Cisco配置备忘稿

March 30, 2021 Linux YY.K Permalink

VRF

Usage Guidelines

This command is available for all IP-route tracked objects that are tracked by the track ip route global configuration command. Use this command to track a route that belongs to a specific VPN.

Examples

In the following example, the route associated with a VRF named VRF1 is tracked:

Router(config)# track 1 ip route 10.0.0.0 255.0.0.0 metric threshold
Router(config-track)# exit
Router(config)# ip vrf VRF1
Router(config-vrf)# rd 100:1
Router(config-vrf)# route-target both 100:1
!
Router(config)# interface ethernet0/2
Router(config-if)# no shutdown
Router(config-if)# ip vrf forwarding VRF1
Router(config-if)# ip address 10.0.0.2 255.0.0.0

Command

Description

ip vrf forwarding

Associates a VPN VRF with an interface or subinterface.

track ip route

Tracks the state of an IP route and enters tracking configuration mode.



ip tcp adjust-mss


  • ip tcp adjust-mss 1452

  • ip mtu 1492

Examples

The following example shows the configuration of a PPPoE client with the MSS value set to 1452:

vpdn enable
no vpdn logging
!
vpdn-group 1
request-dialin
protocol pppoe
!
interface Ethernet0
 ip address 192.168.100.1 255.255.255.0
 ip tcp adjust-mss 1452
 ip nat inside
!
interface ATM0
 no ip address
 no atm ilmi-keepalive
 pvc 8/35
 pppoe client dial-pool-number 1
!
dsl equipment-type CPE
dsl operating-mode GSHDSL symmetric annex B
dsl linerate AUTO
!
interface Dialer1
 ip address negotiated
 ip mtu 1492
 ip nat outside
 encapsulation ppp
 dialer pool 1
 dialer-group 1
 ppp authentication pap callin
 ppp pap sent-username sohodyn password 7 141B1309000528
!
ip nat inside source list 101 interface Dialer1 overload
ip route 0.0.0.0 0.0.0.0 Dialer1
access-list 101 permit ip 192.168.100.0 0.0.0.255 any



原文地址https://www.cisco.com/en/US/docs/ios-xml/ios/ipapp/command/ip_tcp_adjust-mss_through_ip_wccp_web-cache_accelerated.html

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goflow（Netflow/IPFIX Collector）

March 25, 2021 Linux YY.K Permalink 
go get github.com/cloudflare/goflow/cmd/goflow
cd ~/go/src/github.com/cloudflare/goflow/cmd/goflow
go install

goflow -kafka=false -nf -nf.addr 192.168.1.8 -nf.port 567

goflow -h
goflow -kafka=false -nf -nf.addr 192.168.1.8 -nf.port 5678


IPFIX, netflow, sflow

邮件系统收集整理

March 23, 2021 Linux YY.K Permalink

iRedMail


https://qing.su/article/158.html
香菇肥牛大佬写了些涨经验值的内容.


poste


https://poste.io/
基于docker的一个邮件投递系统

postal


   https://postal.atech.media/

https://github.com/postalhq/postal/wiki/Quick-Install
用来专门投递邮件这玩意不错的.

mailu


https://mailu.io/
https://github.com/Mailu/Mailu
mailu这玩意是基于docker运行的, 看起来好像不错, 还没搭建过,

Mail-in-a-Box

https://mailinabox.email/
https://github.com/mail-in-a-box/mailinabox
指定在ubuntu上部署, ubuntu18可以安装, 还算比较不错的.

postalserver

http://docs.postalserver.io
https://github.com/postalserver/postal

 


Zimbra和Modoboa好像还可以, 但还没搭建过.


未完待续

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