diff --git a/builder/amazon/common/ssh.go b/builder/amazon/common/ssh.go
index 685914331..c451bbf96 100644
--- a/builder/amazon/common/ssh.go
+++ b/builder/amazon/common/ssh.go
@@ -88,6 +88,7 @@ func SSHConfig(useAgent bool, username, password string) func(multistep.StateBag
 				Auth: []ssh.AuthMethod{
 					ssh.PublicKeysCallback(agent.NewClient(sshAgent).Signers),
 				},
+				HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 			}, nil
 		}
 
@@ -103,11 +104,13 @@ func SSHConfig(useAgent bool, username, password string) func(multistep.StateBag
 				Auth: []ssh.AuthMethod{
 					ssh.PublicKeys(signer),
 				},
+				HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 			}, nil
 
 		} else {
 			return &ssh.ClientConfig{
-				User: username,
+				User:            username,
+				HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 				Auth: []ssh.AuthMethod{
 					ssh.Password(password),
 					ssh.KeyboardInteractive(
diff --git a/builder/azure/common/lin/ssh.go b/builder/azure/common/lin/ssh.go
index f12ee09ea..7ee5a6064 100644
--- a/builder/azure/common/lin/ssh.go
+++ b/builder/azure/common/lin/ssh.go
@@ -5,6 +5,7 @@ package lin
 
 import (
 	"fmt"
+
 	"github.com/hashicorp/packer/builder/azure/common/constants"
 	"github.com/mitchellh/multistep"
 	"golang.org/x/crypto/ssh"
@@ -32,6 +33,7 @@ func SSHConfig(username string) func(multistep.StateBag) (*ssh.ClientConfig, err
 			Auth: []ssh.AuthMethod{
 				ssh.PublicKeys(signer),
 			},
+			HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 		}, nil
 	}
 }
diff --git a/builder/cloudstack/ssh.go b/builder/cloudstack/ssh.go
index 192293bda..83243a407 100644
--- a/builder/cloudstack/ssh.go
+++ b/builder/cloudstack/ssh.go
@@ -36,6 +36,7 @@ func sshConfig(state multistep.StateBag) (*ssh.ClientConfig, error) {
 			ssh.KeyboardInteractive(
 				packerssh.PasswordKeyboardInteractive(config.Comm.SSHPassword)),
 		},
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 	}
 
 	if config.Comm.SSHPrivateKey != "" {
diff --git a/builder/digitalocean/ssh.go b/builder/digitalocean/ssh.go
index 5367dde1f..ebccb938a 100644
--- a/builder/digitalocean/ssh.go
+++ b/builder/digitalocean/ssh.go
@@ -2,6 +2,7 @@ package digitalocean
 
 import (
 	"fmt"
+
 	"golang.org/x/crypto/ssh"
 
 	"github.com/mitchellh/multistep"
@@ -26,5 +27,6 @@ func sshConfig(state multistep.StateBag) (*ssh.ClientConfig, error) {
 		Auth: []ssh.AuthMethod{
 			ssh.PublicKeys(signer),
 		},
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 	}, nil
 }
diff --git a/builder/googlecompute/ssh.go b/builder/googlecompute/ssh.go
index 5b7940591..5c224f0c6 100644
--- a/builder/googlecompute/ssh.go
+++ b/builder/googlecompute/ssh.go
@@ -27,5 +27,6 @@ func sshConfig(state multistep.StateBag) (*ssh.ClientConfig, error) {
 		Auth: []ssh.AuthMethod{
 			ssh.PublicKeys(signer),
 		},
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 	}, nil
 }
diff --git a/builder/openstack/ssh.go b/builder/openstack/ssh.go
index 3bf003e5e..9957c6163 100644
--- a/builder/openstack/ssh.go
+++ b/builder/openstack/ssh.go
@@ -84,6 +84,7 @@ func SSHConfig(useAgent bool, username, password string) func(multistep.StateBag
 				Auth: []ssh.AuthMethod{
 					ssh.PublicKeysCallback(agent.NewClient(sshAgent).Signers),
 				},
+				HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 			}, nil
 		}
 
@@ -101,12 +102,14 @@ func SSHConfig(useAgent bool, username, password string) func(multistep.StateBag
 				Auth: []ssh.AuthMethod{
 					ssh.PublicKeys(signer),
 				},
+				HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 			}, nil
 
 		} else {
 
 			return &ssh.ClientConfig{
-				User: username,
+				User:            username,
+				HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 				Auth: []ssh.AuthMethod{
 					ssh.Password(password),
 					ssh.KeyboardInteractive(
diff --git a/builder/parallels/common/ssh.go b/builder/parallels/common/ssh.go
index c4c76fabf..8c2c8706f 100644
--- a/builder/parallels/common/ssh.go
+++ b/builder/parallels/common/ssh.go
@@ -44,8 +44,9 @@ func SSHConfigFunc(config SSHConfig) func(multistep.StateBag) (*ssh.ClientConfig
 		}
 
 		return &ssh.ClientConfig{
-			User: config.Comm.SSHUsername,
-			Auth: auth,
+			User:            config.Comm.SSHUsername,
+			Auth:            auth,
+			HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 		}, nil
 	}
 }
diff --git a/builder/triton/ssh.go b/builder/triton/ssh.go
index 9b5f20732..14fd26e31 100644
--- a/builder/triton/ssh.go
+++ b/builder/triton/ssh.go
@@ -3,14 +3,15 @@ package triton
 import (
 	"fmt"
 
-	packerssh "github.com/hashicorp/packer/communicator/ssh"
-	"github.com/mitchellh/multistep"
-	"golang.org/x/crypto/ssh"
-	"golang.org/x/crypto/ssh/agent"
 	"io/ioutil"
 	"log"
 	"net"
 	"os"
+
+	packerssh "github.com/hashicorp/packer/communicator/ssh"
+	"github.com/mitchellh/multistep"
+	"golang.org/x/crypto/ssh"
+	"golang.org/x/crypto/ssh/agent"
 )
 
 func commHost(state multistep.StateBag) (string, error) {
@@ -49,6 +50,7 @@ func sshConfig(useAgent bool, username, privateKeyPath, password string) func(mu
 				Auth: []ssh.AuthMethod{
 					ssh.PublicKeysCallback(agent.NewClient(sshAgent).Signers),
 				},
+				HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 			}, nil
 		}
 
@@ -72,12 +74,14 @@ func sshConfig(useAgent bool, username, privateKeyPath, password string) func(mu
 				Auth: []ssh.AuthMethod{
 					ssh.PublicKeys(signer),
 				},
+				HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 			}, nil
 		} else {
 			log.Println("Configuring SSH keyboard interactive.")
 
 			return &ssh.ClientConfig{
-				User: username,
+				User:            username,
+				HostKeyCallback: ssh.InsecureIgnoreHostKey(),
 				Auth: []ssh.AuthMethod{
 					ssh.Password(password),
 					ssh.KeyboardInteractive(