Procedure for connecting to Cisco AnyConnect VPN from a CentOS7 installed with Server GUI with KDE option. Probably will work on CentOS7 GNOME desktop option as well (the only difference being what packages are installed by default with these original install options. You might have to install an extra package or two depending on whether your install was minimal, desktop, etc). This should also work on Oracle Linux and Red Hat Linux.
This is the procedure. For now I'm just going to paste in the commands from the terminal from the beginning to the connection example.
[gstanden@cl7 Desktop]$ cat /etc/centos-release
CentOS Linux release 7.2.1511 (Core)
[gstanden@cl7 Desktop]$
[root@centos-72a ~]# yum install epel-release
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.mirrors.tds.net
* extras: mirror.cisp.com
* updates: mirror.beyondhosting.net
Resolving Dependencies
--> Running transaction check
---> Package epel-release.noarch 0:7-6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
===================================================================================================================================================================================================================
Package Arch Version Repository Size
===================================================================================================================================================================================================================
Installing:
epel-release noarch 7-6 extras 14 k
Transaction Summary
===================================================================================================================================================================================================================
Install 1 Package
Total download size: 14 k
Installed size: 24 k
Is this ok [y/d/N]: y
Downloading packages:
epel-release-7-6.noarch.rpm | 14 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : epel-release-7-6.noarch 1/1
Verifying : epel-release-7-6.noarch 1/1
Installed:
epel-release.noarch 0:7-6
Complete!
[root@centos-72a ~]# yum install openconnect
Loaded plugins: fastestmirror
epel/x86_64/metalink | 12 kB 00:00:00
epel | 4.3 kB 00:00:00
epel/x86_64/updateinfo FAILED
http://ftp.osuosl.org/pub/fedora-epel/7/x86_64/repodata/6903e789fb60fc5dd338b92c8b9c08a48cba1ead7be57903214408b242f28470-updateinfo.xml.bz2: [Errno 14] HTTP Error 404 - Not Found 0.0 B/s | 0 B --:--:-- ETA
Trying other mirror.
To address this issue please refer to the below knowledge base article
https://access.redhat.com/articles/1320623
If above article doesn't help to resolve this issue please create a bug on https://bugs.centos.org/
epel/x86_64/updateinfo FAILED
https://mirrors.lug.mtu.edu/epel/7/x86_64/repodata/6903e789fb60fc5dd338b92c8b9c08a48cba1ead7be57903214408b242f28470-updateinfo.xml.bz2: [Errno 14] HTTPS Error 404 - Not Found ] 0.0 B/s | 0 B --:--:-- ETA
Trying other mirror.
(1/3): epel/x86_64/group_gz | 170 kB 00:00:00
(2/3): epel/x86_64/updateinfo | 625 kB 00:00:00
(3/3): epel/x86_64/primary_db | 4.2 MB 00:00:01
Loading mirror speeds from cached hostfile
* base: centos.mirrors.tds.net
* epel: ca.mirror.babylon.network
* extras: mirror.cisp.com
* updates: mirror.beyondhosting.net
Resolving Dependencies
--> Running transaction check
---> Package openconnect.x86_64 0:7.06-1.el7 will be installed
--> Processing Dependency: vpnc-script for package: openconnect-7.06-1.el7.x86_64
--> Processing Dependency: libstoken.so.1(STOKEN_1.0)(64bit) for package: openconnect-7.06-1.el7.x86_64
--> Processing Dependency: libstoken.so.1()(64bit) for package: openconnect-7.06-1.el7.x86_64
--> Processing Dependency: libpcsclite.so.1()(64bit) for package: openconnect-7.06-1.el7.x86_64
--> Processing Dependency: liblz4.so.1()(64bit) for package: openconnect-7.06-1.el7.x86_64
--> Running transaction check
---> Package lz4.x86_64 0:r131-1.el7 will be installed
---> Package pcsc-lite-libs.x86_64 0:1.8.8-6.el7 will be installed
---> Package stoken-libs.x86_64 0:0.6-1.el7 will be installed
--> Processing Dependency: libtomcrypt.so.0()(64bit) for package: stoken-libs-0.6-1.el7.x86_64
---> Package vpnc-script.noarch 0:0.5.3-22.svn457.el7 will be installed
--> Running transaction check
---> Package libtomcrypt.x86_64 0:1.17-23.el7 will be installed
--> Processing Dependency: libtommath >= 0.42.0 for package: libtomcrypt-1.17-23.el7.x86_64
