ntp servers

I remember when I first started RTP/RTCP two years ago, I encountered a problem about how to calculate the NTP timestamp in RTCP. Someone recently asked this question, so I wanted to post it, for your reference, give suggestions, and exchange ideas to promote progress. I remember a customer said that using openrtsp (open source, you can get it from www.live555.com) could not record the RTP stream we sent out, so I went to another one, I tried to find

Configuration on node 1:More/etc/NTP. conf Restrict default ignore Restrict 192.168.0.0 mask 255.255.255.0 notrap nomodify Server 162.105.129.27 # time server on the Internet Server 127.127.1.0 # local clock Fudge 127.127.1.0 stratum 10 Driftfile/var/lib/NTP/drift Broadcastdelay 0.008 Keys/etc/NTP/keys Configuration on node 2:More/etc/

In an Oracle 10G environment, if you want to build a cluster, you need to synchronize the clock, which requires an NTP server.1, on the timing system machine, edit/etc/ntp.confRetrict default NomodifyRestrict 127.0.0.1Server 127.127.1.0Fudge 127.127.1.0 Stratum 8Driftfile/var/lib/ntp/driftBroadcastdelay 0.008Then restart the NTPD serviceService NTPD Restart2, on the other host to synchronize the clock canNt

The client first installs NTP Yum install ntpshell> ntpdate 95.222.122.210 shell> ntpdate 202.112.10.60 shell> ntpdate 192.93.2.20 Note: When the client Synchronizes time, the following error occurs: No server suitable for synchronization found. Cause: After you restart the NTP service on the NTP server, it may take five minutes for the

One, NTP server (ip:192.168.1.101) Installation: Yum install-y NTP Firewall allowed: iptables-a input-i $EXTIF-P udp-s 192.168.1.0/24--dport 123-j ACCEPT Configuration: vim/etc/ntp.confRestrict 192.168.1.0 mask 255.255.255.0 nomodify notrapServer before # Remove Start:/ETC/INIT.D/NTPD startChkconfig ntpd on Observation: Ntpq-p or Ntpstat Second,

NTP server1. Enter Rpm-qa|grep NTP to see if an NTP server is installed2. If the Yum-y install NTP installation is not installed3. Modify/etc/ntp.conf Add the original server annotated local server 127.127.1.14. Restart the service systemctl restart Ntpd.service use ntpq-p to see if it is a local ntpd5. Client Configur

cve-2013-5211 Vulnerability Description: Cve-2013-5211 was first announced January 10, 2014, because NTP itself does not verify the sender's source IP address. This is similar to the DrDoS (distributed reflection denial of service attack) used by the DNS parser. The attacker hack sent a forged message to the NTP server server A, changing the source IP address in the packet to the IP address of victim clien

On AIX 6.1, the NTP clock synchronization configuration details ntp synchronization server time NTP service is currently used in a small number of projects, recently a DB2 cluster, there are some requirements for time consistency, so I wantNtp. Although timed can also be used, it is only effective for broadcast domains, but it is still more powerful. Www.2cto.com

the Red Flag Linux system is released when it is announced to be compatible with the RPM package, and in the red flag provided by the tool CD, I see a lot of packages are Rhel 4, so you can determine, Red Flag Linux can at least support the RPM package in Rhel 4. If you're using an RPM package, it's easy to install, and it's annoying that servers and client and other libraries are packaged separately and downloaded. And I downloaded a single compres

the command line; Export TZ can be. When the date view time, the system is to find the TZ environment variable, TZ is not set to take the search for/etc/localtime file, so the TZ environment variable settings will overwrite the /etc/localtime file information, but the environment variable settings at the next logon is not valid, To be permanently valid, you can write commands to the/etc/profile file. Time Server Setup NTP, Network Time Protocol, is a

Experimental environment: Linux CentOS 5.5 Two units IP Address: ntpserver:192.168.186.129 ntpclient:192.168.186.152 Test requirements: Install the NTP server and deploy the implementation to allow the client to synchronize its practices normally. and analysis of the fault handling encountered during the implementation of the project. Implementation process: NtpServer-side deployments. 1, first check whether the

Openssh/ntp/ftp vulnerabilities and opensshntpftp Vulnerabilities Common reinforcement for these three vulnerabilities requires an official vulnerability upgrade package for the operating system. In this case, the following is not general:Openssh: Modify the ssh version:Whereis ssh // view the ssh directoryCd to this directoryCp ssh. bak // back up sshSsh-V // view the ssh VersionSed-I's/OpenSSH_6.9p1/OpenSSH_7.2p2/G' ssh // modify the version. The ve

/********************************************************************** * buildroot NTP Network clock synchronization * Description: * File system requires network clock synchronization, so use NTP to do this thing. * 2016-12-1 Shenzhen Nanshan Ping Shan village Zengjianfeng ************************************************************** *******/First, buildroot configuration:1. TimeZone: ┌──────────────────

CentOS since 7.0, NTP has made a service, which means that it can run a daemon to automatically synchronize time instead of writing commands to a scheduled task like the 5 and 6 versions, which is very helpful when doing a cluster service.Installing NTP[[email protected] ~]# Yum install NTP ntpdate-yConfiguration file/etc/ntp.conf[Email protected] ~]# vim/etc/ntp

First step to install NTPYum Install NTPSecond step, find the closest time synchronization serverHttp://www.pool.ntp.org/zone/asiaThe third edition of/etc/ntp.confServer 127.127.1.0 iburst # Local Clock when the external time server is unavailable, use the native time as the standard for the time serviceFudge 127.127.1.0 Stratum #这个值不能太高0-15, too high will be an errorFourth StepAdd an IP segment to allow accessRestrict 192.168.1.0 netmask 255.255.255.0 nomodify notrapFifth Step Configuring the f

An error is displayed when you use RHEL as an NTP server to update ntpdate on the server. My configuration is as follows: restrict127.0.0.1restrict-6: 1restrict10. Conflict An NTP server is built using RHEL. An error is displayed when ntpdate is updated on the server, as shown below: My configuration is as follows: Restrict 127.0.0.1 Restrict-6: 1 Restrict 10.0.0.0 mask 255.0.0.0 nomodify notrap Res