By default GPG uses RFC1950 compression when encrypting a file. Use “–compress-algo none” to disable compression on GPG: /usr/bin/gpg –trust-model always –encrypt –compress-algo none –recipient ‘YOUR KEY NAME HERE’ file.tar/usr/bin/gpg –trust-model always –encrypt –compress-algo none –recipient ‘YOUR KEY NAME HERE’ file.tar To run the command in background use: nohup /usr/bin/gpg –trust-model always –encrypt –compress-algo none […]

Here are some Linux tools that support TLS/SSL connection: 1) GnuTLS has a TLS client tool on Linux, example: gnutls-cli imap.server.com -p 993gnutls-cli imap.server.com -p 993 * Use -s for STARTTLS 2) OpenSSL supports TLS via s_client option, example: openssl s_client -connect imap.server.com:993openssl s_client -connect imap.server.com:993 * Use -starttls imap or -starttls smtp for STARTTLS […]

You can use OpenSSL to create a 1 GB random file in Linux: openssl rand -out sample.txt -base64 $(( 2**30 * 3/4 ))openssl rand -out sample.txt -base64 $(( 2**30 * 3/4 )) 1 Gigabyte is like 230 bytes (you can use 10**9 for 109 bytes instead). The “* 3/4” section is for base64 overhead, making […]

To prevent less from clearing the screen upon exit you can just use -X option: -X or –no-init Disables sending the termcap initialization and deinitialization strings to the terminal. This is sometimes desirable if the deinitialization string does something unnecessary, like clearing the screen. To make less exit if the content fits on one screen, […]