openstack dns as service

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Linux bind Service (DNS) deployment Configuration

*//installation bind service3.systemctl start Named.service//Start service4.NETSTAT-UTLNP | grep named//view service port5.RPM-QL bind-9.9.4-50.el7.x86_64//View the path generated during installation6.vim/etc/named.conf//Modify Master File7. Add a configuration area8. Depending on the version of the installation system, the reverse parsing file directory will change.Cd/var/namedCP Named.localhost Linuxma.com.zoneCP Named.localhost 192.168.227.zoneVim/

DNS service installation error bind-chroot-9.3.3-7.el5.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186

I found the following error when installing the DNS service for Linux 5 today![Root @ localhost server] # rpm-IVH bind-chroot-9.3.3-7.el5.i386.rpmWarning: bind-chroot-9.3.3-7.el5.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186Error: Failed dependencies:Bind = 30: 9.3.3-7. EL5 is needed by bind-chroot-9.3.3-7.el5.i386 This is mainly because the corresponding package is missing. If the system softwa

About the DNS service cannot resolve problem handling

Today, when I was playing VMware, I ping www.baidu.com with the ping command, and the results show Unkown hosts www.baidu.com, but ping a certain IP is normal.Examples are as follows:[[email protected] ~]# Ping www.baidu.comPing:unknown Host Www.baidu.com[[email protected] ~]# Ping 119.29.25.60PING 119.29.25.60 (119.29.25.60) bytes of data.Bytes from 119.29.25.60:icmp_seq=1 ttl=128 time=41.9 msBytes from 119.29.25.60:icmp_seq=2 ttl=128 time=43.3 msBytes from 119.29.25.60:icmp_seq=3 ttl=128 time=

Tftpd32 DNS Server Denial of Service Vulnerability

Release date:Updated on: Affected Systems:TFTPD32 TFTPD32 4.00Description:--------------------------------------------------------------------------------Bugtraq id: 53704 Tftpd32 is a TFTP and DHCP server on Windows. A Denial-of-Service vulnerability exists in implementation of versions earlier than TFTPD32 4.00. the DNS server is bound to UDP port 53, but the domain option size is not verified. When sendi

Learn about Linux DNS service setup for Beginners

To configure the DNS approximate steps:1. Configure the IP address, and DNS points to itself.2. Turn off the firewall and turn off SELinux.3. Mount and install the bind package4. Copy the configuration file5. Configuring named.conf Primary Files6. Configure forward and backward files7. Configure the Forward file8. Configuring Reverse Files9. Restart the service10. Testing ServicesBody1. Configure the IP add

Cisco iOS and iOS XE software multiple DNS denial of service Vulnerability-China cold dragon

Affected Systems:Cisco IOS 15.xCisco IOS XE 3.xDescribe:--------------------------------------------------------------------------------Bugtraq id:70132CVE (CAN) id:cve-2014-3357Cisco IOS is the internetwork operating system used on most Cisco system routers and network switches.Cisco iOS 15.0, 15.1, 15.2, 15.4, iOS XE 3.3.xSE, 3.3.xXO, 3.5.xE, 3.11.xS a remote denial of service vulnerability exists on the implementation that could allow an attacker t

Configure DNS service in detail on Redhat9.0

Article Title: configure the DNS service in detail on Redhat9.0. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Prerequisites: The machine name is bak.5ilinux.com and the domain name is 5ilinux.com.       1. Install from the installation disk    Rpm-ivh bind-9.2.2-21.i3

Million network DNS service can also set SPF record _ Phone

Previously thought is not set up, because in the self-service management system did not find the place. Today to the million Network technology customer service call, just know, in fact, can be set. Login www.net.cn, in the left menu has a "domain DIY self-help management", click to enter the "domain name self-help resolution platform" (Http://diy.hichina.com/cgi-bin/login), Use domain name and domain na