--> Processing Dependency: libtommath.so.0()(64bit) for package: libtomcrypt-1.17-23.el7.x86_64
--> Running transaction check
---> Package libtommath.x86_64 0:0.42.0-4.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
===================================================================================================================================================================================================================
Package Arch Version Repository Size
===================================================================================================================================================================================================================
Installing:
openconnect x86_64 7.06-1.el7 epel 459 k
Installing for dependencies:
libtomcrypt x86_64 1.17-23.el7 epel 224 k
libtommath x86_64 0.42.0-4.el7 epel 35 k
lz4 x86_64 r131-1.el7 epel 70 k
pcsc-lite-libs x86_64 1.8.8-6.el7 base 34 k
stoken-libs x86_64 0.6-1.el7 epel 36 k
vpnc-script noarch 0.5.3-22.svn457.el7 epel 14 k
Transaction Summary
===================================================================================================================================================================================================================
Install 1 Package (+6 Dependent packages)
Total download size: 874 k
Installed size: 2.7 M
Is this ok [y/d/N]: y
Downloading packages:
warning: /var/cache/yum/x86_64/7/epel/packages/libtomcrypt-1.17-23.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY
Public key for libtomcrypt-1.17-23.el7.x86_64.rpm is not installed
(1/7): libtomcrypt-1.17-23.el7.x86_64.rpm | 224 kB 00:00:00
(2/7): libtommath-0.42.0-4.el7.x86_64.rpm | 35 kB 00:00:00
(3/7): lz4-r131-1.el7.x86_64.rpm | 70 kB 00:00:00
(4/7): pcsc-lite-libs-1.8.8-6.el7.x86_64.rpm | 34 kB 00:00:00
(5/7): openconnect-7.06-1.el7.x86_64.rpm | 459 kB 00:00:00
(6/7): stoken-libs-0.6-1.el7.x86_64.rpm | 36 kB 00:00:00
(7/7): vpnc-script-0.5.3-22.svn457.el7.noarch.rpm | 14 kB 00:00:00
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 927 kB/s | 874 kB 00:00:00
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
Importing GPG key 0x352C64E5:
Userid : "Fedora EPEL (7) <epel@fedoraproject.org>"
Fingerprint: 91e9 7d7c 4a5e 96f1 7f3e 888f 6a2f aea2 352c 64e5
Package : epel-release-7-6.noarch (@extras)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
Is this ok [y/N]: y
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : pcsc-lite-libs-1.8.8-6.el7.x86_64 1/7
Installing : libtommath-0.42.0-4.el7.x86_64 2/7
Installing : libtomcrypt-1.17-23.el7.x86_64 3/7
Installing : stoken-libs-0.6-1.el7.x86_64 4/7
Installing : vpnc-script-0.5.3-22.svn457.el7.noarch 5/7
Installing : lz4-r131-1.el7.x86_64 6/7
Installing : openconnect-7.06-1.el7.x86_64 7/7
Verifying : openconnect-7.06-1.el7.x86_64 1/7
Verifying : lz4-r131-1.el7.x86_64 2/7
Verifying : libtomcrypt-1.17-23.el7.x86_64 3/7
Verifying : stoken-libs-0.6-1.el7.x86_64 4/7
Verifying : vpnc-script-0.5.3-22.svn457.el7.noarch 5/7
Verifying : libtommath-0.42.0-4.el7.x86_64 6/7
Verifying : pcsc-lite-libs-1.8.8-6.el7.x86_64 7/7
Installed:
openconnect.x86_64 0:7.06-1.el7
Dependency Installed:
libtomcrypt.x86_64 0:1.17-23.el7 libtommath.x86_64 0:0.42.0-4.el7 lz4.x86_64 0:r131-1.el7 pcsc-lite-libs.x86_64 0:1.8.8-6.el7 stoken-libs.x86_64 0:0.6-1.el7 vpnc-script.noarch 0:0.5.3-22.svn457.el7
Complete!
[root@cl7 yum.repos.d]# openconnect https://vpn.xxxxxxxxxxxx.com
POST https://vpn.xxxxxxxxxxxx.com/
Attempting to connect to server xx.xx.xxx.x:xxx
SSL negotiation with vpn.xxxxxxxxxxxx.com
Server certificate verify failed: signer not found
Certificate from VPN server "vpn.xxxxxxxxxxxx.com" failed verification.
Reason: signer not found
Enter 'yes' to accept, 'no' to abort; anything else to view: yes
Connected to HTTPS on vpn.xxxxxxxxxxxx.com
XML POST enabled
Please enter your username and password.
GROUP: [datacenter|dmz|poc-mgmt|poc1|poc2|poc3|poc5|selfservice]:datacenter
POST https://vpn.xxxxxxxxxxxx.com/
XML POST enabled
Please enter your username and password.
Username: xxxxx
Password: xxxxx
POST https://vpn.xxxxxxxxxxxx.com/
Got CONNECT response: HTTP/1.1 200 OK
CSTP connected. DPD 30, Keepalive 20
Connected tun0 as xx.xx.xxx.xxxx, using SSL
Established DTLS connection (using GnuTLS). Ciphersuite (DTLS0.9)-(RSA)-(AES-128-CBC)-(SHA1).