Kepala Bergetar HD Kepalabergetar, Kbergetar, Drama Melayu, Layan Drama, TV3 Streaming, Drama Melayu online, Tonton liveWhat’s DNS?
DNS (Area Identify Machine)
An IP deal with is equipped to visit each internet deal with at the Web. It’s somewhat tough and tough to stay the IP addresses of those internet addresses one after the other in our minds.
DNS
comes into play right here. It offers a reputation comparable to the IP of every internet deal with, so the names which can be more uncomplicated to switch than IP addresses are the call of the machine that is helping us take into accout. For instance techsoftcenter.com (IP price:
172.104.31.121
)
What’s DHCP?
DHCP (Dynamic Host Configuration Protocol)
is just the provider used to offer IP addresses to the computer systems within the machine and further parameters. The primary goal of
DHCP
is to allow the installer to robotically distribute IP addresses with
DHCP
the server as an alternative of giving IP to particular person gadgets. As well as, any other comfort supplied via the DHCP server is the
NTP Server
.
Default Gateway
and so on. too can assign parameters.
We can use the “
Oracle Undertaking Linux
” running machine for set up. This newsletter additionally applies to different running methods. Suitable with (
Pink Hat
,
CentOS
,
Kali
,
Ubuntu
and so forth).
We can read about our setup processes below two headings, “
DNS Server Configuration
” and “
DHCP Server Configuration
“.
We disable our “
Firewall
” and “
SELinux
” products and services on our server. If our “
Firewall
” and “
SELinux
” products and services might be energetic, we can wish to enable the ports that our products and services will use, so we wish to disable them.
# vim / and so on / selinux / config —We open the dossier andset the line under as“disabled”. SELINUX=disabled —We prevent andshut our firewall provider. # provider iptables prevent # chkconfig iptables off |
DNS Server Configuration (BIND DNS)
1. We set up “BIND DNS” applications that we use in our running machine.
2. On our server, we edit our DNS Server deal with on your DNS configuration dossier “
/and so on/named.conf
” and our DNS addresses that it’ll direct when it can’t get to the bottom of the call.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | # vim /and so on/named.conf —We edit the following strains inthe dossier. choices{ hear–onport53{127.0.0.1;192.168.2.120;}; hear–on–v6port53{::1;}; listing“/var/named”; sell off–dossier“/var/named/information/cache_dump.db”; statistics–dossier“/var/named/information/named_stats.txt”; memstatistics–dossier“/var/named/information/named_mem_stats.txt”; forwarders{8.8.8.8;8.8.4.4;}; enable–question{localhost;any;}; recursion sure; dnssec–allow sure; dnssec–validation sure; dnssec–lookaside auto; /* Trail to ISC DLV key */ bindkeys–dossier“/and so on/named.iscdlv.key”; controlled–keys–listing“/var/named/dynamic”; }; logging{ channeldefault_debug{ dossier“information/named.run”; severity dynamic; }; }; zone“.”IN{ sort trace; dossier“named.ca”; }; zone“techsoftcenter.com”IN{ sort grasp; dossier“techsoftcenter.ahead”; enable–replace{192.168.2.0/24;}; }; zone“2.168.192.in-addr.arpa.”IN{ sort grasp; dossier“techsoftcenter.opposite”; enable–replace{192.168.2.0/24;}; }; come with“/and so on/named.rfc1912.zones”; come with“/and so on/named.root.key”; come with“/and so on/rndc.key”; |
3. In our server, we make the essential enhancing operations within the dossier “
/var/named/localdomain.zone
” to be able to make your “Ahead” DNS data.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | # vim /var/named/techsoftcenter.ahead —We open our dossier andedit it asfollows. Right here we input the pc names andIP Addresses inour surroundings. $TTL86400 @INSOA techsoftcenter–srv.techsoftcenter.com.hostmaster.techsoftcenter.com.( 42;serial 3H;refresh 15M;retry 1W;expiry 1D);minimal INNS techsoftcenter–srv localhost INA127.0.0.1 techsoftcenter–srv INA192.168.2.120 tchsftcntrrac1 INA192.168.2.121 tchsftcntrrac2 INA192.168.2.122 tchsftcntrrac1–priv INA192.168.117.141 tchsftcntrrac2–priv INA192.168.117.142 tchsftcntrrac1–priv2 INA192.168.117.143 tchsftcntrrac2–priv2 INA192.168.117.144 tchsftcntrrac1–vip INA192.168.2.131 tchsftcntrrac2–vip INA192.168.2.132 tchsftcntrrac–scan INA192.168.2.125 tchsftcntrrac–scan INA192.168.2.126 tchsftcntrrac–scan INA192.168.2.127 |
4. As a way to make our Opposite DNS data on our server, we prepare it via making the essential operations within the dossier “
/var/named/0.168.192.in-addr.arpa
”.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | # vim /var/named/techsoftcenter.com.opposite —We open our dossier andmake the essential preparations. Right here we create the“opposite”data that we have assigned We write the remaining digits of IP addresses.The different section of“DNS Opposite “will whole the characteristic. $ORIGIN2.168.192.in–addr.arpa. $TTL1H @INSOA techsoftcenter.com.hostmaster.techsoftcenter.com.(2 3H 1H 1W 1H) 2.168.192.in–addr.arpa.INNS root.techsoftcenter.com. 120INPTR techsoftcenter.com–srv.techsoftcenter.com 121INPTR tchsftcntrrac1.techsoftcenter.com 122INPTR tchsftcntrrac2.techsoftcenter.com 131INPTR tchsftcntrrac1–vip.techsoftcenter.com 132INPTR tchsftcntrrac2–vip.techsoftcenter.com 125INPTR tchsftcntrrac–scan.techsoftcenter.com 126INPTR tchsftcntrrac–scan.techsoftcenter.com 127INPTR tchsftcntrrac–scan.techsoftcenter.com |
5. After completing the operations on our server, we turn on your provider and we take the essential movements to open it robotically when our server begins.
