# Net/ssh: corrupted mac detected **URL:** \ **Category:** Ruby\ **Created:** [January 5, 2006, 5:19am UTC](https://www.ruby-forum.com/t/net-ssh-corrupted-mac-detected/51649 "2006-01-05T05:19:14Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![itsme213](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/258eb7/32.png) [@itsme213](https://www.ruby-forum.com/u/itsme213)\ **Post date:** [January 5, 2006, 5:19am UTC](https://www.ruby-forum.com/t/net-ssh-corrupted-mac-detected/51649/1 "2006-01-05T05:19:14Z")
Never did quite get past this error when using net/ssh. Any suggestions? [I did have the ISP upgrade their ssh some time ago, but they also migrated servers so I can’t be sure]. Any ideas? Thanks! (this is from within a Net::SSH.start, when executing an unzip on the remote machine …) unzip generated\_site.zip -d generated\_site… rake aborted! corrupted mac detected c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/transport/packet-stream.rb:182:in `get' c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/transport/packet-stream.rb:147:in`synchron ize’ c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/transport/packet-stream.rb:147:in `get' c:/ruby/lib/ruby/gems/1.8/gems/needle-1.2.0/lib/needle/lifecycle/proxy.rb:60:in` **send** ’ c:/ruby/lib/ruby/gems/1.8/gems/needle-1.2.0/lib/needle/lifecycle/proxy.rb:60:in `method_missing' c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/transport/session.rb:245:in`wait\_for\_messa ge’ c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/transport/session.rb:240:in `loop' c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/transport/session.rb:240:in`wait\_for\_messa ge’ c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/connection/driver.rb:148:in `process' c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/service/shell/shell.rb:124:in`consume\_conn ection’ c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/service/shell/shell.rb:68:in `stdout?' c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/service/shell/sync.rb:65:in`send\_command’ c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/service/shell/sync.rb:63:in `loop' c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh/service/shell/sync.rb:63:in`send\_command’ C:/des/desktop/methods/cfr/source/rakefile.rb:192:in `ssh_cmd_echo' C:/des/desktop/methods/cfr/source/rakefile.rb:206 C:/des/desktop/methods/cfr/source/rakefile.rb:202:in`initialize’ c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh.rb:47:in `new' c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-1.0.5/lib/net/ssh.rb:47:in`start’ C:/des/desktop/methods/cfr/source/rakefile.rb:202 C:/des/desktop/methods/cfr/source/rakefile.rb:200:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.6.99.2/lib/rake.rb:227:in`execute’ c:/ruby/lib/ruby/gems/1.8/gems/rake-0.6.99.2/lib/rake.rb:227:in `each' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.6.99.2/lib/rake.rb:227:in`execute’ c:/ruby/lib/ruby/gems/1.8/gems/rake-0.6.99.2/lib/rake.rb:197:in `invoke' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.6.99.2/lib/rake.rb:190:in`synchronize’ c:/ruby/lib/ruby/gems/1.8/gems/rake-0.6.99.2/lib/rake.rb:190:in `invoke' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.6.99.2/lib/rake.rb:1673:in`run’ c:/ruby/lib/ruby/gems/1.8/gems/rake-0.6.99.2/lib/rake.rb:1673:in `each' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.6.99.2/lib/rake.rb:1673:in`run’ c:/ruby/lib/ruby/gems/1.8/gems/rake-0.6.99.2/bin/rake:7 c:/ruby/bin/rake:18:in `load’ c:/ruby/bin/rake:18 ---
**Author:** ![itsme213](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/258eb7/32.png) [@itsme213](https://www.ruby-forum.com/u/itsme213)\ **Post date:** [January 5, 2006, 5:31am UTC](https://www.ruby-forum.com/t/net-ssh-corrupted-mac-detected/51649/2 "2006-01-05T05:31:24Z")
A corrupted mac is very often caused by a bug in Net::SSH. Is this a script you can send me, that I can use to try to duplicate the error? - Jamis ---
**Author:** ![itsme213](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/258eb7/32.png) [@itsme213](https://www.ruby-forum.com/u/itsme213)\ **Post date:** [January 5, 2006, 10:05am UTC](https://www.ruby-forum.com/t/net-ssh-corrupted-mac-detected/51649/3 "2006-01-05T10:05:28Z")
On Thu, 05 Jan 2006 04:13:02 -0000, itsme213 [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > machine …) > > unzip generated\_site.zip -d generated\_site… > rake aborted! > corrupted mac detected [… snip …] Either you’ve encountered a Bad Apple (sorry), or something else is wrong. This probably doesn’t help, but I do recall something about a bug around this, but I can’t remember the specifics. I’d still do a bit of a security check to make sure no-one’s sitting between and injecting stuff, but it seems about right. The thing I’m referring to was ‘Corrupted MAC on input’, and Google seems to have some hits. Sorry if that doesn’t help.