NTP服务器配置文件示例
[root@sip etc]# cat ntp.conf
driftfile /var/lib/ntp/drift
server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org
server 127.127.1.0
fudge 127.127.1.0 stratum 10
[root@sip ntp]# cat ntpserve...
[root@sip etc]# cat ntp.conf
driftfile /var/lib/ntp/drift
server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org
server 127.127.1.0
fudge 127.127.1.0 stratum 10
[root@sip ntp]# cat ntpserve...
switch#sh run
Current configuration:
!
hostname switch
!
service dhcp
!
snmp-server enable
snmp-server securityip 218.28.168.83
snmp-server host 218.28.168.83 v1 public
eth0是我外网网卡,eth1是我内网网卡
1.建立静态IP/MAC捆绑
方法:建立/etc/ethers文件,其中包含正确的IP/MAC对应关系,格式如下:
[root@test2 root]# more /etc/ethers
192.168.10.18 00:10...
netfilter/iptables这个玩意儿似乎很复杂一直没太搞懂它的原理,所以从给公司配置服务器开始就从未使用过它,让同事们共享上网时才用了一下它的伪装,当时也只是从网上看到了那行iptables -t...
#——————————- ACCEPT IP ——————————-
iptables -F
#首先我们知道 -F 是清除的意思,所以第一条的作用...
http://www.rowetel.com/ucasterisk/oslec.html
Introduction
Oslec is an open source high performance line echo canceller. When used with Asterisk it works well on lines where the built-in Zaptel echo canceller fails. No tweaks li...
Echo cancellation in Asterisk
Before you proceed down this path, make sure you have read the notes in Causes of Echo on tracing, and attempting to eliminate, the source of any echo. It should be possible to eliminate any residual echo with the z...