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问题[cisco](ubuntu)

Martin Hope
Jeffrey Rolland
Asked: 2020-05-05 07:32:58 +0800 CST
  • 2

我仍在使用 16.04。我计划在学年结束后升级到 20.04。

我最近做了一些愚蠢的事情并尝试安装 OpenPLC Editor，其中涉及卸载一堆东西，包括一些 Python 和 GTK 的东西。现在，我无法连接到 VPN。起初我无法同时连接到我学校的 VPN 和 NordVPN，但我删除并重新安装了 NordVPN 连接，现在它可以工作了。我学校的 VPN 连接不工作。以下是进入学校 VPN 的说明https://faculty-web.msoe.edu/hasker/resources/vpn.html

编辑：这里有更多信息：

1) 我刚升级到 18.04

2）将密码信息更改为“为所有用户存储密码”至少可以尝试一下。

3)

user@machine:~$ systemctl status network-manager

<snip>

May 26 01:24:17 machine.domain.com NetworkManager[3270]: <info>  [1590474257.5085] manager: (tun0): new Tun device (/org/freedesktop/NetworkManager/Devices/6)
May 26 01:24:17 machine.domain.com NetworkManager[3270]: <info>  [1590474257.5336] devices added (path: /sys/devices/virtual/net/tun0, iface: tun0)
May 26 01:24:17 machine.domain.com NetworkManager[3270]: <info>  [1590474257.5337] device added (path: /sys/devices/virtual/net/tun0, iface: tun0): no ifupdown configuration found.
May 26 01:24:48 machine.domain.com NetworkManager[3270]: /usr/sbin/vpnc: no response from target
May 26 01:24:48 machine.domain.com NetworkManager[3270]: <info>  [1590474288.0457] devices removed (path: /sys/devices/virtual/net/tun0, iface: tun0)
May 26 01:24:48 machine.domain.com NetworkManager[3270]: <warn>  [1590474288.0651] vpn-connection[0x560a256a4600,94b63c87-198c-4e2e-90d1-e0f4320f5e10,"MSOE SSL VPN",0]: VPN plugin: failed: connect-failed 
May 26 01:24:48 machine.domain.com NetworkManager[3270]: <warn>  [1590474288.0652] vpn-connection[0x560a256a4600,94b63c87-198c-4e2e-90d1-e0f4320f5e10,"MSOE SSL VPN",0]: VPN plugin: failed: connect-failed 
May 26 01:24:48 machine.domain.com NetworkManager[3270]: <info>  [1590474288.0652] vpn-connection[0x560a256a4600,94b63c87-198c-4e2e-90d1-e0f4320f5e10,"MSOE SSL VPN",0]: VPN plugin: state changed: stopping
May 26 01:24:48 machine.domain.com NetworkManager[3270]: <info>  [1590474288.0652] vpn-connection[0x560a256a4600,94b63c87-198c-4e2e-90d1-e0f4320f5e10,"MSOE SSL VPN",0]: VPN plugin: state changed: stopped 
May 26 01:24:48 machine.domain.com NetworkManager[3270]: <info>  [1590474288.0697] vpn-connection[0x560a256a4600,94b63c87-198c-4e2e-90d1-e0f4320f5e10,"MSOE SSL VPN",0]: VPN service disappeared

ifupdown 似乎有一些问题。

更新：我刚刚设置了我的服务器并取消了桌面的防火墙例外，并尝试通过 OpenVPN 加载 NordVPN，但现在也无法加载。我应该通过 Nord Linux 应用程序在我的桌面上运行 NordVPN，但我不知道如何验证。

任何帮助表示赞赏。

vpn cisco openvpn 16.04 18.04
Martin Hope
Denis
Asked: 2020-04-30 03:16:41 +0800 CST
  • 3

我正在尝试在 Ubuntu 20.04 上安装 Packet Tracer 7.3（最新版本），但由于两个不可安装的依赖项（“libdouble-conversion1”和“qt-at-spi”）而没有成功。

但是，我成功安装了以前的版本（7.2.2），它以 Ubuntu 安装程序格式（.run 文件）提供，但是当我从我的 gnome 桌面运行它时没有任何反应。

我是Linux的新手，所以如果答案很明显，我很抱歉......

