diff --git a/go.sum b/go.sum
index a3c7775..14ee240 100644
--- a/go.sum
+++ b/go.sum
@@ -1,50 +1,14 @@
-blitter.com/go/cryptmt v0.0.0-20181209042848-f3e54a9d98fa h1:M9Ewnr7XZYJANeUj9Jm1ucMwL8rEyHgXcHhIw3RQtB8=
-blitter.com/go/cryptmt v0.0.0-20181209042848-f3e54a9d98fa/go.mod h1:tdME2J3O4agaDAYIYNQzzuB28yVGnPSMmV3a/ucSU84=
-blitter.com/go/cryptmt v1.0.0 h1:n+cNP/ReZrNe/w5FbD8DSfv0Wpj48nxhmMoLEk4hPXs=
 blitter.com/go/cryptmt v1.0.0/go.mod h1:tdME2J3O4agaDAYIYNQzzuB28yVGnPSMmV3a/ucSU84=
-blitter.com/go/goutmp v0.0.0-20181114075424-907ffc4058d9 h1:kcFQxwfPpVMBcLg9GIcHJmSW4ZNrcpeTUFD8wpIwu9Y=
-blitter.com/go/goutmp v0.0.0-20181114075424-907ffc4058d9/go.mod h1:gtlbjC8xGzMk/Cf0BpnVltSa3awOqJ+B5WAxVptTMxk=
-blitter.com/go/goutmp v1.0.0 h1:9BPQTnahoMHyF+IC8gj/Em+i2RDZtVSupoEgRhmaJg4=
-blitter.com/go/goutmp v1.0.0/go.mod h1:gtlbjC8xGzMk/Cf0BpnVltSa3awOqJ+B5WAxVptTMxk=
-blitter.com/go/herradurakex v0.0.0-20181207001539-873ba2e58872 h1:W0dt8bwmGO7mUr2F5E1R4xjbgYc0xYF/kaAbkVudeNk=
-blitter.com/go/herradurakex v0.0.0-20181207001539-873ba2e58872/go.mod h1:m3+vYZX+2dDjdo+n/HDnXEYJX9pwmNeQLgAfJM8mtxw=
-blitter.com/go/herradurakex v1.0.0 h1:6XaxY+JLT1HUWPF0gYJnjX3pVjrw4YhYZEzZ1U0wkyc=
+blitter.com/go/goutmp v1.0.1/go.mod h1:gtlbjC8xGzMk/Cf0BpnVltSa3awOqJ+B5WAxVptTMxk=
 blitter.com/go/herradurakex v1.0.0/go.mod h1:m3+vYZX+2dDjdo+n/HDnXEYJX9pwmNeQLgAfJM8mtxw=
-blitter.com/go/mtwist v0.0.0-20181024062339-1a11c643f88c h1:zQ6vgMPQ8J3ZJNYsskpfjeY1eoBbLjCJPeZGCZYdVbI=
-blitter.com/go/mtwist v0.0.0-20181024062339-1a11c643f88c/go.mod h1:aU82Nx8+b1v8oZRNqImfEDzDTPim81rY0ACKAIclV18=
-blitter.com/go/mtwist v1.0.0 h1:/Vg6k12+DC+fokeRrLApL22hZS/EqEazJTo/FDdbDog=
 blitter.com/go/mtwist v1.0.0/go.mod h1:aU82Nx8+b1v8oZRNqImfEDzDTPim81rY0ACKAIclV18=
-git.schwanenlied.me/yawning/chacha20.git v0.0.0-20170904085104-e3b1f968fc63 h1:bwZNsbw3qFbg6ox55HrA37nPmh+/wtJxZ7uWeiAdUUc=
 git.schwanenlied.me/yawning/chacha20.git v0.0.0-20170904085104-e3b1f968fc63/go.mod h1:NYi4Ifd1g/YbhIDgDfw6t7QdsW4tofQWMX/+FiDtJWs=
-git.schwanenlied.me/yawning/kyber.git v0.0.0-20180530164001-a270899bd22c h1:SGOx1s56QSOmuCegRcG3yvOG7W8PvRS9ZVnFQl5K2aQ=
 git.schwanenlied.me/yawning/kyber.git v0.0.0-20180530164001-a270899bd22c/go.mod h1:QrbgzU5EL/1jaMD5pD4Tiikj3R5elPMa+RMwFUTGwQU=
-git.schwanenlied.me/yawning/newhope.git v0.0.0-20170622154529-9598792ba8f2 h1:89TYv/+wotJ+QWrH5B/yN0pEQutr2V/5za0VoYiVGCM=
 git.schwanenlied.me/yawning/newhope.git v0.0.0-20170622154529-9598792ba8f2/go.mod h1:weMqACFGzJs4Ni+K9shsRd02N4LkDrtGlkRxISK+II0=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/jameskeane/bcrypt v0.0.0-20120420032655-c3cd44c1e20f h1:UWGE8Vi+1Agt0lrvnd7UsmvwqWKRzb9byK9iQmsbY0Y=
 github.com/jameskeane/bcrypt v0.0.0-20120420032655-c3cd44c1e20f/go.mod h1:u+9Snq0w+ZdYKi8BBoaxnEwWu0fY4Kvu9ByFpM51t1s=
-github.com/kr/pty v1.1.3 h1:/Um6a/ZmD5tF7peoOJ5oN5KMQ0DrGVQSXLNwyckutPk=
-github.com/kr/pty v1.1.3/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/pty v1.1.4 h1:5Myjjh3JY/NaAi4IsUbHADytDyl1VE1Y9PXDlL+P/VQ=
 github.com/kr/pty v1.1.4/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/mattn/go-isatty v0.0.4 h1:bnP0vzxcAdeI1zdubAl5PjU6zsERjGZb7raWodagDYs=
-github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
