Path: csiph.com!weretis.net!feeder8.news.weretis.net!reader5.news.weretis.net!news.solani.org!.POSTED!not-for-mail From: jayjwa Newsgroups: comp.os.linux.misc Subject: Re: Yes, You Need A Firewall On Linux - =?utf-8?Q?Here=E2=80=99s?= Why And Which To Use Date: Tue, 05 Aug 2025 11:30:25 -0400 Organization: Atr2 RG 2025 Message-ID: <87ms8dkcq6.fsf@atr2.ath.cx> References: <106sehe$2kv5n$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain Injection-Info: solani.org; logging-data="3513918"; mail-complaints-to="abuse@news.solani.org" User-Agent: Gnus/5.13 (Gnus v5.13) Cancel-Lock: sha1:sIm2S5YzIHpVcVek2ZmU1k+BGvo= sha1:TxMwF7ksQvYq6iTuke7wPZrs0SY= X-User-ID: eJwFwYEBwCAIA7CXUEor5yAb/59gEs7FFhhETIzEfSoTJkjjds6n/XveNbOqWuV3QMq6gXoCvRCy Xref: csiph.com comp.os.linux.misc:70389 I say it depends on the situation. For a home user, no. Unless you open something there's nothing listening there to exploit. If it's in a business setting, such as an online store then yes. Online stores of places of business like Sony or Amazon are bound to have people banging away on them. A business site might have someone exploit a web UI, and a firewall could stop a connect-back shell. On a multi-user system like a university system, a firewall might stop a user running a netcat listener (by accident or otherwise) and giving shell access out to the world. Having to worry about firewalls, scanning files, and virus scanning on home systems all harken back to the time of the Microsoft systems. Firewalls were a way to stop Windows doing things you didn't want it to do. Windows in the 90s and early 2000s opened up a bunch of ports and services the user might not know about. That doesn't occur on Linux. -- PGP Key ID: 781C A3E2 C6ED 70A6 B356 7AF5 B510 542E D460 5CAE "The Internet should always be the Wild West!"