[Dnsmasq-discuss] Bug (sort-of): New link for dhcp-authoritative at ISC
The ISC has moved the explanation of an authoritative DHCP server, so the link in the sample configuration file is stale. The explanation is now located here: https://www.isc.org/files/auth.html Thanks much for dnsmasq!
[Dnsmasq-discuss] Can one produce a list of IP's assigned by DHCP
other than by perusing the log? I am trying to research a situation in which it appears (sic) that dnsmasq assigns an address and then when asked if it exists answers it does not. My newbie status means I could have any of this wrong... TIA Bernard Higonnet
Re: [Dnsmasq-discuss] Can one produce a list of IP's assigned by DHCP
if im not mistaken, you can pass a SIGUSR1 signal to the dnsmasq process... it should send what's inside to the log... Check here: http://www.thekelleys.org.uk/dnsmasq/docs/setup.html under Other configuration details: Sending SIGUSR1 (killall -10 dnsmasq) to the dnsmasq process will cause to to write cache usage statisticss to the log, typically /var/log/syslog or /var/log/messages. 2010/12/20 Bernard T. Higonnet bth...@higonnet.net other than by perusing the log? I am trying to research a situation in which it appears (sic) that dnsmasq assigns an address and then when asked if it exists answers it does not. My newbie status means I could have any of this wrong... TIA Bernard Higonnet ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss -- Atentamente Santiago Zarate Consultoria de Software +(58) 416 911 3678 santi...@zarate.net.ve «Dar un nuevo paso, articular una nueva palabra, es lo que la gente mas teme.» - Fyodor Mikhaylovich Dostoyevsky
Re: [Dnsmasq-discuss] Can one produce a list of IP's assigned by DHCP
For all of my installations, the list of current leases is stored at: /var/lib/misc/dnsmasq.leases Thank You, Justin McAteer On Mon, Dec 20, 2010 at 3:59 PM, Santiago Zarate santi...@zarate.net.ve wrote: if im not mistaken, you can pass a SIGUSR1 signal to the dnsmasq process... it should send what's inside to the log... Check here: http://www.thekelleys.org.uk/dnsmasq/docs/setup.html under Other configuration details: Sending SIGUSR1 (killall -10 dnsmasq) to the dnsmasq process will cause to to write cache usage statisticss to the log, typically /var/log/syslog or /var/log/messages. 2010/12/20 Bernard T. Higonnet bth...@higonnet.net other than by perusing the log? I am trying to research a situation in which it appears (sic) that dnsmasq assigns an address and then when asked if it exists answers it does not. My newbie status means I could have any of this wrong... TIA Bernard Higonnet ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss -- Atentamente Santiago Zarate Consultoria de Software +(58) 416 911 3678 santi...@zarate.net.ve «Dar un nuevo paso, articular una nueva palabra, es lo que la gente mas teme.» - Fyodor Mikhaylovich Dostoyevsky ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Can one produce a list of IP's assigned by DHCP
If you are interested I have a script that parses the configs, finds all the hosts files being used and parsed the leases file then spits out a hosts file format file of everything dnsmasq is resolving On Mon, Dec 20, 2010 at 3:44 PM, Justin McAteer jus...@jmcateer.com wrote: For all of my installations, the list of current leases is stored at: /var/lib/misc/dnsmasq.leases Thank You, Justin McAteer On Mon, Dec 20, 2010 at 3:59 PM, Santiago Zarate santi...@zarate.net.ve wrote: if im not mistaken, you can pass a SIGUSR1 signal to the dnsmasq process... it should send what's inside to the log... Check here: http://www.thekelleys.org.uk/dnsmasq/docs/setup.html under Other configuration details: Sending SIGUSR1 (killall -10 dnsmasq) to the dnsmasq process will cause to to write cache usage statisticss to the log, typically /var/log/syslog or /var/log/messages. 2010/12/20 Bernard T. Higonnet bth...@higonnet.net other than by perusing the log? I am trying to research a situation in which it appears (sic) that dnsmasq assigns an address and then when asked if it exists answers it does not. My newbie status means I could have any of this wrong... TIA Bernard Higonnet ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss -- Atentamente Santiago Zarate Consultoria de Software +(58) 416 911 3678 santi...@zarate.net.ve «Dar un nuevo paso, articular una nueva palabra, es lo que la gente mas teme.» - Fyodor Mikhaylovich Dostoyevsky ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Can one produce a list of IP's assigned by DHCP
Justin McAteer wrote: For all of my installations, the list of current leases is stored at: /var/lib/misc/dnsmasq.leases Turns out that in my FreeBSD 8.1 installation, dnsmasq.leases can be found in /var/db/ and was exactly what I was looking for. Thanks!! Bernard Higonnet
Re: [Dnsmasq-discuss] Can one produce a list of IP's assigned by DHCP
Well, regardless, enjoy my script, we use it to make a hosts file that can
be distributed to other dnsmasq servers of for a kind of
replication technique. It does what we want it to, you may have to change
line 24 to point to the correct leases file
On Mon, Dec 20, 2010 at 5:14 PM, Bernard T. Higonnet bth...@higonnet.netwrote:
Justin McAteer wrote:
For all of my installations, the list of current leases is stored at:
/var/lib/misc/dnsmasq.leases
Turns out that in my FreeBSD 8.1 installation, dnsmasq.leases can be
found in /var/db/ and was exactly what I was looking for.
