nslookup command + other dns info

windows nslookup nslookup -d2 mydomain.com returns extensive DNS info running in interactive mode: nslookup server [DNS server IP] set type=a (or mx, ns, cname, soa, srv, ptr) great site for dns health check: http://www.intodns.com note: NS records should match domain registrar NS records in windows DNS the command dnscmd /statistics will return useful statistics such […]

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ping command

windows ping C:\WINDOWS\system32>ping 192.168.1.10 Pinging 192.168.1.10 with 32 bytes of data: Reply from 192.168.1.10: bytes=32 time=2ms TTL=64 Reply from 192.168.1.10: bytes=32 time=6ms TTL=64 Reply from 192.168.1.10: bytes=32 time=2ms TTL=64 Reply from 192.168.1.10: bytes=32 time=2ms TTL=64 Ping statistics for 192.168.1.10: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times […]

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active directory: password behavior

administrator password reset: password history – no password min. age – no password complexity – yes user password change: password history – yes password min. age – yes password history – yes scenario: administrator reset of user password, if user must change password at next logon is enabled then the user is able to change […]

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chrome: disable enhanced bookmarks

i typically find most of google’s UI changes to be fairly reasonable (excluding the google+/hangouts change). i really disliked the huge blocky “enhanced bookmarks” that debuted in recent chrome releases though. this is something that i could not get used to. i have 100’s of bookmarks and i need to have a list view. why […]

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active directory: password migration with ADMT

ADMT is installed in the destination/target domain. a password migration dll is installed on a DC in the source domain. DNS – create a conditional forwarder or stub zone for the other domain’s zone trust settings: forest trust, two-way, both domains, forest-wide authentication also the current release of ADMT will definitely not install on anything […]

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wireshark filters & other info

quick example: display filter “ip.src == 10.10.10.10 or ip.dst == 10.10.10.10” jimmie has pointed out that using “ip.addr == 10.10.10.10” is simpler ip.addr == 10.10.10.0/24 will list all addresses for a particular network tcp.port eq 636 will list all entries for a particular port typing a protocol name such as “ldap” or “ssl” will filter […]

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exchange 2007: populating distribution group from csv

Import-Csv [path to csv] | ForEach {Add-DistributionGroupMember -Identity [dist group] -Member $_.PrimarySmtpAddress} the csv would look like so: PrimarySmtpAddress user1@mydomain.com user2@mydomain.com …and so on… when rerunning the powershell command above on an updated csv, it will display a quick error for entries that are already dist. group members and continue processing new additions. the above […]

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cybersecurity news links

https://www.us-cert.gov/ncas http://www.threatbrief.com http://www.tripwire.com/state-of-security/ http://www.insidecybersecurity.com https://www.recordedfuture.com/blog/ http://www.cyberreconnaissance.com https://blog.cyveillance.com http://www.datalossdb.org https://www.fireeye.com/cyber-map/threat-map.html

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idrac firmware update: failed to access virtual usb device

on a poweredge r510, i was trying to use the latest DUP to upgrade the idrac firmware and received “failed to access virtual usb device” followed up by the update failing to apply. i saw some forum posts saying that having an older version of OMSA installed could cause this. i installed the latest OMSA […]

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unresponsive windows 2012 r2 domain controller

another issue with vmware tools occasionally showing up as “not running”. i’ve definitely pinpointed an issue with vmware tools 5.5u1. i’d recommend not installing this version if it can be avoided. the windows event log listed event id 16001 – “a TDI filter (\driver\vnetflt) was detected. this filter has not been certified by microsoft and […]

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