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ipfw and dhcp
Post 302454547 by mrowcp on Saturday 18th of September 2010 10:29:42 PM
09-18-2010
ipfw and dhcp
Hello,
I have a little problem with my server configuration.
So: I have two PC's with DHCP enable and both of them have two NIC's.
PC1 - le0 ADSL
PC1 - le1 192.168.10.1
PC2 - le0 192.168.10.10
PC2 - le1 192.168.20.1
One NIC on PC1 is connected to ADSL, another one have IP address 192.168.10.1
PC2 have 192.168.10.10 on the 1st NIC, and 192.168.20.1 on the 2nd.
When someone want to connect and his MAC is not configured in PC1 ( to take IP from 192.168.10.0 network ) he take IP address from DHCP from PC2 - 192.168.20.2.
The problem is that, when I type: /release /renew somethimes PC take IP address from ADSL - 192.168.1.17 How can I restrict/deny this range - 192.168.1.0?I don't wana my PC's to take IP's from there.
I try with: ipfw add 2 deny all from 192.168.1.0/24 to any;ipfw add 3 deny all from any to 192.168.1.0/24;ipfw add 4 deny all from any to 192.168.1.1 and many, many, but nothing works
And the second question is: when I ping from 192.168.10.1 to 192.168.10.10 ( another PC ), ping is < 1ms, but when I ping 192.168.20.1 ( another interface ), ping is too high ( like 2ms,8ms, 20ms and etc. ).It's not hardware problem in lan card, becouse interfaces are virtual.
I have a little problem with my server configuration.
So: I have two PC's with DHCP enable and both of them have two NIC's.
PC1 - le0 ADSL
PC1 - le1 192.168.10.1
PC2 - le0 192.168.10.10
PC2 - le1 192.168.20.1
One NIC on PC1 is connected to ADSL, another one have IP address 192.168.10.1
PC2 have 192.168.10.10 on the 1st NIC, and 192.168.20.1 on the 2nd.
When someone want to connect and his MAC is not configured in PC1 ( to take IP from 192.168.10.0 network ) he take IP address from DHCP from PC2 - 192.168.20.2.
The problem is that, when I type: /release /renew somethimes PC take IP address from ADSL - 192.168.1.17 How can I restrict/deny this range - 192.168.1.0?I don't wana my PC's to take IP's from there.
I try with: ipfw add 2 deny all from 192.168.1.0/24 to any;ipfw add 3 deny all from any to 192.168.1.0/24;ipfw add 4 deny all from any to 192.168.1.1 and many, many, but nothing works
And the second question is: when I ping from 192.168.10.1 to 192.168.10.10 ( another PC ), ping is < 1ms, but when I ping 192.168.20.1 ( another interface ), ping is too high ( like 2ms,8ms, 20ms and etc. ).It's not hardware problem in lan card, becouse interfaces are virtual.
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unbound-streamtcp
unbound-streamtcp(1) unbound unbound-streamtcp(1) NAME
unbound-streamtcp - unbound DNS lookup utility SYNOPSIS
unbound-streamtcp [-unsh] [-f ipaddr[@port]] name type class DESCRIPTION
unbound-streamtcp sends a DNS Query of the given type and class for the given name to the DNS server over TCP and displays the response. If the server to query is not given using the -f option then localhost (127.0.0.1) is used. More queries can be given on one commandline, they are resolved in sequence. The available options are: name This name is resolved (looked up in the DNS). type Specify the type of data to lookup. class Specify the class to lookup for. -u Use UDP instead of TCP. No retries are attempted. -n Do not wait for the answer. -s Use SSL. -h Print program usage. -f ipaddr[@port] Specify the server to send the queries to. If not specified localhost (127.0.0.1) is used. EXAMPLES
Some examples of use. $ unbound-streamtcp www.example.com A IN $ unbound-streamtcp -f 192.168.1.1 www.example.com SOA IN $ unbound-streamtcp -f 192.168.1.1@1234 153.1.168.192.in-addr.arpa. PTR IN EXIT CODE
The unbound-streamtcp program exits with status code 1 on error, 0 on no error. AUTHOR
This manual page was written by Tomas Hozza <thozza@redhat.com>. NLnet Labs Mar 21, 2013 unbound-streamtcp(1)