When I run dmesg, I get "ABORTED IN=eth0 OUT= MAC=00:05:5d:50:fe:84:00:80:c8:b3:80:e0:08:00 SRC=64.58.213.19 DST=192.168.0.101 LEN=40 TOS=0x00 PREC=0x00 TTL=114 ID=28476 DF PROTO=TCP SPT=80 DPT=2187 SEQ=1658067084 ACK=1486274416 WINDOW=0 RES=0x00 ACK RST URGP=0" over and over again. "aborted" is my username, and I'm using Slack 9.1. Can anyone help me out with this? Is it normal? When browsing the internet, it does seem kind of funny; some sites take much longer than they should to load, some I just can't go to anymore, and some work perfectly normal.

That's a log entry from iptables. The host 64.58.213.19 is sending a tcp packet to 192.168.0.101. From the log entry it is not clear what happens to the packet but I presume it is dropped since it doesn't make much sense to log packets that are accepted. The destination port 2187 doesn't ring any bells but given the hostname of 64.58.213.19, which is pimp-daddy.crackhoe.com, it might very well be an attempt to install some sort of spyware. However, assuming this packet is indeed dropped there's nothing to worry about even if the host 192.168.0.101 on your LAN is a windows machine. This, after all, is what a firewall is for.

Porn sites are usually slow ;P

LOL OK, thank you very much, demian, that's relieving. And unforgivn, it's an e-mail service, not a porn site.