提前致谢 ;-）

丹尼斯

cisco
Martin Hope
Utshaw
Asked: 2020-01-31 02:44:55 +0800 CST
  • 6

当我尝试从deb文件安装 Cisco 数据包跟踪器时，它给出了以下错误：

Unpacking packettracer (7.3.0) ...
dpkg: dependency problems prevent configuration of packettracer:
 packettracer depends on libdouble-conversion1; however:
  Package libdouble-conversion1 is not installed.
 packettracer depends on qt-at-spi; however:
  Package qt-at-spi is not installed.

dpkg: error processing package packettracer (--install):
 dependency problems - leaving unconfigured
Processing triggers for gnome-menus (3.32.0-1ubuntu1) ...
Processing triggers for desktop-file-utils (0.24-1ubuntu1) ...
Processing triggers for mime-support (3.63ubuntu1) ...
Processing triggers for shared-mime-info (1.10-1) ...
Errors were encountered while processing:
 packettracer

然后我尝试libdouble-conversion1使用命令安装sudo apt-get install libdouble-conversion1。它给出了以下错误

Package libdouble-conversion1 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'libdouble-conversion1' has no installation candidate
dpkg dependencies apt cisco packet-analyzer
Martin Hope
Neil
Asked: 2019-05-10 02:22:06 +0800 CST
  • 1

我最近安装了 Cisco Anyconnect，以便在异地时通过 VPN 连接到我大学的内部网。但是，该软件已变得很红，并且经常使我的计算机崩溃。这是一个顶级示例： 在此处输入图像描述

vpnagentd 是主进程，java 进程也链接到它。这些 java 进程经常使用高达 80% 的 RAM，并且每隔几秒钟更改一次它们的 PID。所以我不能杀了他们古怪的风格。我现在想把这个东西从我的电脑上拿下来！

我曾尝试使用“Ubuntu 软件”中心。我选择了应用程序并说“删除”。没有效果。我尝试sudo apt-get remove/purge了各种名称“cisco”“annyconnect”，但这些都无法识别。我想知道的是：
1) 如何查找和删除与 Cisco Annyconnect 相关的文件？
2) 如何查找和禁用与 Cisco Anneconnect 相关的任何服务？（它在启动时启动）。

谢谢！请注意，这个问题（Uninstall "3rd party software"）似乎是关于安装时的 3rd party software 选项。

uninstall vpn software-center top cisco
Martin Hope
Peyman
Asked: 2018-12-31 12:11:55 +0800 CST
  • 5

我已经通过以下方式在 Ubuntu 18.04 上安装了 Cisco AnyConnect：

sudo apt-get install openconnect

我已经通过以下方式很好地连接：

sudo openconnect cz.cisadd2.com

但是如何将我的 Cisco AnyConnect VPN 添加到网络的 GUI 部分 -> Ubuntu 的 VPN 提示符？换句话说，如何通过 GUI 连接 Cisco AnyConnect？

gui vpn cisco 18.04
Martin Hope
mmaceachran
Asked: 2018-09-22 13:34:52 +0800 CST
  • 3

