A device for actively steering and tensioning a web as it moves along a predetermined path is described. The cleaning blade includes an end portion positioned in the generally C-shaped indentation. The server blade may be configured to detect a malicious code occurrence in traffic on the network. The protruding parts are inserted into solder supply ports of the lead frame, whereby the chip and the lead frame are tentatively assembled. The second passage is approximately aligned with the first passage, and is disposed between the first passage and one of the first surface and the second surface of the structure. The system may receive a list of links.