Charter Communications

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The primary provider for off-campus broadband connections in [[Houghton, Michigan]].
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The primary provider for off-campus [[broadband]] connections in [[Houghton, Michigan]].
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Is known to block ports 25 and 80.
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Residential accounts are known to have the following ports blocked:
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*21 (FTP)
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*23 (TELNET)
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*25 (SMTP)
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*80 (HTTP)
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*110 (POP3)
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Some sources say that if an email server is detected on a residential account, the internet connection will be stopped entirely. 
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These limitations do not apply to Charter Business accounts.
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[[SBC|AT&T]] (formerly SBC (formerly Ameritech)) also provides DSL service in the area. SBC also blocks outgoing port 25 (SMTP), but does not block other services.

Latest revision as of 06:03, 25 November 2010

The primary provider for off-campus broadband connections in Houghton, Michigan.

Residential accounts are known to have the following ports blocked:

  • 21 (FTP)
  • 23 (TELNET)
  • 25 (SMTP)
  • 80 (HTTP)
  • 110 (POP3)

Some sources say that if an email server is detected on a residential account, the internet connection will be stopped entirely.

These limitations do not apply to Charter Business accounts.

AT&T (formerly SBC (formerly Ameritech)) also provides DSL service in the area. SBC also blocks outgoing port 25 (SMTP), but does not block other services.

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