因此，感谢工作中的“升级”，我们获得了新的 VPN 证书。它是自签名的，不再有效。这是系统日志：

openconnect[6002]: Connected to xxx:443
openconnect[6002]: SSL negotiation with xxx
openconnect[6002]: Server certificate verify failed: signer not found
openconnect[6002]: Connected to HTTPS on xxx
openconnect[6002]: Got CONNECT response: HTTP/1.1 200 OK
openconnect[6002]: CSTP connected. DPD 300, Keepalive 30
NetworkManager[1273]: Set up DTLS failed; using SSL instead
openconnect[6002]: Connected as 192.168.0.160, using SSL
openconnect[6002]: SIOCSIFMTU: Operation not permitted
NetworkManager[1273]: <info>  [1537565026.6078] vpn-connection[0x55ab83c186c0,a0614dc2-f483-4dc9-87d4-7b9ac4169d31,"company",0]: VPN connection: (IP Config Get) reply received.
NetworkManager[1273]: <info>  [1537565026.6106] vpn-connection[0x55ab83c186c0,a0614dc2-f483-4dc9-87d4-7b9ac4169d31,"company",7:(vpn0)]: VPN connection: (IP4 Config Get) reply received
NetworkManager[1273]: <warn>  [1537565026.6107] vpn-connection[0x55ab83c186c0,a0614dc2-f483-4dc9-87d4-7b9ac4169d31,"company",7:(vpn0)]: invalid IP4 config received!
NetworkManager[1273]: <warn>  [1537565026.6107] vpn-connection[0x55ab83c186c0,a0614dc2-f483-4dc9-87d4-7b9ac4169d31,"company",7:(vpn0)]: VPN connection: did not receive valid IP config information
NetworkManager[1273]: <info>  [1537565026.6129] vpn-connection[0x55ab83c186c0,a0614dc2-f483-4dc9-87d4-7b9ac4169d31,"company",0]: VPN plugin: state changed: started (4)
NetworkManager[1273]: <info>  [1537565026.6133] vpn-connection[0x55ab83c186c0,a0614dc2-f483-4dc9-87d4-7b9ac4169d31,"company",0]: VPN plugin: state changed: stopping (5)
NetworkManager[1273]: <info>  [1537565026.6134] vpn-connection[0x55ab83c186c0,a0614dc2-f483-4dc9-87d4-7b9ac4169d31,"company",0]: VPN plugin: state changed: stopped (6)

我看到未找到签名者错误，但它超越了“收到无效的 IP4 配置！” 这是怎么回事，我该如何解决？

或者更好的是，告诉 openconnect 信任自签名证书。

networking vpn cisco
Martin Hope
forvas
Asked: 2018-09-21 03:30:27 +0800 CST
  • 1

我必须连接到 Cisco Meraki VPN。

  • 我正在使用全新安装的 Kubuntu 18.04 LTS。
  • 我得到了一个公共 IP、一个 VPN 用户、它的密码和一个预共享密钥。
  • 我打开网络管理器并创建了一个新的 VPN，选择第 2 层隧道协议 (L2TP) -与 L2TP VPN 服务器兼容-。我在各自的字段中填写了数据。

我能够在 16.04 年前连接到这些类型的 VPN，但是当我连接到这个时，我得到了错误，因为我是这个主题的新手，所以我不能很好地理解错误消息。这是系统日志（XXX.XXX.XXX.XXX 表示我必须连接到的公共 IP）：

