铁威马NAS网卡启用IPv6

铁威马的系统配置和常见Linux系统配置不一样,搞了好半天。

假设需要启用IPv6的网卡为eth1

编辑 /etc/network 添加或修改配置为:

[eth1]
SLAVE=0
MTU=1500
DHCP=YES
IPV6_CONF=auto
IPV6_DEFROUTE=yes
IPV6INIT=YES
MtuStatus=0
echo 0 > /proc/sys/net/ipv6/conf/eth1/disable_ipv6

DHCP 获取IP

killall -2 nasips

Debian12 配置 NFS Server 静态挂载端口

因为要配置防火墙,需要固定NFS mount的绑定端口。之前的做法是配置/etc/default/nfs-kernel-server,配置RPCMOUNTDOPTS="--manage-gids -p 2050"。现在该配置文件已经失效,需要修改/etc/nfs.conf

[mountd]
# debug="all|auth|call|general|parse"
manage-gids=y
# descriptors=0
port=2050

群晖Active Backup 备份虚拟机相关端口

VMware vSphere

TCP PortWhereNotes
443vCenter Server, ESXi HostDefault port used for connections to VMware infrastructure (vCenter server and ESXi host). Must be opened on vCenter Servers and ESXi hosts.
902ESXi HostPort used for data transfer and moving. Must be opened on ESXi hosts.

Math-Symbols

本文摘自 https://oi-wiki.org/intro/symbol/


本文规定了 OI Wiki 中数学符号的推荐写法,并给出了一些应用范例。

本文参考了 GB/T 3102.11-1993ISO 80000-2:2019 修订,故基本与国内通行教材的符号体系兼容。

符号的 LaTeX 写法请参考 本文章的源代码

数理逻辑

编号符号,表达式意义,等同表述备注与示例
n1.1$p \land q$$p$ 和 $q$ 的合取$p$ 与 $q$.
n1.2$p \lor q$$p$ 和 $q$ 的析取$p$ 或 $q$;此处的 “或” 是包含的,即若 $p$,$q$ 中有一个为真陈述,则 $p \lor q$ 为真。
n1.3$\lnot p$$p$ 的否定非 $p$.
n1.4$p \implies q$$p$ 蕴含 $q$;若 $p$ 为真,则 $q$ 为真$q \impliedby p$ 和 $p \implies q$ 同义。
n1.5$p \iff q$$p$ 等价于 $q$$(p \implies q) \land (q \implies p)$ 和 $p \iff q$ 同义。
n1.6$(\forall~x \in A)~~p(x)$对 $A$ 中所有的 $x$, 命题 $p(x)$ 均为真如果从上下文中可以得知考虑的是哪个集合 $A$, 可以使用记号 $(\forall~x)~~p(x)$.$\forall$ 称为全称量词。 $x \in A$ 的含义见 n2.1.
n1.7$(\exists~x \in A)~~p(x)$存在一个属于 $A$ 的 $x$ 使得 $p(x)$ 为真如果从上下文中可以得知考虑的是哪个集合 $A$, 可以使用记号 $(\exists~x)~~p(x)$.$\exists$ 称为存在量词。 $x \in A$ 的含义见 n2.1. $(\exists!~x)~~p(x)$(唯一量词)用来表示恰有一个 $x$ 使得 $p(x)$ 为真。 $\exists!$ 也可以写作 $\exists^1$.

希腊字母

LetterNameAncient pronunciationModern pronunciation
Α αalpha, άλφαShort: [a] Long: []Short: first a as in English await Long: a as in English father[a]a as in English father, but short
Β βbeta, βήτα[b]b as in English better[v]v as in English vote
Γ γgamma, γάμμα[ɡ] [ŋ] when used before γ, κ, ξ, χ, and possibly μg as in English get ng as in English sing when used before γ, κ, ξ, χ, and possibly μ[ɣ] ~ [ʝ], [ŋ] [ɲ]g as in Spanish lago or y as in English yellow, ng as in English long
Δ δdelta, δέλτα[d]d as in English delete[ð]th as in English then
Ε εepsilon, έψιλον[e]e as in English pet
Ζ ζzeta, ζήταzd, or possibly [dz]sd as in English wisdom, or possibly dz as in English adze[z]z as in English zoo
Η ηeta, ήτα[ɛː]ê as in French tête[i]i as in English machine, but short
Θ θtheta, θήτα[]t as in English top[θ]th as in English thin
Ι ιiota, ιώταShort: [i] Long: []Short: i as in French vite, Long: i as in English machine[i], [ç], [ʝ], [ɲ]i as in English machine, but short
Κ κkappa, κάππα[k]k as in English, but completely unaspirated[k] ~ [c]k as in English make
Λ λla(m)bda, λά(μ)βδα[l]l as in English lantern
Μ μmu, μυ[m]m as in English music
Ν νnu, νυ[n]n as in English net
Ξ ξxi, ξι[ks]x as in English fox
Ο οomicron, όμικρον[o]o as in German ohne
Π πpi, πι[p]p as in English top
Ρ ρrho, ρώ[r]trilled r as in Italian or Spanish
Σ σ/ς, Ϲ ϲsigma, σίγμα[s] [z] before β, γ, or μs as in English soft, s as in English muse when used before β, γ, or μ
Τ τtau, ταυ[t]t as in English coat
Υ υupsilon, ύψιλονShort: [y] Long: []Short: u as in French lune Long: u as in French ruse[i]i as in English machine, but short
Φ φphi, φι[]p as in English pot[f]f as in English five
Χ χchi, χι[]c as in English cat[x] ~ [ç]ch as in Scottish loch ~ h as in English hue
Ψ ψpsi, ψι[ps]ps as in English lapse
Ω ωomega, ωμέγα[ɔː]aw as in English saw[o]o as in German ohne, similar to British English call

Greenbone Security Assistant 账号管理

创建Admin账号

sudo runuser -u _gvm -- gvmd --create-user=Admin --new-password=12345

重置Admin密码

sudo runuser -u _gvm -- gvmd --user=Admin --new-password=12345

跳过Hermes SEG Admin One-Time Password验证

登录Hermes SEG提示要做动态口令认证,因为是测试环境,所以决定取消该认证。

Register device

因为无法登录网页控制台,所以通过修改数据库修改配置。结果发现"access_control" 是"one_factor",用户配置并没有开启。

重置 ESXi 评估许可

ESXi的评估许可只有60天,如果不想重装虚拟环境的话,可以重置评估许可。操作如下:

  1. 开启SSH 服务, 并登录ESXi服务器
  2. 删除原许可 rm -r /etc/vmware/license.cfg
  3. 复制许可文件cp /etc/vmware/.#license.cfg /etc/vmware/license.cfg
  4. 重启服务/etc/init.d/vpxa restart

H3C交换机PXE配置内容

bootfile-name bootnetx64.efi
next-server 10.0.2.2

H3C交换机DHCP配置中关于PXE的部分,bootfile-name是启动文件,next-server是PXE服务器。

为Jumpserver配置RADIUS服务

jumpserver自建的堡垒机,已有用户是LDAP导入的。现在需要添加新的用户,用其他域认证。Jumpserver目前不能绑定两个LDAP服务器,所以考虑用RADIUS协议认证。

  • Jumpserver上配置RADIUS服务器的IP,端口和密码即可。
  • RADIUS服务器用的Windrows的“网络策略服务器”角色。