Unable to telnet (port 80/7777) to Guest-Linux OS ...

tusar · ‎08-20-2015

Hi All,

I have configured two Guest OS:Linux-5.8 on VMware Workstation-11 on Host OS:Windows-7. I am running Oracle OHS-11g servers on two Linux Servers. I can ping both Linux Guest OS from Host Win-7 OS but unable to do telnet to those Linux Servers with port 80 and 7777 (OHS is running). OHS services are up in both Linux Servers , both ports 80 and 7777 are open. I have tried with Bridged and Host-only Network Connection but no luck. The port 80 is open in Win-7 firewall. Snaps are attached.

The individual OHS services : http://linux1:7777/ and http://linux2:7777/ are opening fine in own Linux servers but I cann't access these URLs from Host Win-7 OS and alternative Linux Servers (i.e OHS1 URL is not opening on Linux2 server and OHS2 URL is not opening on Linux1 server).

Host Win-7 OS

=============

C:\>telnet 192.168.56.121 80

Connecting To 192.168.56.121...Could not open connection to the host, on port 80

: Connect failed

C:\>telnet 192.168.56.121 7777

Connecting To 192.168.56.121...Could not open connection to the host, on port 77

77: Connect failed

Guest OS: Linux

=============

# netstat -tulpn | grep :80

tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 4873/httpd

# netstat -tulpn | grep :7777

tcp 0 0 0.0.0.0:7777 0.0.0.0:* LISTEN 5696/httpd.worker

Host Win-7 OS has no static IP configured. It's the Win-7 wifi which detects office wifi and home wifi as connected (with some different IP range). Even I failed after disabling Firewall and Wi-Fi on Win-7.

Any help and information would be appreciated.

Thanks,

Tusar

rcporto · ‎08-20-2015

Can you attach the output of ifconfig -a from your Linux VM and ipconfig /all from your Windows 7 host ?

---

Richardson Porto
Senior Infrastructure Specialist
LinkedIn: http://linkedin.com/in/richardsonporto

tusar · ‎08-21-2015

Hi Richardson,

Please find the attached IPCONFIG_IFCONFIG.txt.

Thanks,

Tusar

tusar · ‎08-21-2015

==================

Host OS WIN-7

==================

>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : TUSAR-PC

Primary Dns Suffix . . . . . . . :

Node Type . . . . . . . . . . . . : Hybrid

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

DNS Suffix Search List. . . . . . : abc.com

Ethernet adapter Local Area Connection 3:

Media State . . . . . . . . . . . : Media disconnected

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : TAP-Win32 Adapter V9

Physical Address. . . . . . . . . : 00-FF-33-94-0B-36

DHCP Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : abc.com

Description . . . . . . . . . . . : Intel(R) WiFi Link 1000 BGN

Physical Address. . . . . . . . . : 74-E5-0B-75-CA-BA

DHCP Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::437:cf15:1d37:5dcd%12(Preferred)

IPv4 Address. . . . . . . . . . . : 172.26.48.33(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Lease Obtained. . . . . . . . . . : Friday, August 21, 2015 8:42:39 AM

Lease Expires . . . . . . . . . . : Friday, August 21, 2015 9:27:39 AM

Default Gateway . . . . . . . . . : 172.26.48.254

DHCP Server . . . . . . . . . . . : 192.0.2.1

DHCPv6 IAID . . . . . . . . . . . : 309650699

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : 161.12.7.247

161.12.6.247

161.12.6.246

Primary WINS Server . . . . . . . : 10.91.6.30

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller

Physical Address. . . . . . . . . : 84-8F-69-BE-27-B4

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Ethernet adapter VirtualBox Host-Only Network:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : VirtualBox Host-Only Ethernet Adapter

Physical Address. . . . . . . . . : 0A-00-27-00-00-00

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::ac3e:6efc:26de:dcf5%15(Preferred)

IPv4 Address. . . . . . . . . . . : 192.168.56.1(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . :

DHCPv6 IAID . . . . . . . . . . . : 470417447

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1

fec0:0:0:ffff::2%1

fec0:0:0:ffff::3%1

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VMware Network Adapter VMnet1:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet

1

Physical Address. . . . . . . . . : 00-50-56-C0-00-01

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::6dea:dd98:d74f:a4e8%16(Preferred)