Sep 20 12:11:51 H81M-DS2V NetworkManager[570]: <info>  [1537438311.1469] audit: op="connection-activate" uuid="e08aedcd-7c6c-41ac-92fe-796c04bd5345" name="Cisco Meraki VPN" pid=1009 uid=1000 result="success"
Sep 20 12:11:51 H81M-DS2V NetworkManager[570]: <info>  [1537438311.1522] vpn-connection[0x5591977d64c0,e08aedcd-7c6c-41ac-92fe-796c04bd5345,"Cisco Meraki VPN",0]: Started the VPN service, PID 31186
Sep 20 12:11:51 H81M-DS2V NetworkManager[570]: <info>  [1537438311.1668] vpn-connection[0x5591977d64c0,e08aedcd-7c6c-41ac-92fe-796c04bd5345,"Cisco Meraki VPN",0]: Saw the service appear; activating connection
Sep 20 12:11:51 H81M-DS2V nm-l2tp-service[31186]: Check port 1701
Sep 20 12:11:51 H81M-DS2V nm-l2tp-service[31186]: Can't bind to port 1701
Sep 20 12:11:51 H81M-DS2V NetworkManager[570]: Stopping strongSwan IPsec failed: starter is not running
Sep 20 12:11:53 H81M-DS2V NetworkManager[570]: Starting strongSwan 5.6.2 IPsec [starter]...
Sep 20 12:11:53 H81M-DS2V NetworkManager[570]: Loading config setup
Sep 20 12:11:53 H81M-DS2V NetworkManager[570]: Loading conn 'e08aedcd-7c6c-41ac-92fe-796c04bd5345'
Sep 20 12:11:53 H81M-DS2V NetworkManager[570]: found netkey IPsec stack
Sep 20 12:11:53 H81M-DS2V charon: 00[DMN] Starting IKE charon daemon (strongSwan 5.6.2, Linux 4.15.0-29-generic, x86_64)
Sep 20 12:11:53 H81M-DS2V charon: 00[CFG] loading ca certificates from '/etc/ipsec.d/cacerts'
Sep 20 12:11:53 H81M-DS2V charon: 00[CFG] loading aa certificates from '/etc/ipsec.d/aacerts'
Sep 20 12:11:53 H81M-DS2V charon: 00[CFG] loading ocsp signer certificates from '/etc/ipsec.d/ocspcerts'
Sep 20 12:11:53 H81M-DS2V charon: 00[CFG] loading attribute certificates from '/etc/ipsec.d/acerts'
Sep 20 12:11:53 H81M-DS2V charon: 00[CFG] loading crls from '/etc/ipsec.d/crls'
Sep 20 12:11:53 H81M-DS2V charon: 00[CFG] loading secrets from '/etc/ipsec.secrets'
Sep 20 12:11:53 H81M-DS2V charon: 00[CFG] loading secrets from '/etc/ipsec.d/nm-l2tp-ipsec-e08aedcd-7c6c-41ac-92fe-796c04bd5345.secrets'
Sep 20 12:11:53 H81M-DS2V charon: 00[CFG]   loaded IKE secret for %any
Sep 20 12:11:53 H81M-DS2V charon: 00[LIB] loaded plugins: charon aes rc2 sha2 sha1 md4 md5 mgf1 random nonce x509 revocation constraints pubkey pkcs1 pkcs7 pkcs8 pkcs12 pgp dnskey sshkey pem openssl fips-prf gmp agent xcbc hmac gcm attr kernel-netlink resolve socket-default connmark stroke updown eap-mschapv2 xauth-generic counters
Sep 20 12:11:53 H81M-DS2V charon: 00[LIB] dropped capabilities, running as uid 0, gid 0
Sep 20 12:11:53 H81M-DS2V charon: 00[JOB] spawning 16 worker threads
Sep 20 12:11:54 H81M-DS2V charon: 13[CFG] rereading secrets
