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Questions tagged [discovery]

43 questions
26
votes
3 answers

How discoverable are IPv6 addresses and AAAA names by potential attackers?

It is fairly standard to receive a significant number of minor hacking attempts each day trying common username / passwords for services like SSH and SMTP. I've always assumed these attempts are using the "small" address space of IPv4 to guess IP…
Philip Couling
  • 1,850
12
votes
2 answers

Why do you need IPv6 Neighbor Solicitation to get the MAC address?

I'm a software developer and just got a free book about IPv6 at the Techdays, which I'm reading for fun. They gave it away because it's a bit of an old book (W2008), so maybe things are different for other/newer OSes, but I don't understand the…
Edwin
  • 223
4
votes
2 answers

Stepping into a complex environment and taking over

I have been offered a job as an 'engineer' for a large tech company - already working as a systems admin for the government. I wanted your take on how you step into a new job and learn how all the pieces work together. They have approximately 2…
Publiccert
  • 1,112
4
votes
2 answers

Why IPv6 neighbor solicitation uses multicast instead of unicast address?

I'm on Linux and I want to ping fe80::1234:56ff:fe12:3456%eth0 which is connected to the same Ethernet switch as my eth0 interface. I haven't yet communicated with fe80::1234:56ff:fe12:3456 so I don't have its MAC address cached (it's not in ip…
woky
  • 275
3
votes
1 answer

Connecting services in helm

The standard practice in helm charts is to use {{ template ".fullname" . }} for the service name, where the .fullname template expands effectively to .Release.Name-.Chart.name. The later can be overridden by…
Jan Hudec
  • 285
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3
votes
0 answers

nmap reports IP address is active, when the network device is turned off?

I want to remotely examine if some servers are up. I don't use the ping command because it gives a lot of wrong results like "destination host unreachable" and "request Timed out" due to bad networking infrastructure. I try to use nmap command to…
saber
  • 31
  • 3
3
votes
1 answer

Windows Server 2012: How to activate network discovery in GPO?

I use terminal-server Windows Server 2012 and I need to create a map drive GPO, but it doesn't take effect and I think it might be because I nee to activate network discovery. How to enable network discovery in GPO in Windows Server 2012?
Eduard Florinescu
  • 859
3
votes
2 answers

Is there a way to get a list of Hadoop cluster machines from one of the data nodes?

I have access to a data node in a Hadoop cluster, and I'd like to find out the identity of the name nodes for the same cluster. Is there a way to do this?
Yuval
  • 217
2
votes
0 answers

How to discover SNMP devices

I'm looking to set up a monitoring system and was reading quite a bit about SNMP. I don't yet have practical experience with it. I didn't quite understand how an NMS discovers SNMP capable devices. To put it simply, what I gather is that it's a two…
DannyL
  • 121
2
votes
1 answer

Discovering single or specific iscsi targets

I am using iscsiadm -m discovery -t sendtargets -p 10.1.1.100 to discover new targets and then iscsiadm --mode node --targetname iqn... --portal 10.1.1.100:3260 --op=delete to delete any targets I do not need. Can I run discovery for specific…
GeorgeKaf
  • 185
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2
votes
1 answer

etcd2 fails on my CoreOS with my very simple setup

I want to setup a 3 nodes cluster running my own discovery service and I am following this simple guide for static discovery. I know my 3 machines IP addresses and here is when I try to start etcd2 on the first machine: etcd2 -name infra0…
Rox
  • 441
2
votes
2 answers

I have a list of netbios names and want to find the IP addresses

DNS is spotty in the network, but netBIOS in enabled on most machines. I have a dozen netBIOS names for Windows servers somewhere in the network. It is impossible to just go to all machines, log in and ipconfig them. I don't know in the world…
Wolf Halton
  • 31
2
votes
1 answer

Importing .eml files into Exchange Discovery Folder

I am needing to import over 18mm eml files into Exchange (this is for a client, so I'm restricted on what I can do - flexibility). They do not want these emails to go to the actual users email, so they do not want them to show up in the users inbox,…
Chad Gorshing
  • 21
2
votes
0 answers

SCCM Application Discovery Won't Run

I have a strange issue with a single CM client machine, the application discovery will not run. I go to control panel and try to manually run the action but the logs show nothing new in appdiscover.log. Everything seems ok including software…
user143264
  • 21
2
votes
1 answer

Solaris 10 new disk discovering

I'm having issues with a Solaris 10 SPARC host... It seems not able to discover newly provisioned disks. The disks are fed through a QLogic 2300 FC HBA. I've tried cfgadm -al/cfgadm -f -c configure c0 + cfgadm -f -c configure c1, devfsadm -Cv as…
Jack Z
  • 329
1
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