IPv4 Address. . . . . . . . . . . : 192.168.145.1(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . :

DHCPv6 IAID . . . . . . . . . . . : 234901590

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1

fec0:0:0:ffff::2%1

fec0:0:0:ffff::3%1

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VMware Network Adapter VMnet2:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet

2

Physical Address. . . . . . . . . : 00-50-56-C0-00-02

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::3477:b455:29cd:f62a%17(Preferred)

IPv4 Address. . . . . . . . . . . : 10.10.1.1(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . :

DHCPv6 IAID . . . . . . . . . . . : 251678806

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1

fec0:0:0:ffff::2%1

fec0:0:0:ffff::3%1

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VMware Network Adapter VMnet3:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet

3

Physical Address. . . . . . . . . : 00-50-56-C0-00-03

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::f9ba:c2a4:582:a6ba%18(Preferred)

IPv4 Address. . . . . . . . . . . : 10.10.2.1(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . :

DHCPv6 IAID . . . . . . . . . . . : 268456022

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1

fec0:0:0:ffff::2%1

fec0:0:0:ffff::3%1

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VMware Network Adapter VMnet8:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet

8

Physical Address. . . . . . . . . : 00-50-56-C0-00-08

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::edfb:c238:9d9f:60a9%19(Preferred)

IPv4 Address. . . . . . . . . . . : 192.168.19.1(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . :

DHCPv6 IAID . . . . . . . . . . . : 285233238

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1

fec0:0:0:ffff::2%1

fec0:0:0:ffff::3%1

NetBIOS over Tcpip. . . . . . . . : Enabled

>ping 192.168.56.121

Pinging 192.168.56.121 with 32 bytes of data:

Reply from 192.168.56.121: bytes=32 time=2ms TTL=64

Reply from 192.168.56.121: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.56.121:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 2ms, Average = 0ms

>ping 192.168.56.122

Pinging 192.168.56.122 with 32 bytes of data:

Reply from 192.168.56.122: bytes=32 time=2ms TTL=64

Reply from 192.168.56.122: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.56.122:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 2ms, Average = 0ms

==================

Guest OS OEL-5.8

==================

Linux-1

# ifconfig -a

eth0 Link encap:Ethernet HWaddr 00:0C:29:F5:E7:B2

inet addr:192.168.56.121 Bcast:192.168.56.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:149 errors:0 dropped:0 overruns:0 frame:0

TX packets:151 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:12192 (11.9 KiB) TX bytes:10101 (9.8 KiB)

lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0

UP LOOPBACK RUNNING MTU:16436 Metric:1

RX packets:6711 errors:0 dropped:0 overruns:0 frame:0

TX packets:6711 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:9445461 (9.0 MiB) TX bytes:9445461 (9.0 MiB)

Linux-2

# ifconfig -a

eth0 Link encap:Ethernet HWaddr 00:0C:29:38:94:54

inet addr:192.168.56.122 Bcast:192.168.56.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:113 errors:0 dropped:0 overruns:0 frame:0

TX packets:152 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:6808 (6.6 KiB) TX bytes:10122 (9.8 KiB)

lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0

UP LOOPBACK RUNNING MTU:16436 Metric:1

RX packets:6705 errors:0 dropped:0 overruns:0 frame:0

TX packets:6705 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:9797173 (9.3 MiB) TX bytes:9797173 (9.3 MiB)

rcporto · ‎08-21-2015

Seems like your VMware Workstation virtual machines are getting IP address from Virtual Box DHCP service, not 100% sure if this is the root cause of your problem, but try disable the Virtual Box DHCP service, make sure your virtual machines are getting IP address from VMware Workstation DHCP service and try again.

---

Richardson Porto
Senior Infrastructure Specialist
LinkedIn: http://linkedin.com/in/richardsonporto

tusar · ‎08-21-2015

I disabled Virtual Box DHCP service. But no luck.

I have assigned static IP on Linux Servers.I tried to change all the VMware Adapters in 192.168.56.xxx range, but same problem. From where the VMware Network Adapters are picking up the IP Address. Even I can't access any Linux server using Putty (Linux Static IP, SSH Port:22) from Win-7.