Thanks!!
Bernard Higonnet
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#!/usr/bin/python2
import sys
import os
import subprocess
import optparse
import time
class DNSData(object):
'''
Dumps DNS Data into a hosts file.
'''
def __init__(self, opts):
self.opts = opts
self.ips = set()
def _get_hosts(self):
'''
Run the host command on all the addrs...
No, run nmap...
No, parse the leases file and then run host on all of the leases
'''
hosts = {}
leases_fn = '/var/lib/misc/dnsmasq.leases'
for line in open(leases_fn, 'r').readlines():
self.ips.add(line.split()[2])
for ip in self.ips:
h_cmd = ['host', ip]
out = subprocess.Popen(h_cmd,
stdout=subprocess.PIPE).communicate()[0]
if out.count('not found'):
self.ips.remove(ip)
continue
hosts[out.split()[-1][:-1]] = ip
return hosts
def _get_static(self):
'''
Parses the dnsmasq configuration and adds all static hosts files to the
exported hosts file
'''
static_lines = []
addn_hosts = []
dnsc = '/etc/dnsmasq.conf'
for line in open(dnsc, 'r').readlines():
if line.startswith('addn-hosts='):
addn_hosts.append(line.split('=')[1].strip())
for addn in addn_hosts:
if not os.path.isfile(addn):
continue
for line in open(addn, 'r').readlines():
if line.startswith('#'):
continue
static_lines.append(line)
return static_lines
def gen_file(self):
'''
Generates the string used in the hosts file
'''
hosts = self._get_hosts()
static = self._get_static()
hfile = ['## Begin Generated Hosts ##\n']
for host in hosts:
line = hosts[host] + '\t\t' + host
hfile.append(line + '\n')
hfile.append('# Begin Static Hosts #\n')
for host in static:
hfile.append(host)
hfile.append('# End Static Hosts #\n')
hfile.append('## End Generated Hosts ##\n')
return hfile
def save_hosts(self, hfile):
'''
Save the hosts file.
'''
if not os.path.isdir(os.path.dirname(self.opts['location'])):
os.makedirs(os.path.dirname(self.opts['location']))
open(self.opts['location'], 'w+').writelines(hfile)
def start_rsync(self):
'''
Start the rsync daemon
'''
c_path = '/var/tmp/host-sync.conf'
conf = ['[hosts]\n',
'path = ' + os.path.dirname(self.opts['location']) + '\n'
'read only = yes\n']
open(c_path, 'w+').writelines(conf)
r_cmd = 'rsync --daemon --config=/var/tmp/host-sync.conf --port=9426'
subprocess.call(r_cmd, shell=True)
def run_daemon(self):
'''
Start dnsdump running as a daemon.. Ok, I don't have the pid fork stuff
in here, run this in the background!
'''
self.start_rsync()
while True:
self.save_hosts(data.gen_file())
time.sleep(600)
def datacenter():
'''
Returns the datacenter number
'''
d_cmd = ip a | grep 172 | grep brd | awk '{print $2}' | cut -d. -f2
return subprocess.Popen(d_cmd,
shell=True,
stdout=subprocess.PIPE).communicate()[0][0]
def detect_networks():
'''
Parse all of the dnsmasq configuration files
'''
dnsc = '/etc/dnsmasq.conf'
nets = set()
conf_files = set()
for line in open(dnsc, 'r').readlines():
if line.startswith('domain='):
dom = line.split(',')
if dom.__len__() 1:
nets.add(dom[1])
elif line.startswith('conf-dir='):
cdir = line.split('=')[1].strip()
if os.path.isdir(cdir):
for fn_ in os.listdir(cdir):
if fn_.endswith('.conf'):
conf_files.add(os.path.join(cdir, fn_))
for cfn in conf_files:
if not os.path.isfile(cfn):
continue
for line
[Dnsmasq-discuss] dnsmasq has issued a lease, but doesn't seem to know about it!??
Hello, I have a machine, Zazalight, which has requested and received a lease, as evidenced by the following line in dnsmasq.leases: === moto in the following is the machine running dnsmasq moto# cat /var/db/dnsmasq.leases 1292919092 00:16:d3:3b:4f:15 192.168.3.76 Zazalight 01:00:16:d3:3b:4f:15 moto# host -v 192.168.3.76 moto Trying 76.3.168.192.in-addr.arpa Using domain server: Name: moto Address: 192.168.3.113#53 Aliases: Host 76.3.168.192.in-addr.arpa. not found: 3(NXDOMAIN) Received 43 bytes from 192.168.3.113#53 in 2 ms === I fear that I've done something wrong, forgotten some option, which is so simple it's beyond dumb. Ready for the worst... TIA Bernard Higonnet
