carrier will connect enterprises to the telecom data center through optical fiber for the above design, and implement "hard edge" devices in the telecom data center to carry customers of different levels in a hierarchical manner. The problem is that the customer needs to bear the heavy professional leasing price of the enterprise and cannot flexibly change according to the business format. The carrier cannot flexibly choose intelligent routing and fill in traffic within the WAN.
Combined with S
Asymmetric Digital Subscriber Line System (ADSL) is a digital subscriber line system using the DMT line code. Its downlink single channel rate can be as high as 8. 192MBIT/S, the actual rate depends on the line diameter and transmission distance. ADSL supports the main business is the internet and telephone. The biggest feature is the ability to provide broadband services without altering existing copper network facilities. In the past five years, due to the gradual maturation of technology, the
1, the problem description:
We have a CPE MP1803 router as a customer's CE router, the PC after the IGMP report, our router will be in the IGMP table to write the multicast group, but the customer said that the upstream of the PE device does not receive the PIM of our equipment Join message and ultimately cannot draw the multicast traffic down.
After the investigation, found that customers in the same local area network has multiple
TP-LINK outdoor wireless CPE and outdoor wireless base station (BS) can be centrally managed through the Pharos Control software, through the visual interface for Operation configuration. Take outdoor wireless CPE as an example:Common Application topology:Software implementation principle:The interaction data between the client and the CPE/BS device must be forwa
1. Dependency-check can check for known, publicly disclosed vulnerabilities in project dependency packages. Currently good support for Java and. NET; Ruby, node. js, andPython are in the experimental phase, and C + + is supported only through (autoconf and CMake). The owasp2017 Top10 is mainly available for a9-using components with known vulnerabilities. Solution to the problem2, Dependency-check has command line interface, MAVEN plugin, Jenkins plug-ins and so on. The core function is to detect
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/tcp open http Microsoft IIS httpd 7.0443/tcp open ssl/http Microsoft IIS httpd 7.03389/tcp open ms-wbt-server?Service Info: OS: Windows; CPE: cpe:/o:microsoft:windowsService detection performed. Please report any incorrect results at http://nmap.org/submit/ .Nmap done: 1 IP address (1 host up) scanned in 21.99 seconds------------------- For 203.60.240.183, Nmap scan result: ---------------------
Modify the Host Name and Centos Host Name
Centos configuration Host Name:
1. First query the current host name
[Root @ localhost ~] # Hostnamectl status Static hostname: ****** // permanent host name Pretty hostname: [*******] // temporary host name Icon name: computer-server Chassis: server Machine ID: c141adc56682135aa95ee72f48a48d4 Boot ID: running Operating System: CentOS Linux 7 (Core) cpe OS Name: cpe
on the remote host. Based on the preceding scan results, let's take a look at more information about the host 10.1.1.13:
# nmap -O -sV 10.1.1.13
Output:
Nmap scan report for 10.1.1.13Host is up (0.0073s latency).Not shown: 995 closed portsPORT STATE SERVICE VERSION22/tcp open ssh OpenSSH 5.5p1 Debian 6+squeeze2 (protocol 2.0)53/tcp open domain ISC BIND 9.7.380/tcp open http Apache httpd 2.2.16 ((Debian))111/tcp open rpcb
startup. A transient hostname is a host name that is temporarily assigned when the system is running. A flexible hostname allows the use of a host name with special characters.Common Commands1. View status# Hostnamectl or # Hostnamectl status (shows the same results) Static hostname:localhost.localdomain Icon Name: COMPUTER-VM CHASSIS:VM Machine id:049717292ec9452890e50401d432e43c Boot ID: 2e69a66a7c724db6a44a8536f1670f7f VIRTUALIZATION:KVM Operating s
Change Hostname in CentOS 7
After upgrading the VPS system to CentOS 7, I tried to modify/etc/sysconfig/network to modify the hostname, but it was useless. the method for modifying the Hostname of CentOS 7 is different from that of the previous version. We hope this article will help you modify the Hostname on CentOS 7/RHEL 7.
Use hostnamectl to modify Hostname:
Check the current Hostname
[Root @ bkjia ~] # Hostnamectl statusStatic hostname: bkjia. guestIcon name: computer-vmChassis: vmMachine I
TR-069 Protocol Complete communication Process
The following is the device restart to hang TR069 network management of the Message flow resolution (1) device startup; Based on the configured ACS (auto-Configuration server) address, after establishing a secure HTTP connection, Each connection to the CPE must first issue an inform RPC call request to ACS to report the connection information to ACS. ACS returns a inform response as a confirmation connect
Scan the operating system used by the target host.
[emailprotected]:~# nmap -sT -O -A 192.168.1.133Starting Nmap 5.61TEST4 ( http://nmap.org ) at 2012-08-31 02:28 EDTNmap scan report for192.168.1.133Host isup (0.090s latency).Not shown: 986 closed portsPORT STATE SERVICE VERSION80/tcp open http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)|_http-methods: No Allow or Public header inOPTIONS response (status code 404)|_http-title: Not Found135/tcp open msrpc Microsoft Windows RPC139/tcp ope
| \ x10 |
Probe tcp null q |
The probe command tells nmap to send a specified string to identify the service. The parameters are as follows:
This must be TCP or UDP. NMAP only uses a probe that matches the Protocol it tries to scan the service.
This is a pure English name.
Tell Nmap what to send. It must have a q, marking the start and end of the string with a separator. It allows the following standard escape characters of C or Perl strings: \, \ a, \ B, \ f, \ n, \ r, \ t, \ v, and \ xHH (H i
limitations imposed by any other solution based on the hardware implementation of the data channel. Winpath is the cornerstone of a truly interoperable solution that enables operators to select and deploy the most efficient, feature-rich, cost-effective controllers that can be upgraded without the need to be constrained by hardware devices.Winpath's ability to implement complex SLA capabilities based on its thousands of independent, tiered-tuned queues can provide differentiated services for us
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