Linux Basic Learning (15) System failure recovery and DNS service configuration

configured well after dig www.baidu.comConfiguration of the DNS server (forward parsing)Service side:Vim/etc/named.rfc1912.zonesCopy and paste the 19th to 24th line in line 25 to modifyZone "Lcdqqq.com" in {Type master;File "Lcdqqq.com.zone";allow-update {none;};29};Vim/var/namedllCopy the Named.localhost to lcdqqq.comCp-p named.localhost lcdqqq.com (-P: Full replication, even permissions copied)Enter the

"Linux" DNS service-bind from server, cache server, forwarding server configuration

EnvironmentOperating system: CentOS 6.5DNS software: Bind (Installation reference: "Linux" DNS service-bind basic configuration (ii))Bind slave ServerFrom the server is to add the configuration information from the domain example.net in the main configuration file of Bind 3  1. configuration file Location   /var/named/chroot/etc/named.conf2. Add a zone definition for a row of fields in the master configurat

Common service---DNS+FTP+DHCP for Linux Enterprises

protected] named]# cp/usr/share/doc/bind-9.8.2/sample/var/named/named.ca.[Email protected] named]# named-checkzone linuxfan.cn.zone 192.168.100.arpa # #测试配置文件Zone linuxfan.cn.zone/in:mail.linuxfan.cn.zone/mx ' mail.linuxfan.cn ' (out of zone) have no addresses records (A or AAAA)Zone linuxfan.cn.zone/in:loaded Serial 0Ok[Email protected] named]#/etc/init.d/named restartStop named: [OK]Start named: [OK][Email protected] named]# chkconfig named on[Email protected] ~]# NETSTAT-UTPLN |grep 53TCP 0

The DNS Caching service under Linux

Recently, users always reflect the login to a server, the user authentication failed error.After I manually restart the winbind process, the login is back to normal.Authconfig Check the configuration column, there is a cache information this item, try to hook up, the result of reloading Winbind when the service NSCD load failed.Baidu learned that NSCD is the DNS caching

Linux system installation DNS forward parsing service

Enter "Mount/dev/sr0/mnt" to mount the disc,Then enter "rpm-ivh/mnt/packages/bind-9.7.3-8.p3.el6.i686.rpm" To install the DNS service:After "vi/etc/named.conf" to view the global configuration file,Turn on the 53 port and match the IP address of the machine (IPv6 is temporarily unavailable, can be commented out by the # number),Change "localhost" to "any" to allow any user access:Then enter "Vi/etc/named.rfc1912.zones" to access the zone configuration

Common Enterprise IT Support "5, intranet DNS cache lightweight service DNSMASQ"

Refer to http://www.centoscn.com/CentosServer/dns/2014/0113/2355.html keepalive high-availability modeThis scheme is only suitable for small businesses, in the case of low-scale use, the resolution of a large amount of time or bind the best.If you add Local intranet own domain name hijacking resolution, simply add the parse record in the installed DNSMASQ/etc/hosts and restart DNSMASQ to take effect.Common Enterprise IT Support "5, intranet

Linux DNS Service installation configuration

server configuration is complete.8. Configuration forward parsingVim/etc/named.confAddZone "Redhat.com" in {Type master;File "Redhat.com.zone";};9. Add forward parsing configuration fileVim/var/named/redhat.com.zone$TTL 86400@ in SOA ns1.redhat.com. Admin.redhat.com. (2015010101; Serial1H; Refresh5M; Retry1W; Expire3H); MinimumIn NS ns1In MX ten MailNS1 in A 192.168.101.168Mail in A 192.168.101.10www in A 192.168.101.11www in A 192.168.101.12# License Related Documentschmod 640/var/named/redhat

Linux's DNS Caching service-NSCD learning notes

Open, stop, restart service Sevices NSCD Start | Stop | Restart Cache db Files under/VAR/DB/NSCD Nscd-g View Statistics Clear Cache Nscd-i passwdNscd-i GroupNscd-i hosts Add: Turn on the NSCD cache service to speed up DNS resolution Here's the start: 1. Install NSCD yum install nscd 2. Modify the configuration file. To modify the

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