diff options
| -rw-r--r-- | lib/net/imap.rb | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/net/imap.rb b/lib/net/imap.rb index 3d33b94fdd..b42186dce0 100644 --- a/lib/net/imap.rb +++ b/lib/net/imap.rb @@ -1129,7 +1129,9 @@ module Net end def tcp_socket(host, port) - Socket.tcp(host, port, :connect_timeout => @open_timeout) + s = Socket.tcp(host, port, :connect_timeout => @open_timeout) + s.setsockopt(:SOL_SOCKET, :SO_KEEPALIVE, true) + s rescue Errno::ETIMEDOUT raise Net::OpenTimeout, "Timeout to open TCP connection to " + "#{host}:#{port} (exceeds #{@open_timeout} seconds)" |