srx

Juniper SRX采用Junos操作系统，简单介绍Junos的基础操作命令： set: 建立一个配置（set system hostname srx-test）； delete:删除一个配置（delete system hostname srx-test）； commit: 建立，删除，修改配置都需要保存配置，使生效； commit check: 检测候选配置的合法性； show | compare: 查看当前配置与激活配置的区别； system层级，用于配置防火墙系统配置，在系统配置中涉及用户，远程接入方式，日志等信息的配置： 一、创建用户（修改root用户密码，创建普通用户） 修改root用户的密码 admin@SRX# set system root-authentication plain-text-password New password: Retype new password: [edit] admin@SRX# 创建普通用户 admin@SRX# set system login user admin class super-user authentication plain-text-password New password: Retype new password: [edit] admin@SRX# Junos默认的用户权限 [edit] admin

一、实验环境介绍 1）vsrx 12.1X47-D20.7 二、实验拓扑 vSRXA1与vSRXA2之间建议Chassis Cluster ge-0/0/0为带外管理接口(系列默认，不可改) ge-0/0/1为control-link（系统配置，不可改） ge-0/0/4为data-link(手工配置，可改) control-link与data-link采用背靠背的连接方式。 在低端的SRX防火墙带外管理接口、控制接口、数据接口都是业务接口。 在高端的SRX防火墙管理接口、控制接口即为专用接口，只有数据接口为业务接口。 在HA中node1的接口序号将发生变化，在vSRX虚拟器上转为为一个7槽的设备（即slot 0、1、2、3、4、5、6） node0的接口序号为ge-0/0/0、ge-1/0/0....ge-6/0/0 node1的接口序号为ge-7/0/0、ge-8/0/0...ge-13/0/0 三、SRX 从单机模式到HA模式，需要重启防火墙 vSRXA1: set chassis cluster cluster-id 1 node 0 reboot vSRXA2: set chassis cluster cluster-id 1 node 1 reboot 2) vSRX重启后自动加入HA模式 {primary:node0} root> show chassis

JunOS has strong flexibility on many features. One of them is logging. It support flexible logging options. This post summarizes some concepts I learned from my work and studying. 1.Understand Juniper SRX logging Type: 1.1 System Logging Junos OS supports configuring and monitoring of system log messages (also called syslog messages). You can configure files to log system messages and also assign attributes, such as severity levels, to messages. Reboot requests are recorded to the system log files, which you can view with the show log command. SRX Series devices can send system log messages

An Intrusion Detection and Prevention (IDP) policy lets you selectively enforce various attack detection and prevention techniques on the network traffic passing through your SRX Series. The SRX Series offer the same set of IDP signatures that are available on Juniper Networks IDP Series Intrusion Detection and Prevention Appliances to secure networks against attacks. The basic IDP configuration involves the following tasks: Download and install the IDP license. Download and install the signature database—You must download and install the IDP signature database. The signature databases are

My old post “ Import Existing Juniper SRX Cluster into JunOS Space Security Director ” was created based on Space 14.1 and SRX11.x version. Now both have been upgraded. Space NMP and Security Director have been upgrade to 16.1 (Post is here ). SRX240H has been upgrade to 12.1D46.55. Basically, all steps are similar except the web interface is different. What you need to do is to configure your SRX cluster with a master-only ip on both nodes. The configuration should looks like this: [email protected] > show configuration ## Last commit: 2017-03-23 14:44:28 UTC by root version 12.1X46-D55.3;

There is a new project to configure a new pair of Juniper SRX1400 as Chassis Cluster implementation for one of our customers. Juniper documentation does not have clear guide for 1400 this device although I did find some of configuration guide for high-end device. During set up, I was confusing those ports numbers and fab and control port connections. This post is used to record my steps how to configure them. root> show chassis hardware Hardware inventory: Item Version Part number Serial number Description Chassis BH1014AA0023 SRX 1400 Midplane REV 03 711-031012 ACDA5607 SRX1k Backplane PEM 0

I was having DHCP Relay configured on SRX 240H Cluster devices, it was quite straightforward experience, and Juniper KB 15755 covered all points when I first configured it. It was working fine at JUNOS version from 11.x to 12.1×44-D40.2 in cluster environment and related interfaces are in different Routing instance. Basic topology looks like as below: DHCP Server 10.9.1.50 is in routing instance v_i on Reth2.0 interface. Three DHCP Client networks are in different routing instances, v_t and v_Def. Global DHCP Relay configuration looks like following: forwarding-options { helpers { traceoptions

While using PRTG to monitor our firewalls, we found by default it could not poll Juniper SRX’s CPU and flow information with auto discovery method. From command line, we are able to use following SNMP Mib to get CPU, Memory and Flow Session information, but not directly from PRTG. PRTG is powerful network monitoring tools for enterprise with following features I likes : Easy to deployment, as it said it can be installed in 2 minutes Auto discovery methods to find monitoring elements. Support distribution implementation. You could install agents it in multiple location. Support Multiple

One of our srx system alarm light is on. Check system alarms and fond this: [email protected] > show system alarms node0: ————————————————————————– 1 alarms currently active Alarm time Class Description 2013-03-13 16:50:13 UTC Minor Autorecovery information needs to be saved node1: ————————————————————————– No alarms currently active Googled internet and here is explanation: Autorecovery —This feature is supported on dual-partitioned SRX100, SRX210, SRX220, SRX240, and SRX650 Services Gateways. With this feature, disk partitioning, configuration, and licenses information can be recovered in