C:\Users\TUSAR>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : TUSAR-PC

Primary Dns Suffix . . . . . . . :

Node Type . . . . . . . . . . . . : Hybrid

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection 3:

Media State . . . . . . . . . . . : Media disconnected

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : TAP-Win32 Adapter V9

Physical Address. . . . . . . . . : 00-FF-33-94-0B-36

DHCP Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Intel(R) WiFi Link 1000 BGN

Physical Address. . . . . . . . . : 74-E5-0B-75-CA-BA

DHCP Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::437:cf15:1d37:5dcd%12(Preferred)

IPv4 Address. . . . . . . . . . . : 192.168.0.9(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Lease Obtained. . . . . . . . . . : Friday, August 21, 2015 7:49:55 PM

Lease Expires . . . . . . . . . . : Saturday, August 22, 2015 7:49:55 PM

Default Gateway . . . . . . . . . : 192.168.0.1

DHCP Server . . . . . . . . . . . : 192.168.0.1

DHCPv6 IAID . . . . . . . . . . . : 309650699

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : 192.168.0.1

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller

Physical Address. . . . . . . . . : 84-8F-69-BE-27-B4

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Ethernet adapter VMware Network Adapter VMnet1:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet

1

Physical Address. . . . . . . . . : 00-50-56-C0-00-01

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::6dea:dd98:d74f:a4e8%16(Preferred)

IPv4 Address. . . . . . . . . . . : 192.168.145.1(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . :

DHCPv6 IAID . . . . . . . . . . . : 234901590

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1

fec0:0:0:ffff::2%1

fec0:0:0:ffff::3%1

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VMware Network Adapter VMnet2:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet

2

Physical Address. . . . . . . . . : 00-50-56-C0-00-02

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::3477:b455:29cd:f62a%17(Preferred)

IPv4 Address. . . . . . . . . . . : 10.10.1.1(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . :

DHCPv6 IAID . . . . . . . . . . . : 251678806

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1

fec0:0:0:ffff::2%1

fec0:0:0:ffff::3%1

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VMware Network Adapter VMnet3:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet

3

Physical Address. . . . . . . . . : 00-50-56-C0-00-03

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::f9ba:c2a4:582:a6ba%18(Preferred)

IPv4 Address. . . . . . . . . . . : 10.10.2.1(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . :

DHCPv6 IAID . . . . . . . . . . . : 268456022

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1

fec0:0:0:ffff::2%1

fec0:0:0:ffff::3%1

NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VMware Network Adapter VMnet8:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet

8

Physical Address. . . . . . . . . : 00-50-56-C0-00-08

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::edfb:c238:9d9f:60a9%19(Preferred)

IPv4 Address. . . . . . . . . . . : 192.168.19.1(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . :

DHCPv6 IAID . . . . . . . . . . . : 285233238

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-01-E1-5F-84-8F-69-BE-27-B4

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1

fec0:0:0:ffff::2%1

fec0:0:0:ffff::3%1

NetBIOS over Tcpip. . . . . . . . : Enabled

IBM_India · ‎08-24-2015

please open telnet port from Windows Firewall or disable firewall,

same thing we need to do with Linux Machine either allow telnet port or disable firewall

if you think this post is helpful, please provide points accordingly thanks Zubair Technical Specialist

tusar · ‎08-24-2015

I have already tried with opening both 80 & 7777 ports on Win-7, disabling Firewall on Windows-7 (McAfee), Ports (80, 7777) are open in Linux Servers where OHS is running but no luck.

I am not getting any clue what's wrong here to work telnet properly. I am stuck with NetScaler configuration for Load Balancer of OHS servers due to this connectivity issue in VMware.

Thanks,

Tusar

louyo · ‎08-25-2015

When you say you are unable to telnet, what is the symptom? There are many cases where Windows Telnet client to 'Nix telnet servers "doesn't work". If you are getting a blank screen, it could be that and using PuTTy in Raw mode will "fix" it.

If it just is not connecting or connection refused, can you telnet from one Linux guest to the other?

We just went through all that with a Linux telnet server that did not return a prompt to the initial connection and Windows Telnet client locked up.

Pardon me if I don't understand your symptom.

Edit: oops, pardon me, I now see that you got connection failed.

Lou

All

Unable to telnet (port 80/7777) to Guest-Linux OS on VMware workstation from Host Win-7