-github.com/mattn/go-isatty v0.0.7 h1:UvyT9uN+3r7yLEYSlJsbQGdsaB/a0DlgWP3pql6iwOc=
 github.com/mattn/go-isatty v0.0.7/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
-github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9 h1:mKdxBk7AujPs8kU4m80U72y/zjbZ3UcXC7dClwKbUI0=
-golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
-golang.org/x/crypto v0.0.0-20190417174047-f416ebab96af h1:6qGQw30u837TXZbCmLFR9AVA+RjJU1LIbvk0oIkDZGY=
 golang.org/x/crypto v0.0.0-20190417174047-f416ebab96af/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
-golang.org/x/sys v0.0.0-20181211161752-7da8ea5c8182 h1:3jwI9dC+BuoXWS+QtR/HhfGTGTuB6ZzL6II6S1IuVvo=
-golang.org/x/sys v0.0.0-20181211161752-7da8ea5c8182/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20181213200352-4d1cda033e06 h1:0oC8rFnE+74kEmuHZ46F6KHsMr5Gx2gUQPuNz28iQZM=
-golang.org/x/sys v0.0.0-20181213200352-4d1cda033e06/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190416152802-12500544f89f h1:1ZH9RnjNgLzh6YrsRp/c6ddZ8Lq0fq9xztNOoWJ2sz4=
 golang.org/x/sys v0.0.0-20190416152802-12500544f89f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
diff --git a/hkexshd/hkexshd.go b/hkexshd/hkexshd.go
index 6d14ecc..5776001 100755
--- a/hkexshd/hkexshd.go
+++ b/hkexshd/hkexshd.go
@@ -276,6 +276,7 @@ func runShellAs(who, hname, ttype, cmd string, interactive bool, conn *hkexnet.C
 
 	var c *exec.Cmd
 	if interactive {
+		//c = exec.Command("/bin/login", "-f", "-p", who) // nolint: gosec
 		c = exec.Command("/bin/bash", "-i", "-l") // nolint: gosec
 	} else {
 		c = exec.Command("/bin/bash", "-c", cmd) // nolint: gosec
@@ -285,6 +286,7 @@ func runShellAs(who, hname, ttype, cmd string, interactive bool, conn *hkexnet.C
 	//c.Env = []string{"HOME=" + u.HomeDir, "SUDO_GID=", "SUDO_UID=", "SUDO_USER=", "SUDO_COMMAND=", "MAIL=", "LOGNAME="+who}
 	c.Dir = u.HomeDir
 	c.SysProcAttr = &syscall.SysProcAttr{}
+	//c.SysProcAttr.Credential = &syscall.Credential{}
 	c.SysProcAttr.Credential = &syscall.Credential{Uid: uid, Gid: gid}
 	c.Stdin = conn
 	c.Stdout = conn
@@ -293,11 +295,15 @@ func runShellAs(who, hname, ttype, cmd string, interactive bool, conn *hkexnet.C
 	// Start the command with a pty.
 	ptmx, err := pty.Start(c) // returns immediately with ptmx file
 	if err != nil {
+		log.Println(err)
 		return hkexnet.CSEPtyExecFail, err
 	}
 	// Make sure to close the pty at the end.
 	// #gv:s/label=\"runShellAs\$1\"/label=\"deferPtmxClose\"/
-	defer func() { _ = ptmx.Close() }() // nolint: gosec
+	defer func() {
+		//logger.LogDebug(fmt.Sprintf("[Exited process was %d]", c.Process.Pid))
+		_ = ptmx.Close()
+	}() // nolint: gosec
 
 	// get pty info for system accounting (who, lastlog)
 	pts, pe := ptsName(ptmx.Fd())
@@ -377,6 +383,12 @@ func runShellAs(who, hname, ttype, cmd string, interactive bool, conn *hkexnet.C
 				}
 			}
 			conn.SetStatus(hkexnet.CSOType(exitStatus))
+		} else {
+			logger.LogDebug("*** Main proc has exited. ***")
+			// Background jobs still may be running; close the
+			// pty anyway, so the client can return before
+			// wg.Wait() below completes (Issue #18)
+			_ = ptmx.Close()
 		}
 		wg.Wait() // Wait on pty->stdout completion to client
 	}