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Trace DNS Lookups
Interesting: [dave@store01 ~]$ dig +trace xdroop.com ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-20.P1.el5_...
dnstop
dnstop is a tool for monitoring dns requests on a particular network. It is a libcap snooper, so ...
SOA values
(2019-09-11) I've only been doing this for 25 years, I guess it's high time I learned what it all...
Dump A DNS Zone
Problem You want to know what the current content of a DNS zone is. Possible Solution This will w...
Delegation Of in-addr.arpa Subdomains
(12 October 2012) Problem: I need to delegate part of my /24 to another name server. Solution Thi...
Counting Denied Queriers
(2016-05-09) Problem Show IPs getting denied responses to queries on my local DNS server, sorted ...
CAA
(2018-10-16) Problem What is CAA record Solution CAA record is a DNS record that indicates who is...
zone forwarding
(2013-03-28) Problem I want to tell a BIND server that a particular DNS zone can be resolved at s...
Bind Logging
Log to a file with enough information to make it useful. CAUTION: there's no built in log rotatio...
dhparams
2023-06-30 About generating dhparams with 4096 bits instead of 2048 bits When you use dhparam, O...
DH group to OAKLEY_GROUP table
(2023-10-31) DH Group to OAKLEY_GROUP values DH Oakley DH Group 1 768-bit MODP Group DH ...
Daemon Tools
Hi Dave Finally got the daemontools on netmon01 to supervise radiusd, and it should restart if th...
saslpasswd2
This is the utility for creating, changing, and deleting users and passwords from the local sasl ...
sasldblistusers2
Lists the contents of the sasldb2 database. # sasldblistusers2 cyrus@gwx1: userPassword dave@gwx1...
SASL build
(Note from 2024: probably dangerously outdated) Customer Information (brains) : # export PATH=/op...
gcc on Solaris 8
These are some potentially useful things to know when fighting with gcc on Solaris (Solaris 8 in ...
KVM, briefly
(2020-03-13) KVM Briefly # virsh list # virsh list --all # virsh start <name> # virsh dominfo <na...
sudo without password
(2017-05-30) Problem I don't want to get prompted for sudo access. Solution Run visudo At the...
Port Forward
Problem Port-forward firewall outside, port 5000 to inside IP 192.168.1.100, port 8080. Solution ...
Port Span
Session Monitoring This is the vocabulary that Cisco uses to describe port mirroring, port monito...