trangnth

Keybase proof

I hereby claim:

• I am trangnth on github.
• I am tranguet (https://keybase.io/tranguet) on keybase.
• I have a public key ASAHOVHzQLmglkEBA2pxXU5BbEnsORfXjsn4m_GaotN9-wo

To claim this, I am signing this object:

trangnth

Cấu hình wazuh - nmap auto scan

Mô tả

• Cảnh báo mỗi một host mới tham gia hoặc không tham gia vào dải ip được quét
• Cảnh báo mỗi khi một port bất kỳ của host mở hoặc đóng (thay đổi trạng thái)
• Thực hiện cấu hình trên wazuh server

Tham khảo

trangnth

Wazuh config alert telegram

Tham khảo:

https://sys-adm.in/security/850-ossec-otpravka-uvedomlenij-v-telegram.html

• Thêm đoạn cấu hình sau vào file config của ossec /var/ossec/etc/ossec.conf

<ossec_config>

trangnth

How to enable the MySQL/MariaDB general query logs

1. Enter to MySQL/MariaDB server command-line tool (change root with your username and password):

mysql -u root -proot

2. Set the general log file path:

SET GLOBAL general_log_file='/var/log/mysql/mycustom.log';

trangnth

  // For all the confusing Prometheus configuration and
  // regular expressions,
  // explained in examples.


  // Remember, there are default values for each item if it's missing.
  // regex is (.*),
  // replacement is $1,
  // separator is ;
  // ,and action is replace 

trangnth

Quick cheat sheet of helpful tmux commands

1. tmux new - Create and attach to a new session.
2. tmux new -s NAME_HERE - Create and attach to a new session named NAME_HERE.
3. CTRL-b, d - Detach (i.e. exit) from the currently-opened tmux session (alternatively, tmux detach). Note, this means press and hold CTRL, press b, release both, press d.
4. tmux ls - Show list of tmux sessions.
5. tmux a - Attach to the previously-opened tmux session.
6. tmux a -t NAME_HERE - Attach to the tmux session named NAME_HERE.
7. CTRL-d - Delete (i.e. kill) currently-opened tmux session (alternatively tmux kill-session).
8. CTRL-b, [ - Enter copy mode, and enable scrolling in currently-opened tmux session. Press q to exit.
9. CTRL-b, " - Split window horizontally (i.e. split and add a pane below).

trangnth

#!/usr/bin/perl

use Digest::HMAC_MD5 qw/ hmac_md5_hex /;
use DBI;
use URI::Escape;
use CGI;

print "Content-type: text/html\n";

my $q = CGI->new;

trangnth

• Flow of lua nginx module directives: https://openresty-reference.readthedocs.io/en/latest/Directives/
• body_filter_by_lua documentation: https://github.com/openresty/lua-nginx-module#body_filter_by_lua
• Following sample is from this site: https://groups.google.com/d/msg/openresty-en/5PWmL2f70x8/R2DUMsNUAgAJ

http { 
    proxy_cache_path /tmp/cache levels=1:2 keys_zone=cache:60m max_size=1G; 
    server { 
      listen 8080; 

      location /replace-body { 

trangnth

upgrade rabbitmq từ 3.6.x -> 3.8.16

backup lại user password

Listing users
monitor [monitoring]
openstack       [None]
guest   [administrator]

trangnth

• list messages trong 1 partition

kafkacat -b 10.5.69.6:9092 -t imap-2 -p 1

• Metadata listing:

root@trangnth-kafka:/opt/confluent# kafkacat -L -b 10.5.6.6:9092 -t imap-2 
Metadata for imap-2 (from broker 1: 10.5.6.6:9092/1):