1. UNIX for Dummies Questions & Answers

since putting my pc online, it keeps getting slower and i dig the logfile to have such a surprise: this is just one of a many and I beleived it's a bruteforce attack how do i block this IP 200.41.81.228 from trying to knock my online pc? my system: FreeBSD testing.net 6.2-STABLE-JE... (6 Replies)

2. Cybersecurity

REPLAY ATTACK. Can some one elobrate on measures to encounter this problem of replay atack on network. (3 Replies)

3. IP Networking

A server I host is having very rare glitches where a file the user downloads will have incorrect contents. This almost never happens when I am looking, I caught it once and only once -- a user messaged me saying his antivirus had given him a warning about an image file downloaded from his... (2 Replies)

4. Cybersecurity

About 3 days ago our Apache logs started filling with the following errors: mod_ssl: SSL handshake failed (server <weberver>:443, client 41.235.234.172) (OpenSSL library error follows) OpenSSL: error:1408A0B7:SSL routines:SSL3_GET_CLIENT_HELLO:no ciphers specified These initially were... (1 Reply)

5. Cybersecurity

Hi, I have a belkin router installed and a look at the security log has got me worried a little bit. Security log: Fri Jan 29 20:41:46 2010 =>Found attack from 68.147.232.199. Source port is 58591 and destination port is 12426 which use the TCP protocol. Fri Jan 29 20:41:46 2010 ... (1 Reply)

6. Cybersecurity

Is this an attack attempt? I got an e-mail from 'uucp Admin' last night and again this morning: What does it mean and what can I do about it? Thanks (4 Replies)

7. Emergency UNIX and Linux Support

Dear community, my site was recently attacjed by DDOS technique and goes down in a few minutes. My site runs under Debian/Apache2/Mysql. I identified the IPs who attack me and block it through iptable firewall from debian. Something like: iptables -D INPUT -s xxx.xxx.xxx.xxx -j DROP This... (7 Replies)