Sep 20 12:11:54 H81M-DS2V charon: 13[CFG] loading secrets from '/etc/ipsec.secrets'
Sep 20 12:11:54 H81M-DS2V charon: 13[CFG] loading secrets from '/etc/ipsec.d/nm-l2tp-ipsec-e08aedcd-7c6c-41ac-92fe-796c04bd5345.secrets'
Sep 20 12:11:54 H81M-DS2V charon: 13[CFG]   loaded IKE secret for %any
Sep 20 12:11:54 H81M-DS2V charon: 15[CFG] received stroke: initiate 'e08aedcd-7c6c-41ac-92fe-796c04bd5345'
Sep 20 12:11:54 H81M-DS2V charon: 07[IKE] initiating Main Mode IKE_SA e08aedcd-7c6c-41ac-92fe-796c04bd5345[1] to XXX.XXX.XXX.XXX
Sep 20 12:11:54 H81M-DS2V charon: 07[ENC] generating ID_PROT request 0 [ SA V V V V V ]
Sep 20 12:11:54 H81M-DS2V charon: 07[NET] sending packet: from 192.168.0.24[500] to XXX.XXX.XXX.XXX[500] (204 bytes)
Sep 20 12:11:58 H81M-DS2V charon: 04[IKE] sending retransmit 1 of request message ID 0, seq 1
Sep 20 12:11:58 H81M-DS2V charon: 04[NET] sending packet: from 192.168.0.24[500] to XXX.XXX.XXX.XXX[500] (204 bytes)
Sep 20 12:12:04 H81M-DS2V NetworkManager[570]: Stopping strongSwan IPsec...
Sep 20 12:12:04 H81M-DS2V charon: 00[DMN] signal of type SIGINT received. Shutting down
Sep 20 12:12:04 H81M-DS2V charon: 00[IKE] destroying IKE_SA in state CONNECTING without notification
Sep 20 12:12:04 H81M-DS2V NetworkManager[570]: initiating Main Mode IKE_SA e08aedcd-7c6c-41ac-92fe-796c04bd5345[1] to XXX.XXX.XXX.XXX
Sep 20 12:12:04 H81M-DS2V NetworkManager[570]: generating ID_PROT request 0 [ SA V V V V V ]
Sep 20 12:12:04 H81M-DS2V NetworkManager[570]: sending packet: from 192.168.0.24[500] to XXX.XXX.XXX.XXX[500] (204 bytes)
Sep 20 12:12:04 H81M-DS2V NetworkManager[570]: sending retransmit 1 of request message ID 0, seq 1
Sep 20 12:12:04 H81M-DS2V NetworkManager[570]: sending packet: from 192.168.0.24[500] to XXX.XXX.XXX.XXX[500] (204 bytes)
Sep 20 12:12:04 H81M-DS2V NetworkManager[570]: destroying IKE_SA in state CONNECTING without notification
Sep 20 12:12:04 H81M-DS2V nm-l2tp-service[31186]: g_dbus_method_invocation_take_error: assertion 'error != NULL' failed
Sep 20 12:12:04 H81M-DS2V NetworkManager[570]: <info>  [1537438324.3534] vpn-connection[0x5591977d64c0,e08aedcd-7c6c-41ac-92fe-796c04bd5345,"Cisco Meraki VPN",0]: VPN plugin: state changed: stopped (6)
Sep 20 12:12:04 H81M-DS2V NetworkManager[570]: <info>  [1537438324.3568] vpn-connection[0x5591977d64c0,e08aedcd-7c6c-41ac-92fe-796c04bd5345,"Cisco Meraki VPN",0]: VPN service disappeared
Sep 20 12:12:04 H81M-DS2V NetworkManager[570]: <warn>  [1537438324.3578] vpn-connection[0x5591977d64c0,e08aedcd-7c6c-41ac-92fe-796c04bd5345,"Cisco Meraki VPN",0]: VPN connection: failed to connect: 'Message recipient disconnected from message bus without replying'

