routers – Internetblog.org.uk https://www.internetblog.org.uk Web hosting, Domain names, Dedicated servers Fri, 29 Jan 2016 11:05:52 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.5 https://www.internetblog.org.uk/files/2016/01/cropped-favico-32x32.png routers – Internetblog.org.uk https://www.internetblog.org.uk 32 32 How do I block clusters of IP addresses? https://www.internetblog.org.uk/post/1119/how-do-i-block-clusters-of-ip-addresses/ Mon, 22 Mar 2010 15:09:13 +0000 http://www.internetblog.org.uk/post/1119/how-do-i-block-clusters-of-ip-addresses/ IP address on a screen
Question: How do I block clusters of IP addresses?

Answer: Although we previously illustrated a method of blocking single IP addresses using an .htaccess file, it is important to know a few things.

1. Many hackers use proxies and other methods to use fake IP addresses. Blocking the one they have faked might actually block a legitimate user.

2. Even if you do have the right IP address for the right attacker, there is no guarantee they will continue to use that address, as it might be dynamic.

3. An attacker may use a cluster of IP addresses to initiate an attack (i.e. 66.328.203.000), but blocking an entire range of IP addresses, particularly ones that could point to home routers, will inevitably also block potential users.

The other option is to rely on hostnames rather than IP addresses. The problem with hostnames is that these too can be forged. That only leaves one real option, the option that should take precedence anyway. Secure your server to make it as difficult as possible for attackers to get in, and even if they do get in, make it difficult for them to do damage. Most will give up if doing damage takes to long or if their automated attack bots fail. Make your firewall airtight, install application firewalls like Modsecurity, and make it impossible for an outsider to gain root access.

Photo Source: Flickr

]]> As Data Centers expand, router and switch sales grow https://www.internetblog.org.uk/post/1028/as-data-centers-expand-router-and-switch-sales-grow/ Tue, 23 Feb 2010 20:02:53 +0000 http://www.internetblog.org.uk/post/1028/as-data-centers-expand-router-and-switch-sales-grow/ Ethernet switch
A market research firm called Dell’Oro Group has released a report that finds the market for ethernet switches has grown by 20% in the last quarter of 2009. Cisco, HP, and Juniper, three of the big players have added $600 million in revenue, and the research firm expects the market to continue to grow in 2010 from $15.6 billion to 16.3 billion.

“Year-end budget spending and supply constraints from the previous quarter helped propel market growth in the fourth quarter,” said Alan Weckel, director of the market research firm’s Ethernet Switch research, in a statement. “We expect the market to continue to expand in 2010, especially as 10 Gigabit Ethernet continues to grow not only as a server connectivity technology, but also as an aggregation technology within the data center.”

The news comes after it seems Cisco intends to end its partnership with HP, a move that has not thrilled the latter. IBM, which partners with Juniper is also expected to expand its services, requiring more routers and switches. As data centers continue to grow both in number and size, the expectation is that the demand will increase and the competition will continue to heat up.

Source: InformationWeek
Photo: Flickr

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