lpadmin: Unable to connect to server: Transport endpoint is not connected

 List of Topics (Linux, Database, RAC, EBS)

Transport endpoint is not connected for lpadmin lpstat, lpinfo

I have installed cups using YUM repository on our new cloud server.

I was able to ping to printer’s IP but, unable to add printer to the server it gives error as “Transport endpoint is not connected”

Sol: verify cups service is running. If inactive then need to stop/start once cups after installing and fixed the issue

[root@uatcloudapp ~]# ping 192.168.140.20

PING 192.168.140.20 (192.168.140.20) 56(84) bytes of data.

64 bytes from 192.168.140.20: icmp_seq=1 ttl=29 time=17.2 ms

64 bytes from 192.168.140.20: icmp_seq=2 ttl=30 time=16.4 ms

64 bytes from 192.168.140.20: icmp_seq=3 ttl=30 time=16.1 ms

^C

--- 192.168.140.20 ping statistics ---

3 packets transmitted, 3 received, 0% packet loss, time 2002ms

rtt min/avg/max/mdev = 16.123/16.593/17.245/0.498 ms

[root@uatcloudapp ~]#

 

[root@uatcloudapp ~]# yum install cups

[root@uatcloudapp ~]# rpm -qa cups

cups-1.6.3-51.el7.x86_64

[root@uatcloudapp ~]# cat /etc/cups/cupsd.conf

[root@uatcloudapp ~]#

[root@uatcloudapp ~]# lpadmin -p testprinter -E -v socket://192.168.140.20

lpadmin: Unable to connect to server: Transport endpoint is not connected

[root@uatcloudapp ~]# lpstat -v

lpstat: Transport endpoint is not connected

[root@uatcloudapp ~]#

[root@uatcloudapp ~]# lpinfo -m

lpinfo: Transport endpoint is not connected

[root@uatcloudapp ~]#

[root@uatcloudapp ~]# systemctl status cups

● cups.service - CUPS Printing Service

   Loaded: loaded (/usr/lib/systemd/system/cups.service; enabled; vendor preset: enabled)

   Active: inactive (dead)

[root@uatcloudapp ~]#

[root@uatcloudapp ~]# systemctl stop cups

[root@uatcloudapp ~]#

[root@uatcloudapp ~]# systemctl start cups

[root@uatcloudapp ~]#

[root@uatcloudapp ~]#

[root@uatcloudapp ~]# systemctl status cups

● cups.service - CUPS Printing Service

   Loaded: loaded (/usr/lib/systemd/system/cups.service; enabled; vendor preset: enabled)

   Active: active (running) since Tue 2021-08-10 08:08:03 GMT; 2s ago

Main PID: 8186 (cupsd)

   Memory: 1.5M

   CGroup: /system.slice/cups.service

           └─8186 /usr/sbin/cupsd -f

 

Aug 10 08:08:03 uatcloudapp systemd[1]: Started CUPS Printing Service.

[root@uatcloudapp ~]#

[root@uatcloudapp ~]# lpadmin -p testprinter -E -v socket://192.168.140.20

[root@uatcloudapp ~]#

[root@uatcloudapp ~]# lpstat -v

device for testprinter: socket://192.168.140.20

[root@uatcloudapp ~]#

[root@uatcloudapp ~]# lpstat -p

printer testprinter is idle.  enabled since Tue 10 Aug 2021 08:21:03 AM GMT

[root@uatcloudapp ~]#

to print from OS level directly from folder where file is there:

[root@uatcloudapp ~]# lp -d (printer_name) (report_file_name)

Thanks for Reading

Regards,

Mohammed Areefuddin.

Suggested Topics :

Linux	DATABASE	RMAN	RAC	EBS
5.7 Install	DATABASE Install		11201 Install	R1226 Install
Open Filer Instl	Active DataGaurd	Rman DataGuard	12102 RAC INSTAL	R1229 M7 Clone
DNS in Linux 7	WIN-LINUX MIGRATE	RMAN DB CLONE	RAC DataGuard	Pluggable DB Clone
lpadmin cups	ASMCMD ASM Migrt	RMAN ASM Migrt	RAC DB Clone	appsutil for DB
	11204 M-Upgrade		RAC - RAC Clone	JDK JRE upgrade
	12102 M-Upgrade		12C-19C RAC UPGRADE	Add EBS Node
	Flashback DB			ADOP in R12.2.9
				12102 EBS UPGRADE
Linux Basics	DATABASE Basics	RMAN Basics	RAC Basic	EBS Basics