.tmp exists in comp1.tmp
General :: Ubuntu - Can't See Contents Of File
Jul 29, 2010In Ubuntu 10.04, there is a certain file that appears highlighted in terminal. When I try to cat the file, it says there is no such file or directory. How can I see what's in this file? Is this a symbolic link?
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Feb 24, 2010how do I print out the contents of a file?
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