ssg firewall

Problem description: When the SSG series firewalls of Juniper can access each other through VPN dial-in or direct mutual access between different network segments, sometimes PING can be reached, but the service cannot be accessed, such as WEB and shared files. Problem Analysis: These problems are often caused by the identification of data packet fragments by devices during data transmission. Generally, data packets are too large and nee

SSG-5 is the Juniper Firewall entry level products, some emergency situations need to log into the intranet of a PC or server, need to temporarily open the firewall 3389 ports and do the corresponding VIP mapping. The command line is naturally the fastest and least error-prone way. The setting method is as follows: Set Service "3389" protocol tcp src-port 0-655

MIP is a "one-to-one" two-way address translation (conversion) process. Typically, there are several public-network IP addresses, and there are several servers providing network services (the server uses a private IP address), in order to enable Internet users to access these servers, A one-to-one mapping (MIP) between the public network IP address and the server private IP address can be established on the firewall on the Internet exit, and the servi

Set the group number for the VSD, which can be used without input because the value of the default virtual security database (VSD) for the NetScreen firewall is 0. SSG550 (M)-> set NSRP Vsd-group ID 0 Priority 50 sets the priority value of the NSRP primary device, the smaller the priority value, the higher the priority. SSG550 (M)-> set NSRP RTO syn Set configuration sync SSG550 (M)-> set NSRP vsd-group ID 0 Monitor interface ethernet3 set

Okay, everybody.This weekend seems to have been very fast, because there are too many customers after-sales problems need to actively cooperate with the processing, in short, the time for engineers to do a good job of technology has gone, many times we have to assume too many original role, and not just Huawei, China three, Cisco.this share, but also focused on the configuration of the idea of Huawei, rock Mesh firewall configuration ideas, in favor o

) Advantages: the realization of communication between different VLANs helps to understand and learn the VLAN principle and sub-interface concepts. Disadvantages: easy to become a network single point of failure, configuration is slightly complex, the practical significance is not big. Second, SSG firewall configuration:The WEB-UI is configured as follows:Step-1, drop down select Sub-if650) this.width=6

First of all, for the theory of literacy, you need to understand ha what it is and whether it is similar to other high availability, not much to say. You can look down.Juniper-netscreen os ha High availability configuration HA NetScreen Company's NSRP agreement is Juniper company based on the VRRP protocol specification independent Development Agreement, the firewall as the core network of the key equipment, need to provide security for

First:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6E/7E/wKioL1V-hYWjsz4IAAIEV-U82q8049.jpg "title=" 1.png " alt= "Wkiol1v-hywjsz4iaaiev-u82q8049.jpg"/>Iii. analysis and pre-planningPlanning as ↑Analyze customer's tentative topology scheme to realize multi-VLAN communication. G0/0/48 Port made trunk, theoretically sw-a will only let 10.10.0.X/24 host, Juniper Firewall ping vlanif1-6 can go, this is the problem, only 10.10.0.X/24 host, Th

NetScreen Juniper SSG Operation commandApril 10, 2013Command line get configuration information get configcommand line to get the time set to get clockSet Vrouter TRUST-VR sharable settings Consider router TRUST-VR can share set Vsys "Vrouter"/Set virtual router for other UNTRUST-VR systems Set Vrouter "TRUST-VR"/Set Virtual router set zone "Untrust" Vroute "UNTRUST-VR" zone untrust to U In NTUST-VRZone Untrust is modified to UNTRUST-VRJUNIPER NTP tim

synchronization, one is green, the other Ha is red (but in this case, how to unplug the normal one, the backup can actually take over, but there will be a warning)Ssg-550m-2 (B), exec nsrp sync global-config save sync Configuration (enter this command to wait a few seconds)will return some debugging informationSsg-550m-2 (B), Exec nsrp sync global-config Check to see if it is synchronized (if there is no alarm,Indicates NSRP configuration is not a pr

Juniper-ha SSG Series Cluster-id solutions to scarcity problems.Http://forums.juniper.net/t5/ScreenOS-Firewalls-NOT-SRX/Cluster-ID-issue-on-ssg140/m-p/15312//true(Answer from Juniper's official technician)By default, NSRP would support up to 8 cluster ID ' s and 8 VSD ' s. As noted in the previous entry, you can increase this with the Envar, but you need to use them in multiples of 8, and the combination of cluster ID ' s and VSD ' s cannot exceed . Y

Master firewall configuration unset interface e4 IP addresses e4 IP address deletion Set interface e4 zone Ha binds E4 and ha regions together Ssg550-> set NSRP Cluster ID 1 sets cluster group number SSG550 (M)-> set NSRP VSD ID 0 Sets the group number of the VSD, which can be used without input because the value of the default virtual security database (VSD) for the NetScreen firewall is 0. SSG550 (M)

First, configure the firewall, open 80 ports, 3306 ports CentOS 7.0 uses firewall as a firewall by default, and this is iptables firewall instead. 1. Close firewall: #停止firewall服务Systemctl Stop Firewalld.service #禁止

Firewall-cmd: command line tool for firewall settings in rhel7, firewall-cmdrhel7Firewall-cmd: the command line tool for firewall settings. Syntax: firewall-cmd [OPTIONS...] common OPTIONS:-h: Print help information;-V: Print version information;-q: exit, do not print status

FIREWALLD provides a dynamic firewall management tool that supports network/firewall zone (zone) definition of network links and interface security levels. It supports IPV4, IPV6 firewall settings and Ethernet bridging, and has run-time configuration and permanent configuration options. It also supports interfaces that allow services or applications to add

First, Checkpoint introduction:　As one of the organizations and advocates of the Open Security Enterprise Interconnection Alliance (OPSEC), checkpoint company is committed to enterprise-level network security products research and development, according to IDC's recent statistics, its FIREWALL-1 firewall in the market share of more than 32%, "fortune" The top 100 of the largest enterprises in nearly 80% sel

1, the basic use of FIREWALLDStart: Systemctl start FirewalldView status: Systemctl status FirewalldStop: Systemctl Disable FIREWALLDDisable: Systemctl stop Firewalld2.systemctl is the main tool in CentOS7 's service management tool, which incorporates the functionality of the previous services and Chkconfig.Start a service: Systemctl start Firewalld.serviceClose a service: Systemctl stop Firewalld.serviceRestart A service: systemctl restart Firewalld.serviceDisplays the status of a service: Sys

Since the introduction of the first firewall (Internet Connection Firewall) built into the Windows XP system, Microsoft has been steadily improving the firewall capabilities of its subsequent system. The Windows Firewall in Windows 7, the latest client operating system, has revolutionized improvements, providing more u

In order to set up the SS in Vultr bought a Japanese VPS with the CENTOS7 system firewall is firewall for two days to sum up here. If the small partner also prepares to buy the VPS in the vultr the registration is may use this preferential connection Http://www.vultr.com/?ref=6972993-3B to 20$ the discount also may use for free 4 months If your system is not installed using the command to install

Simple configuration, reference learning:–permanent This parameter is added at the beginning or end of the command when a permanent state is set, otherwise the setting fails after overloading or restarting the firewall. Open port: firewall-cmd–zone=public–add-port=80/tcp–permanent firewall-cmd–zone=public–add-port=22/tcp– Permanent Common portsHttp:80Ssh:22redis: