Network Management

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Network Management involves issues that are independent of specific hardware or software, including email policies, upgrade planning, backup scheduling and working with managed service providers for Desktop-As-A-Service (DaaS), Software-As-A-Service (SaaS) and the like through the use of tools, coupled with manufacturer standards, best practice guidelines, policies and procedures plus all other relevant documentation. Network management also includes monitoring, alerting and reporting, management reporting, planning for device or service updates, the backup of configurations, the setting of key performance indicators and measures (KPIs/KPMs), associated service level agreements and problem records as part of the IT Service Management (ITSM) framework.

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Hi guys

I'm currently working on all of the licenses across our estate. I ran the Microsoft SAM tool and of course in the report we have so many users/mailboxes/devices which are over the licenses we actually have.

I'm trying to work out a way which I can get a report into an Excel sheet with the following to help me with all of the licensing:

a.  All of the people who have not accessed their mailboxes for over 2 months (the plan is to backup and then remove those mailboxes)
b. All of the mobile devices that have got Exchange emails added to them.
c. All of the computer devices that have not accessed or been active or no longer on the network.

Is this feasible? As it will hopefully help with getting rid of stale and unused records to aid me with organising our licenses.

Thanks a lot for helping
Yashy
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ON-DEMAND: 10 Easy Ways to Lose a Password
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ON-DEMAND: 10 Easy Ways to Lose a Password

Learn about the methods that hackers use to lift real, working credentials from even the most security-savvy employees in this on-demand webinar. We cover the importance of multi-factor authentication and how these solutions can better protect your business!

Dear Experts

to setup new office what IP addressing is recommended as it is common to use 192.168.1.0/24 but I would like to go for something different and this network will have to be get connected over the VPN from other location and they may be using 19.168.1.0/24,  this new network yet to be setup will have internal dns and dhcp and leased line and mpls connectivity. the total users or end devices within this network will not be more than 75, I prefer other than 192.168.1.0/24 is there a recommend/best  practice in selecting a particular ip addressing for private lan network please suggest,  is it good to go with 192.168.0.1/24 or something like 192.168.100.0/24 or any other ip addressing recommended please suggest.
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Anyone knows Aruba controllers well?   They normally pass through the same VLAN on the main switch, or the management VLAN.
Wonder why Aruba not recommending doing a direct heartbeat between Active and Passive controllers.  Using 7030 controllers at this point.
Normally I do a direct heartbeat between Cisco controllers.  But Cisco has a dedicated HA port for this.  Arubas not.  7030 controllers have 8 fiber and 8 copper ports.
 Anyone knows about it and have an advice?
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Does anyone know what MIB to use on a NetGear switch to gain the port and MAC address (of the connected server) via snmpget?  Snmpwalk gives me pages and pages of info but does not include what I'm looking for.

Thanks in advance.
-Steve Carpenter

UPDATE:  The short story is that you cannot get this info via snmp from a NetGear Pro series.
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Hi All,

Trying to copy a config from a Production switch to Backup switch that will act as a backup hot spare. I matched the ios correctly and was able to back up the config from Production, however when I restore the config to the backup switch it gives some errors because I am connecting via tftp on port 1 of the backup switch and assigned an address to connect.

Do I have to fix manually or is there a clean way of connecting via tftp and restoring. There is no usb or other connection ports in that back such as using a cross-over. Thanks in advance for you assistance
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I have noticed on some Aruba wireless controllers the spanning tree is disabled.  Is there a reason to disable a spanning tree on aruba wifi controllers or on any wireless controllers?
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We use Emco Remote Shutdown to reboot our computers a couple times a week because I have the users only log off and not shut down.  Emco is a great product, however, the cost has now skyrocketed.

So I am asking EE if anyone has used a different product that is cost effective?
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Hi,

I built a new office in Chicago, but our staff is always play games and watch movies in office, I banned many address in the firewall, but too many address, it needs to be set so many rules in the firewall, obviously can't do that, who knows what kind of equipment or service can do it, I want to buy it.

Many thanks,
Kai
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Linux admin supporting Macs.  I have a good Linux helpdesk candidate that will be require to support Macs in the future as well.  Would that be a huge knowledge curve for a good Linux admin to support Macs?  He claims almost 0% mac knowledge.
I know Linux guys very intuitive supporting Networking stuff (Cisco, etc.)  Not sure about Mac OS tho.
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I have a Windows 10 PC (Version 10.0.17134 Build 17134) where a VMware is installed (Version 12.5.9 build-7535481) with Windows 10 (Enterprise N 2015 LTSB). We have a problem with the IP address of this "VMware PC". The "hosts" file in C:\Windows\System32\drivers\etc, there is the entry for the VMware PC as WIN10PC (see attachements). There is a second "hosts" file in C:\WinSxS\amd64_microsoft-windows… without any entries, but trying to add the WIN10PC entry also there fails because of the message:

Cannot save "amd64" hosts fileHowever, I have opened this hosts file only in the Notepad++ app. A ping on WIN10PC cannot find the address of 172.10.10.153 and returns the own IP address of the Windows 10 PC, which is 172.10.10.150. The arp command does not enlist the WIN10PC address of 172.10.153 at all, and an "arp -s" command will not add this IP address (see attachements). Interestingly, my colleagues can "see" the VMware machine from their PCs!

Do you have any idea what's going wrong?
hosts.txt
20180627-VMware-Windows-10.txt
20180627-Windows-10-PC-2.txt
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How do you know if your security is working?
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How do you know if your security is working?

Protecting your business doesn’t have to mean sifting through endless alerts and notifications. With WatchGuard Total Security Suite, you can feel confident that your business is secure, meaning you can get back to the things that have been sitting on your to-do list.

Hi,

I have a pfSense router at an office I manage.  I'm not very familiar with it but I've gone through the options on it and read up about it a bit.  I'm having a problem that I'm not sure how to resolve.  The ISP has notified the office that there has been malicious requests our IP address directed at other servers.  The information they sent shows that the "PORT HIT" was "x.x.x.x:49039->x.x.x.x:23".  I found a packet capture on the pfSense and set it to listen on the LAN interface and put 49039 in for the port number.  I started the packet capture but I don't see it reporting anything nor do I know where to find the log or output of the packet capture.  It looks like this pfSense router is from a July version in 2015 so it looks like the firmware needs to be updated.  This router looks very powerful and I'd like to learn more about it.  I'm used to using Sonicwalls routers mainly so this is a little different.  Oh, and here's a real strange thing that's going on there.  I called the ISP and told them that I wasn't sure where the IP address that is reporting the malicious activity is at.  The IP on the WAN side of the router ends in 69 and the reporting IP is 71.  They said that they were not able to see any devices ARPing to that IP address at that moment.

If I check the WAN IP on one of the networks in the office (there are 7 suites--so there are at least 8 VLANs), it ends in 71.  I've scanned all 8 of the computers on that reporting network but nothing came up …
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Would it be beneficial mixing up different switches models in the same office.  For example we're using C3850 access switches and need to add few more to cover the entire office.
Cisco recommends going with new C9300 for the access layer.  Would it create some operational issues?  I like to keep a consistency but like to evaluate a potential upgrade.
Advice?
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We have total 7 scope configured in DHCP out of which 3 is showing blue exclamatory mark, when I click on display statistics for these 3 scopes all value is showing zero only. Event logs showing error messages like "DHCP client request from C42F909FAB66 was dropped since the applicable IP address ranges in scope/superscope VLAN40 are out of available IP addresses. This could be because of IP address ranges of a policy being out of available IP addresses." for all these 3 scopes only. However all these scopes are not more that 50% occupied.

DHCP lease is 10 hours for all scopes except scope for mobile user.

In DHCP properties DNS Tab
""Dynamically update DNS record only if requested by the DHCP clients"" is checked.
""Discard A and PTR records when lease is deleted"" is also checked.

Assign IP addresses dynamically to clients of: is DHCP

In DNS Scavenge stale resource records are set as No-refresh interval 3 days and Refresh interval 4 days for all the zones and scavenging Period is 1 Day.

I performed the reconciliation and restarted the DHCP services in both DC and is ADC. Also I checked by restarting our ADC as it was also showing the same thing but it also doesn't work however I have not cheeked  by restarting our DC yet.

Please suggest if anyone having the solution for this.
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What are the steps necessary to disable SNMP polling on a Kyocera TASKalfa 3051ci network printer?

I have logged onto this printer within a web browser using its IP address but I'm not sure where to go to disable the SNMP polling.

Attached is the manual for this printer.

TASKalfa_3051ci...Re_03_-ENG-.pdf
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Dear Experts, I'm testing the SPAN feature in Switch Cisco 3750. This is the diagram:

SPAN.png
This is configuration on Core SW:

monitor session 1 source vlan 55 both
monitor session 1 destination interface g1/0/13

Open in new window


It seems like working but the whole vlan 18 was hang, so I could NOT access the PC which was installed wireshark. How can I fix it? Can we just mirror traffic from some IP addresses, not all VLAN?

Many thanks as always!
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Hi Everyone,

I am using the Fortimanager 400C (v5.2.10-build0786 170112 (GA)) Some fortigate units are not adding  I am not able to ping them from Fortimanager while I am able to ping Fortimanager from Fortigateunit I am trying to add Fortigate60D (v5.2.9,build736 (GA)) I have adrteady check the FMG_Access is enable on the Fortigate 60D.

Please asssit me.
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Why Document Management is Necessary for organization?
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The current Network setup is customer site connected one SIP trunk each in US and Europe respectively
over MPLS Network. The customer is asking for cross region resiliency in SIP Trunks, is it possible? I'm not sure
if inter continent trunking will cause any issues? Please provide pros and cons.
0
Dear experts,

I am new to the DNS and DNS load test. Now i have task to test Load Test on two BIND9 servers [RHEL6]. I had googled it and i found dnspref is good tool to evaluate throughput and latency. However, I need a script to do this task. I will be very helpful for me if any one share the info.

thanks,
Maddy..
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Introducing the "443 Security Simplified" Podcast
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Introducing the "443 Security Simplified" Podcast

This new podcast puts you inside the minds of leading white-hat hackers and security researchers. Hosts Marc Laliberte and Corey Nachreiner turn complex security concepts into easily understood and actionable insights on the latest cyber security headlines and trends.

Hello,
I have mikrotik 951
I have internet router with ip 192.168.1.254  and the mikrotik ip Is 192.168.1.253 I add a route to 192.168.1.254 with pref 192.168.1.253 also i have dhcp server on 192.168.1.254 that give the client getaway and dns  as 192.168.1.253 to point it to mikrotik.
till now the internet work on the client without any problem.
when i try to add a hotspot the internet stoped , the client login but no internet.
please note that i setup the hotsport from wizard. and also i disabled the dhcp server after that
so where is the problem ?
thanks.
0
Hello
I have a security requirement for my network to alert us via email when windows event logs and switches, firewalls etc, stop sending logs.

I do use Netwrix and I have been testing various syslog servers.

The requirement is:
" Where possible, configure the and network device log collectors to generate an alert in the event a device stops sending logs to the centralized log collector for 24 hours."

Does anyone have any experience with accomplishing this? What tools are you using to automatically generate alerts when logs stop?

I am open to using any Microsoft or 3rd party tool to make this happen.

Thanks
0
SIEM must examine concepts of normality and abnormality traffic/data flow patterns. SIEM need to constitute use of adaptive intelligence. Companies need to evaluate SIEM products based on their own objectives to determine the product that best meet their needs.
2

Expert Comment

by:Gökhan POLAT
Comment Utility
Great article 👍
0
I have a Seagate Central NAS drive at home and it has been working fine until just recently.

I can no longer connect to the NAS contents through Windows Explorer; I see it listed on network items but am unable to view the contents. I am able to connect to the Seagate Manager which shows me the IP address connection, users etc etc; I can change its name and it is reflected in Windows Explorer which shows that it is connected to the network.

I have read that it is something to do with Server Message Block v1 (SMB v1) settings which have been updated in Windows 10. I have tried updating the firmware on the NAS but it says it is already running latest firmware.

Any suggestions for overcoming this?? NAS holds all of our files; documents, music, photos etc.
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We are trying to locate serial number of Cisco UCS, we have access to Cisco unified communications manager, we have lost password for Cisco Enterprise License Manager ( CLI doesnt work, because passwords dont work).

Is there anyways to find out the serial number of the device through CUCM?
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I wanted to find the real IP address of a site as sometimes Akamai (came across a few cases) CDN
cause issues & if I browse the actual IP (without going thru Akamai), the sites load Ok without
error.

I found the following link but seems like they 'hang' or can't load:  did anyone manage to get
the sites below to work or can offer alternative ways to find the actual real IP (not the CDN IP)?
  https://geekflare.com/find-real-ip-address-of-website-powered-by-cloudflare/   ==> this url is ok
  http://crimeflare.org:82/   ==> not this, connection error
  http://namebase.net:82/  ==> not this : connection error
0

Network Management

13K

Solutions

15K

Contributors

Network Management involves issues that are independent of specific hardware or software, including email policies, upgrade planning, backup scheduling and working with managed service providers for Desktop-As-A-Service (DaaS), Software-As-A-Service (SaaS) and the like through the use of tools, coupled with manufacturer standards, best practice guidelines, policies and procedures plus all other relevant documentation. Network management also includes monitoring, alerting and reporting, management reporting, planning for device or service updates, the backup of configurations, the setting of key performance indicators and measures (KPIs/KPMs), associated service level agreements and problem records as part of the IT Service Management (ITSM) framework.