Interesting video (in French) explaining man-in-the-middle attack. for more information concerning the attack, click here Tools used during this demo. Nmap : network scanner. Ettercap : man in the middle utility. Wireshark : network packet reader. Metasploit : hacking framework. This video and all information from this post are only for educative purpose, it’s totally illegal to use it in public or corporate network.
DKIM is an email authentication method designed to detect email spoofing, for more detail : Wiki DKIM, i’m describing in this post how to enable it with Zimbra. Make sure your DKIM has been enabled in your mail server. Add DNS TXT record: 148ERADC-FCE5-11E6-AF44-005A1B26B745._domainkey IN TXT v=DKIM1; k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDg2uVLIssdfsfgu62+c7n0sxugzm8Lpr4A7o7veL4kIeifat2hD53P2KKQTV978HxBTQKrEFByLbG0WZuNracNJU9L5NOKtmYnE7ksxF9ODMKqFK+ltsmM9qkVxbU3xQOVdufDlV2Zk8Ya0WMkYWzKgWIwIDAQAB Test DKIM signature by sending email using this website: http://dkimvalidator.com/
Ping – NS Network tools Tools WhoisDomain information DigList DNS record TraceTrace IP addresses Scan NetworkCheck all devices in your network Download Mobile App
I will describe the basis in python to import xlsx file and how to handle the imported data, in this exemple sales orders is imported. Uploaded file is stored in the variable upload_file and is encoded in base 64, to read it we have to decode first the data by using b64decode function, then save it, for me i chose “/tmp” folder. Result import_data is an array of dictionary as follow [{‘column_name_1’:data_column_1_row_1, ‘column_name_2’:data_column_2_row_1,…},{‘column_name_1’:data_column_1_row_2, ‘column_name_2’:data_column_2_row_2,…},…] Bellow XML view for the importation module.
Remote desktop sometimes gives me this error message “The terminal server has exceeded the maximum number of allowed connections.” It means my previous remote desktop session has been lost or allowed connections are full. I order to solve this, if you don’t mind losing your unsaved work, you will need to kill a session to open a new one, replace 192.168.1.1 by your server’s IP on the following command.
Bellow script will list incoming connections and remote ip geo localization of the server, it will search in logs file emails addresses related to the remote ip address. usage : ./script.sh {port} exemple :