然后我尝试连接xl2tpd停止的服务。无法绑定到端口 1701的消息消失了，但出现了新的错误，实际上我认为结果更糟，因为我什至无法在任何消息中看到我必须连接到的公共 IP。

我也尝试填写 IPsec 设置的Phase 1和Phase 2字段，正如我在几个论坛中阅读的那样，但我什至不知道该写什么，我只是复制了其他答案，所以这是废话。

谁能帮我理解发生了什么？

vpn network-manager cisco 18.04
Martin Hope
Thufir
Asked: 2018-07-08 00:31:13 +0800 CST
  • 0

尝试安装和运行Cisco packettracer 7。 

thufir@dur:~$ 
thufir@dur:~$ /opt/pt/bin/./PacketTracer7 
/opt/pt/bin/./PacketTracer7: error while loading shared libraries: libQt5ScriptTools.so.5: cannot open shared object file: No such file or directory
thufir@dur:~$ 
thufir@dur:~$ LD_LIBRARY_PATH=/opt/pt/lib /opt/pt/bin/./PacketTracer7
/opt/pt/bin/./PacketTracer7: error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory
thufir@dur:~$ 
thufir@dur:~$ locate libpng12.so.0
/snap/core/4650/lib/x86_64-linux-gnu/libpng12.so.0
/snap/core/4650/lib/x86_64-linux-gnu/libpng12.so.0.54.0
/snap/core/4650/usr/lib/x86_64-linux-gnu/libpng12.so.0
/snap/core/4830/lib/x86_64-linux-gnu/libpng12.so.0
/snap/core/4830/lib/x86_64-linux-gnu/libpng12.so.0.54.0
/snap/core/4830/usr/lib/x86_64-linux-gnu/libpng12.so.0
/snap/core/4917/lib/x86_64-linux-gnu/libpng12.so.0
/snap/core/4917/lib/x86_64-linux-gnu/libpng12.so.0.54.0
/snap/core/4917/usr/lib/x86_64-linux-gnu/libpng12.so.0
/snap/gnome-3-26-1604/59/lib/x86_64-linux-gnu/libpng12.so.0
/snap/gnome-3-26-1604/59/lib/x86_64-linux-gnu/libpng12.so.0.54.0
/snap/gnome-3-26-1604/59/usr/lib/x86_64-linux-gnu/libpng12.so.0
/snap/gnome-3-26-1604/64/lib/x86_64-linux-gnu/libpng12.so.0
/snap/gnome-3-26-1604/64/lib/x86_64-linux-gnu/libpng12.so.0.54.0
/snap/gnome-3-26-1604/64/usr/lib/x86_64-linux-gnu/libpng12.so.0
/snap/vuze-vs/3/lib/x86_64-linux-gnu/libpng12.so.0
/snap/vuze-vs/3/lib/x86_64-linux-gnu/libpng12.so.0.54.0
/snap/vuze-vs/3/usr/lib/x86_64-linux-gnu/libpng12.so.0
thufir@dur:~$

显然，因为：

似乎安装了正确的库，但 CPT 需要旧版本 - 52 而不是 55。包含旧版本 libicui18n 的 Debian 软件包可在 http://security.ubuntu.com/ubuntu/pool/main/i/获得icu/libicu52_52.1-3ubuntu0.8_amd64.deb。

手动安装旧包：

thufir@dur:~/deb$ 
thufir@dur:~/deb$ wget http://security.ubuntu.com/ubuntu/pool/main/i/icu/libicu52_52.1-3ubuntu0.8_amd64.deb
--2018-07-07 04:30:57--  http://security.ubuntu.com/ubuntu/pool/main/i/icu/libicu52_52.1-3ubuntu0.8_amd64.deb
Resolving security.ubuntu.com (security.ubuntu.com)... 91.189.91.26, 91.189.91.23, 91.189.88.152, ...
Connecting to security.ubuntu.com (security.ubuntu.com)|91.189.91.26|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 6751362 (6.4M) [application/x-debian-package]
Saving to: ‘libicu52_52.1-3ubuntu0.8_amd64.deb’

libicu52_52.1-3ubuntu0.8_amd64.de 100%[==========================================================>]   6.44M   658KB/s    in 10s     

2018-07-07 04:31:07 (637 KB/s) - ‘libicu52_52.1-3ubuntu0.8_amd64.deb’ saved [6751362/6751362]

thufir@dur:~/deb$ 
thufir@dur:~/deb$ sudo dpkg -i libicu52_52.1-3ubuntu0.8_amd64.deb
[sudo] password for thufir: 
Selecting previously unselected package libicu52:amd64.
(Reading database ... 186168 files and directories currently installed.)
Preparing to unpack libicu52_52.1-3ubuntu0.8_amd64.deb ...
Unpacking libicu52:amd64 (52.1-3ubuntu0.8) ...
Setting up libicu52:amd64 (52.1-3ubuntu0.8) ...
Processing triggers for libc-bin (2.27-3ubuntu1) ...
thufir@dur:~/deb$ 
thufir@dur:~/deb$ packettracer
Starting Packet Tracer 7.1.1
thufir@dur:~/deb$

结果相同。已安装的软件包包括：

sudo apt install libqt5webkit5 libqt5multimedia5 libqt5xml5 libqt5script5 libqt5scripttools5
software-installation networking cisco make ps