随笔分类 -  os

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firecracker No space left on device
摘要:Error writing to output file - write (28: No space left on device) [IP: 91.189.88.142 80] Fetched 18.4 MB in 18s (1028 kB/s) Reading package lists... 阅读全文

posted @ 2020-10-09 15:08 tycoon3 阅读(391) 评论(0) 推荐(0)

防火墙与iptables
摘要:root@ubuntu:~# iptables -t nat -A POSTROUTING -s 10.10.104.83/32 -o enahisic2i0 -j MASQUERADE root@ubuntu:~# iptables -nvL -t nat Chain PREROUTING (po 阅读全文

posted @ 2020-10-09 14:57 tycoon3 阅读(133) 评论(0) 推荐(0)

cat EOF追加与覆盖
摘要:root@fadfdd4af58a:~# cat /etc/resolv.conf options timeout:2 attempts:5 ; generated by /usr/sbin/dhclient-script search us-east-2.compute.internal us-w 阅读全文

posted @ 2020-10-09 14:31 tycoon3 阅读(435) 评论(0) 推荐(0)

neutron-dhcp-agent
摘要:docker 上 (neutron-dhcp-agent)[neutron@controller1 /]$ ip netns list qdhcp-dbda2a7c-f987-454e-8d33-6115b2f562c1 (id: 221) qdhcp-4af45e0d-78ad-4d85-a07d 阅读全文

posted @ 2020-10-09 11:02 tycoon3 阅读(1315) 评论(0) 推荐(0)

git切换分支
摘要:root@ubuntu:~/kata/qemu# git branch * master root@ubuntu:~/kata/qemu# git branch all root@ubuntu:~/kata/qemu# git branch --all all * master remotes/or 阅读全文

posted @ 2020-09-30 11:03 tycoon3 阅读(339) 评论(0) 推荐(0)

Running Kata Containers with Docker on IBM Power Systems
摘要:Containers have taken off for good reason — they’re light, they’re performant, and they’re easy to integrate. The problem is, the traditional containe 阅读全文

posted @ 2020-09-30 09:11 tycoon3 阅读(271) 评论(0) 推荐(0)

kata container + qemu
摘要:https://www.jianshu.com/p/80c11180ef96 root@ubuntu:~/kata# /usr/bin/qemu-system-aarch64 --version QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubu 阅读全文

posted @ 2020-09-30 09:04 tycoon3 阅读(545) 评论(0) 推荐(0)

golang no Go files
摘要:root@ubuntu:~/kata/images# go get github.com/kata-containers/agent github.com/kata-containers/osbuilder package github.com/kata-containers/osbuilder: 阅读全文

posted @ 2020-09-29 19:26 tycoon3 阅读(1622) 评论(0) 推荐(0)

golang 编译安装kata container (二)
摘要:https://remimin.github.io/2018/09/12/kata-container-01/ kata-runtime kata-proxy kata-shim go get -d -u github.com/kata-containers/runtime github.com/k 阅读全文

posted @ 2020-09-29 17:59 tycoon3 阅读(467) 评论(0) 推荐(0)

golang代理
摘要:root@ubuntu:~/kata/kata_package# go env -w GOPROXY=https://goproxy.cn,direct warning: go env -w GOPROXY=... does not override conflicting OS environme 阅读全文

posted @ 2020-09-29 17:55 tycoon3 阅读(247) 评论(0) 推荐(0)

golang 安装依赖
摘要:go get -d -v ./... 以下载grpc为例 grpc官方提供的下载命令是: go get google.golang.org/grpc 因为无法访问,所以我们需要在$GOPATH/src目录下面创建一个google.golang.org的目录。 在github上找到对应的grpc的包, 阅读全文

posted @ 2020-09-29 17:44 tycoon3 阅读(2873) 评论(0) 推荐(0)

golang
摘要:root@ubuntu:~/kata# go get -d -u github.com/kata-containers/runtime Command 'go' not found, but can be installed with: snap install go # version 1.15. 阅读全文

posted @ 2020-09-29 16:59 tycoon3 阅读(578) 评论(0) 推荐(0)

Malformed entry 55 in list file /etc/apt/sources.list ([option] no value)
摘要:root@ubuntu:~# sudo -E apt-get -y install apt-transport-https ca-certificates software-properties-common E: Malformed entry 55 in list file /etc/apt/s 阅读全文

posted @ 2020-09-29 14:25 tycoon3 阅读(1409) 评论(0) 推荐(0)

UDP, bad length 1496 > 496
摘要:1496是总个报文的长度 [root@localhost ~]# tcpdump -i enp125s0f0 udp and host 10.10.16.81 -env tcpdump: listening on enp125s0f0, link-type EN10MB (Ethernet), ca 阅读全文

posted @ 2020-09-29 09:26 tycoon3 阅读(5606) 评论(0) 推荐(0)

ip报文和最小以太网报文填充
摘要:ipv4报文格式  版本(version):4比特(bit),4(二进制0100)代表ipv4,6(二进制0110)代表ipv6; 报文头长度(IHL,IP Header Length):4比特(bit),该值以4字节(Byte)为一个单位,因此最长可以表示15*4=60字节(Byte);最小为 阅读全文

posted @ 2020-09-28 16:21 tycoon3 阅读(2572) 评论(0) 推荐(0)

UDP (17), length 72, options (unknown 99 [bad length 99]), bad cksum 5f69
摘要:15:49:23.966752 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype ARP (0x0806), length 60: Ethernet (len 6), IPv4 (len 4), Reply 10.10.103.229 is-at 44 阅读全文

posted @ 2020-09-28 16:02 tycoon3 阅读(567) 评论(0) 推荐(0)

udp发包工具
摘要:利用nc -ul xxx 在远程机器新建一个udp监听端口,应用程序所在机器,通过nc -u x.x.x.x xxx 连接后,通过输入一些字符,来看看远程机器是否有屏显,结果本次测试正常,说明网络是通的. echo "Hello World\!" | nc -4u 10.10.103.81 4444 阅读全文

posted @ 2020-09-28 15:56 tycoon3 阅读(929) 评论(0) 推荐(0)

dpdk 802.3, length 8: LLC, dsap
摘要:eth_hdr_seg->ether_type = ether_type; 原因是ether_type不是网络字节序 阅读全文

posted @ 2020-09-27 17:14 tycoon3 阅读(172) 评论(0) 推荐(0)

网卡或者驱动丢包 packet receive errors
摘要:网卡或者驱动丢包 之前讲过,如果 ethtool -S eth0 中有 rx_***_errors 那么很可能是网卡有问题,导致系统丢包,需要联系服务器或者网卡供应商进行处理。 # ethtool -S eth0 | grep rx_ | grep errors rx_crc_errors: 0 r 阅读全文

posted @ 2020-09-27 16:41 tycoon3 阅读(1354) 评论(0) 推荐(0)

curl: (3) Illegal characters found in URL
摘要:curl: (3) Illegal characters found in URL 在windows 中编辑的文件上传到 Linux 后,使用 curl 等工具调用时会报一个curl: (3) Illegal characters found in URL 的错误,这是因为 Linux 与 Wind 阅读全文

posted @ 2020-09-27 14:58 tycoon3 阅读(716) 评论(0) 推荐(0)

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