Linux – Ubuntu not letting me download using anything but apt-get

I'm simply trying to clone a repository from github, but I think my problem spans greater than git or github. I've tried the following methods:

sudo wget 'http://github.com/symfony/symfony/tarball/master

--2010-07-30 07:51:36--  'http://github.com/symfony/symfony/tarball/master
Resolving github.com... 207.97.227.239
Connecting to github.com|207.97.227.239|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers.
Retrying.

--2010-07-30 07:51:38--  (try: 2)  'http://github.com/symfony/symfony/tarball/master
Connecting to github.com|207.97.227.239|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers.
Retrying.

--2010-07-30 07:51:40--  (try: 3)  'http://github.com/symfony/symfony/tarball/master
Connecting to github.com|207.97.227.239|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers.
Retrying.

Since wget wasn't working, I figured I'd try using git (knowing that my firewall was probably blocking the git protocol). As you can see, it looks like the firewall did block it.

sudo git clone git://github.com/symfony/symfony.git

Initialized empty Git repository in /home/myname/symfony/.git/

github.com[0: 207.97.227.239]: errno=Connection refused
fatal: unable to connect a socket (Connection refused)

Since, the git protocol didn't work I figured I'd try the http method.

sudo git clone 'http://github.com/symfony/symfony.git

Initialized empty Git repository in /home/myname/symfony/.git/
error:  while accessing 'http://github.com/symfony/symfony.git/info/refs

fatal: HTTP request failed

So I figured I'd try another method of getting a file from the internet, but to no avail.

sudo curl www.google.com

curl: (56) Failure when receiving data from the peer

So then I tried pinging just to make sure that I see the outside world, and it works!

ping www.google.com

PING www.l.google.com (74.125.91.104) 56(84) bytes of data.
64 bytes from qy-in-f104.1e100.net (74.125.91.104): icmp_seq=1 ttl=49 time=46.4 ms
64 bytes from qy-in-f104.1e100.net (74.125.91.104): icmp_seq=2 ttl=49 time=46.5 ms
64 bytes from qy-in-f104.1e100.net (74.125.91.104): icmp_seq=3 ttl=49 time=46.5 ms

--- www.l.google.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 46.477/46.499/46.512/0.176 ms

apt-get install works successfully. Does apt-get use a different protocol other than http or does it use different ports other than 80?

I should mention that I'm using a VMware installation of Kubuntu 10.04. Has anyone ever encountered a problem like this? What other methods could you think of to narrow down where the problem is coming from?

Note: I had to add a single quote (') before each hyperlink in this post since I don't have enough rep.

@uloBasEI
What was returned is below (minus the HTML of google's homepage)

HTTP/1.0 200 OK
Date: Fri, 30 Jul 2010 16:13:45 GMT
Expires: -1
Cache-Control: private, max-age=0
Content-Type: text/html; charset=ISO-8859-1
Set-Cookie: PREF=ID=217dc6a999f1ffaf:TM=1280506425:LM=1280506425:S=gnL_tcT4FJLh9Cgh; expires=Sun, 29-Jul-2012 16:13:45 GMT; path=/; domain=.google.com
Set-Cookie: NID=37=fIVPDdQeoCyfwgmhtAGDf06le4T450U4v19oMdSBCQQDe67Ys5bHwMaGsnywEjUkGSk0Ex5BRGFDouO5Fsme0uARoU3uTNmeTzKfi4mq-L8jDOtcBTC88cCDg0DSpjBr; expires=Sat, 29-Jan-2011 16:13:45 GMT; path=/; domain=.google.com; HttpOnly
Server: gws
X-XSS-Protection: 1; mode=block