—At thislevel,rndc.key iscreated for“securedns”inour server. —Thisprocedure might take some time. # provider named get started Producing/and so on/rndc.key:[OK] Beginning named:[OK] —Forour provider toget started robotically on opening our server we make the essential surroundings. # chkconfig named on |
6. We now have completed the procedures for DNS configuration on our server. Now we input the deal with of this server, which we’ve got configured to “
/and so on/resolv.conf
” on our servers or computer systems that can get to the bottom of the internet names.
# vim /and so on/resolv.conf —Open the dossier andedit the following We‘re doing. seek techsoftcenter.com nameserver192.168.2.120 |
7. We test the configurations we’ve got made and ensure that they’re operating.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | # rndc standing model:9.8.2rc1–RedHat–9.8.2–0.17.rc1.0.2.el6_4.4 CPUs discovered:2 employee threads:2 quantity of zones:18 debug stage:0 xfers operating:0 xfers deferred:0 soa queries ingrowth:0 question logging isOFF recursive shoppers:0/0/1000 tcp shoppers:0/100 server isup andoperating # nslookup techsoftcenter-srv.techsoftcenter.com Server:192.168.2.120 Cope with:192.168.2.120#53 Identify:techsoftcenter–srv.techsoftcenter.com Cope with:192.168.2.120 # nslookup tchsftcntrrac-scan.techsoftcenter.com Server:192.168.2.120 Cope with:192.168.2.120#53 Identify:tchsftcntrrac–scan.techsoftcenter.com Cope with:192.168.2.126 Identify:tchsftcntrrac–scan.techsoftcenter.com Cope with:192.168.2.127 Identify:tchsftcntrrac–scan.techsoftcenter.com Cope with:192.168.2.125 # nslookup www.google.com.tr # nslookup www.google.com.tr Server:192.168.2.120 Cope with:192.168.2.120#53 Non–authoritative solution: Identify:www.google.com.tr Cope with:173.194.44.31 Identify:www.google.com.tr Cope with:173.194.44.23 Identify:www.google.com.tr Cope with:173.194.44.24 |
Our DNS Server configuration is whole. Now we can do the “DHCP Server” configuration.
DHCP Server Configuration
1. We’re putting in our “DHCP Server” package deal that we can use in our running machine.
2. We prepare it in step with the IP vary that we can distribute within the “
/and so on/dhcp/dhcpd.conf
” dossier that we can use for configuring “
DHCP Server
” in our server, as within the instance under.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | # vim /and so on/dhcp/dhcpd.conf —We open our dossier andconfigure it asfollows.“possibility”phase, we will distribute toour computer systems we can write choices. Permit booting; Permit bootp; Permit Jstomer–updates; authoritative; subnet192.168.2.0netmask255.255.255.0{ possibility routers192.168.2.1; possibility subnet–masks255.255.255.0; possibility area–call“techsoftcenter.com”; possibility area–call–servers192.168.2.120; possibility ntp–servers192.168.2.120; default–hire–time21600; max–hire–time43200; vary dynamic–bootp192.168.2.100192.168.2.253; } |
3. We commence the “DHCP Server” provider on our server with the settings we make, and when our server is rebooted, we do the essential operations for automated operation.
# provider dhcpd get started —Forour provider toget started robotically on opening our server we make the essential surroundings. # chkconfig dhcpd on |
Your DHCP Server configuration is whole. Now, our computer systems within the community surroundings can robotically download IP addresses and different choices from our server that we configure.
I’m hoping it used to be an invaluable article.
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